2022-05 in zig
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4 changed files with 647 additions and 0 deletions
10
2022/05-supply-stacks/example
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10
2022/05-supply-stacks/example
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[D]
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[N] [C]
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[Z] [M] [P]
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1 2 3
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move 1 from 2 to 1
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move 3 from 1 to 3
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move 2 from 2 to 1
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move 1 from 1 to 2
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62
2022/05-supply-stacks/first.zig
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62
2022/05-supply-stacks/first.zig
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const std = @import("std");
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const example = @embedFile("example");
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const input = @embedFile("input");
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pub fn main() anyerror!void {
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var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
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defer arena.deinit();
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const allocator = arena.allocator();
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var output = try solve(example, allocator);
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try std.testing.expect(std.mem.eql(u8, output, "CMZ"));
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const result = try solve(input, allocator);
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try std.io.getStdOut().writer().print("{s}\n", .{result});
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}
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fn solve(puzzle: []const u8, allocator: std.mem.Allocator) ![]u8 {
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var it = std.mem.tokenize(u8, puzzle, "\n");
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var line = it.next() orelse unreachable;
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// Initializations from the first line
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const size = (line.len + 1) / 4;
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var output = try allocator.alloc(u8, size);
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var stacks = try allocator.alloc(std.ArrayList(u8), size);
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for (stacks) |*stack| {
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stack.* = std.ArrayList(u8).init(allocator);
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}
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// parse stacks
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while (true) {
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var i: usize = 0;
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while (i < size) : (i += 1) {
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const v = line[i * 4 + 1];
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if (v != ' ') {
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try stacks[i].insert(0, v);
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}
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}
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line = it.next() orelse unreachable;
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if (line[0] != '[') { // we got the line with numbers
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break;
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}
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}
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// process rules
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while (it.next()) |l| {
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var elts = std.mem.split(u8, l, " ");
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_ = elts.next() orelse unreachable; // the move word
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var n = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10);
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_ = elts.next() orelse unreachable; // the from word
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const s = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10) - 1;
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_ = elts.next() orelse unreachable; // the to word
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const d = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10) - 1;
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while (n > 0) : (n -= 1) {
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const v = stacks[s].pop();
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try stacks[d].append(v);
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}
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}
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// generate output
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var i: usize = 0;
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while (i < size) : (i += 1) {
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output[i] = stacks[i].pop();
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}
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return output;
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}
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514
2022/05-supply-stacks/input
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514
2022/05-supply-stacks/input
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[N] [C] [Z]
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[Q] [G] [V] [S] [V]
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[L] [C] [M] [T] [W] [L]
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[S] [H] [L] [C] [D] [H] [S]
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[C] [V] [F] [D] [D] [B] [Q] [F]
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[Z] [T] [Z] [T] [C] [J] [G] [S] [Q]
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[P] [P] [C] [W] [W] [F] [W] [J] [C]
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[T] [L] [D] [G] [P] [P] [V] [N] [R]
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1 2 3 4 5 6 7 8 9
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move 6 from 2 to 1
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move 4 from 6 to 3
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move 1 from 6 to 5
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move 8 from 3 to 8
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move 13 from 8 to 2
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move 2 from 7 to 6
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move 10 from 1 to 6
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move 3 from 2 to 8
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move 5 from 4 to 2
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move 15 from 6 to 5
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move 1 from 1 to 4
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move 2 from 7 to 3
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move 2 from 4 to 2
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move 12 from 5 to 1
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move 4 from 8 to 9
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move 15 from 1 to 3
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move 10 from 9 to 7
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move 1 from 5 to 1
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move 1 from 4 to 8
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move 3 from 7 to 6
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move 8 from 2 to 6
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move 1 from 9 to 8
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move 5 from 2 to 3
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move 1 from 4 to 1
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move 16 from 3 to 1
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move 2 from 2 to 7
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move 13 from 1 to 6
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move 1 from 2 to 4
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move 2 from 2 to 9
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move 1 from 4 to 7
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move 2 from 8 to 2
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move 2 from 2 to 9
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move 1 from 6 to 8
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move 2 from 3 to 8
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move 2 from 1 to 9
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move 1 from 3 to 9
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move 1 from 3 to 2
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move 5 from 5 to 1
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move 2 from 9 to 3
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move 1 from 2 to 3
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move 2 from 1 to 3
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move 3 from 3 to 2
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move 1 from 5 to 7
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move 2 from 7 to 6
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move 2 from 8 to 3
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move 1 from 8 to 9
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move 6 from 3 to 4
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move 3 from 9 to 6
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move 8 from 6 to 4
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move 1 from 2 to 3
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move 1 from 2 to 6
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move 1 from 2 to 9
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move 1 from 3 to 9
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move 5 from 9 to 5
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move 7 from 7 to 4
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move 14 from 4 to 6
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move 1 from 5 to 3
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move 5 from 1 to 9
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move 4 from 5 to 4
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move 1 from 1 to 7
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move 1 from 3 to 8
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move 1 from 8 to 4
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move 4 from 9 to 7
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move 6 from 6 to 5
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move 10 from 4 to 6
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move 1 from 9 to 6
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move 1 from 4 to 3
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move 1 from 3 to 6
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move 1 from 4 to 2
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move 35 from 6 to 3
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move 1 from 2 to 3
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move 4 from 5 to 8
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move 2 from 5 to 4
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move 3 from 8 to 2
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move 2 from 4 to 8
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move 26 from 3 to 8
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move 3 from 2 to 9
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move 6 from 3 to 5
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move 3 from 5 to 7
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move 3 from 7 to 4
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move 3 from 4 to 5
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move 1 from 9 to 5
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move 6 from 5 to 1
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move 2 from 8 to 6
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move 11 from 8 to 5
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move 9 from 5 to 4
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move 1 from 9 to 7
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move 2 from 7 to 9
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move 3 from 1 to 4
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move 1 from 5 to 7
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move 8 from 6 to 1
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move 5 from 7 to 9
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move 7 from 9 to 2
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move 3 from 2 to 9
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move 3 from 7 to 1
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move 4 from 9 to 8
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move 2 from 5 to 6
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move 2 from 2 to 8
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move 2 from 6 to 9
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move 13 from 8 to 1
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move 1 from 2 to 8
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move 3 from 3 to 5
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move 1 from 9 to 8
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move 3 from 5 to 4
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move 1 from 9 to 3
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move 1 from 2 to 3
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move 4 from 8 to 2
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move 3 from 2 to 4
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move 19 from 1 to 2
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move 8 from 1 to 8
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move 1 from 4 to 3
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move 1 from 4 to 1
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move 7 from 2 to 1
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move 1 from 3 to 1
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move 2 from 3 to 1
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move 15 from 4 to 5
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move 1 from 1 to 7
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move 11 from 2 to 8
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move 2 from 2 to 9
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move 1 from 3 to 5
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move 2 from 9 to 4
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move 12 from 8 to 3
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move 16 from 5 to 1
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move 3 from 4 to 3
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move 1 from 7 to 5
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move 2 from 8 to 6
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move 1 from 5 to 4
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move 1 from 4 to 9
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move 18 from 1 to 9
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move 8 from 3 to 8
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move 9 from 8 to 2
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move 4 from 9 to 2
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move 8 from 1 to 2
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move 2 from 6 to 4
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move 17 from 2 to 1
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move 1 from 4 to 5
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move 3 from 2 to 6
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move 1 from 2 to 9
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move 2 from 6 to 1
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move 3 from 3 to 6
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move 1 from 4 to 6
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move 2 from 3 to 2
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move 16 from 9 to 5
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move 14 from 5 to 4
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move 3 from 5 to 8
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move 1 from 2 to 4
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move 4 from 8 to 6
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move 1 from 2 to 8
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move 1 from 3 to 9
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move 1 from 3 to 9
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move 2 from 9 to 1
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move 10 from 8 to 7
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move 7 from 6 to 9
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move 16 from 1 to 5
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move 7 from 4 to 3
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move 1 from 8 to 4
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move 5 from 4 to 2
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move 1 from 5 to 9
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move 5 from 9 to 1
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move 5 from 1 to 2
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move 2 from 9 to 7
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move 1 from 1 to 7
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move 1 from 6 to 8
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move 4 from 4 to 5
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move 1 from 6 to 9
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move 9 from 2 to 1
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move 11 from 5 to 6
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move 2 from 9 to 2
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move 4 from 3 to 4
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move 4 from 4 to 6
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move 1 from 3 to 4
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move 11 from 7 to 4
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move 9 from 4 to 7
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move 11 from 7 to 2
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move 2 from 3 to 5
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move 2 from 4 to 8
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move 7 from 5 to 2
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move 1 from 8 to 3
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move 1 from 5 to 1
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move 1 from 3 to 7
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move 6 from 2 to 9
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move 1 from 8 to 9
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move 6 from 9 to 2
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move 15 from 6 to 2
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move 1 from 7 to 2
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move 31 from 2 to 7
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move 22 from 7 to 3
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move 2 from 5 to 1
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move 3 from 7 to 4
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move 1 from 4 to 9
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move 3 from 4 to 3
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move 1 from 8 to 6
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move 1 from 9 to 6
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move 15 from 1 to 5
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move 1 from 9 to 5
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move 1 from 1 to 8
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move 2 from 6 to 8
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move 1 from 8 to 4
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move 1 from 4 to 6
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move 1 from 6 to 9
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move 10 from 3 to 1
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move 1 from 9 to 7
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move 2 from 7 to 8
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move 10 from 5 to 1
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move 12 from 1 to 4
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move 1 from 3 to 8
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move 11 from 4 to 8
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move 1 from 8 to 3
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move 5 from 5 to 8
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move 1 from 5 to 8
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move 6 from 8 to 6
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move 3 from 2 to 1
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move 1 from 6 to 2
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move 5 from 1 to 6
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move 3 from 1 to 4
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move 3 from 2 to 8
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move 1 from 2 to 9
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move 8 from 3 to 5
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move 2 from 1 to 3
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move 3 from 7 to 5
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move 2 from 3 to 5
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move 3 from 5 to 2
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move 1 from 7 to 9
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move 2 from 9 to 1
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move 1 from 6 to 9
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move 2 from 4 to 8
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move 5 from 6 to 5
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move 1 from 6 to 7
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move 1 from 9 to 8
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move 3 from 6 to 5
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move 7 from 8 to 9
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move 5 from 9 to 1
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move 2 from 4 to 8
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move 11 from 5 to 9
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move 3 from 2 to 3
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move 2 from 5 to 8
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move 4 from 3 to 7
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move 11 from 9 to 5
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move 3 from 7 to 5
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move 1 from 3 to 5
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move 8 from 1 to 4
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move 5 from 3 to 9
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move 15 from 5 to 4
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move 8 from 4 to 1
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move 12 from 8 to 1
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move 4 from 5 to 8
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move 12 from 4 to 5
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move 3 from 7 to 2
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move 11 from 5 to 7
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move 8 from 8 to 7
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move 7 from 9 to 8
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move 2 from 5 to 7
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move 4 from 7 to 8
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move 9 from 8 to 4
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move 11 from 4 to 5
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move 6 from 7 to 8
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move 9 from 8 to 7
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move 18 from 7 to 5
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move 1 from 8 to 1
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move 4 from 1 to 5
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move 1 from 7 to 2
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move 6 from 1 to 9
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move 1 from 2 to 4
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move 1 from 4 to 3
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move 3 from 1 to 7
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move 1 from 4 to 2
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move 3 from 2 to 5
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move 2 from 9 to 5
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move 1 from 2 to 6
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move 4 from 7 to 8
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move 1 from 6 to 2
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move 1 from 2 to 4
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move 4 from 8 to 5
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move 3 from 9 to 7
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move 1 from 9 to 5
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move 1 from 4 to 3
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move 2 from 3 to 8
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move 2 from 7 to 4
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move 28 from 5 to 8
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move 1 from 8 to 9
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move 1 from 9 to 3
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move 6 from 5 to 6
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move 5 from 5 to 2
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move 1 from 3 to 4
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move 1 from 7 to 4
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move 1 from 5 to 6
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move 16 from 8 to 3
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move 7 from 1 to 8
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move 4 from 4 to 9
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move 1 from 2 to 4
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move 3 from 2 to 3
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move 6 from 6 to 8
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move 10 from 3 to 8
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move 1 from 2 to 7
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move 1 from 6 to 7
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move 11 from 8 to 5
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move 2 from 7 to 8
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move 1 from 1 to 9
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move 5 from 9 to 5
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move 4 from 3 to 2
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move 1 from 4 to 2
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move 1 from 3 to 8
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move 3 from 8 to 2
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move 19 from 8 to 7
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move 6 from 7 to 6
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move 4 from 5 to 2
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move 9 from 7 to 5
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move 1 from 7 to 1
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move 5 from 6 to 9
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move 1 from 7 to 4
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move 1 from 6 to 7
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move 1 from 4 to 7
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move 1 from 1 to 2
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move 2 from 7 to 3
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move 6 from 5 to 9
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move 9 from 9 to 1
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move 17 from 5 to 4
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move 2 from 3 to 1
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move 13 from 4 to 7
|
||||||
|
move 3 from 3 to 5
|
||||||
|
move 7 from 1 to 4
|
||||||
|
move 1 from 5 to 8
|
||||||
|
move 2 from 5 to 2
|
||||||
|
move 6 from 7 to 3
|
||||||
|
move 1 from 5 to 7
|
||||||
|
move 1 from 9 to 1
|
||||||
|
move 2 from 3 to 2
|
||||||
|
move 1 from 9 to 3
|
||||||
|
move 9 from 7 to 3
|
||||||
|
move 10 from 3 to 5
|
||||||
|
move 8 from 4 to 2
|
||||||
|
move 1 from 4 to 1
|
||||||
|
move 13 from 2 to 4
|
||||||
|
move 5 from 4 to 3
|
||||||
|
move 1 from 5 to 9
|
||||||
|
move 1 from 7 to 2
|
||||||
|
move 6 from 4 to 2
|
||||||
|
move 4 from 1 to 8
|
||||||
|
move 3 from 4 to 6
|
||||||
|
move 9 from 8 to 9
|
||||||
|
move 17 from 2 to 3
|
||||||
|
move 2 from 8 to 6
|
||||||
|
move 1 from 4 to 3
|
||||||
|
move 2 from 6 to 3
|
||||||
|
move 2 from 1 to 3
|
||||||
|
move 13 from 3 to 4
|
||||||
|
move 8 from 9 to 8
|
||||||
|
move 7 from 4 to 6
|
||||||
|
move 3 from 5 to 6
|
||||||
|
move 5 from 8 to 2
|
||||||
|
move 9 from 6 to 1
|
||||||
|
move 7 from 2 to 4
|
||||||
|
move 2 from 6 to 9
|
||||||
|
move 1 from 1 to 5
|
||||||
|
move 18 from 3 to 8
|
||||||
|
move 5 from 1 to 3
|
||||||
|
move 1 from 6 to 1
|
||||||
|
move 9 from 4 to 7
|
||||||
|
move 11 from 8 to 7
|
||||||
|
move 5 from 7 to 5
|
||||||
|
move 2 from 4 to 5
|
||||||
|
move 1 from 6 to 2
|
||||||
|
move 13 from 7 to 8
|
||||||
|
move 1 from 4 to 9
|
||||||
|
move 1 from 9 to 6
|
||||||
|
move 4 from 1 to 5
|
||||||
|
move 1 from 7 to 6
|
||||||
|
move 9 from 5 to 7
|
||||||
|
move 8 from 5 to 6
|
||||||
|
move 10 from 7 to 2
|
||||||
|
move 1 from 5 to 7
|
||||||
|
move 1 from 7 to 1
|
||||||
|
move 17 from 8 to 2
|
||||||
|
move 9 from 6 to 7
|
||||||
|
move 6 from 7 to 1
|
||||||
|
move 2 from 7 to 2
|
||||||
|
move 1 from 4 to 2
|
||||||
|
move 12 from 2 to 8
|
||||||
|
move 7 from 1 to 2
|
||||||
|
move 6 from 8 to 6
|
||||||
|
move 3 from 8 to 2
|
||||||
|
move 1 from 7 to 2
|
||||||
|
move 2 from 3 to 4
|
||||||
|
move 1 from 4 to 9
|
||||||
|
move 2 from 3 to 5
|
||||||
|
move 2 from 3 to 7
|
||||||
|
move 1 from 4 to 6
|
||||||
|
move 2 from 7 to 1
|
||||||
|
move 7 from 2 to 7
|
||||||
|
move 6 from 7 to 1
|
||||||
|
move 1 from 5 to 2
|
||||||
|
move 6 from 8 to 4
|
||||||
|
move 4 from 9 to 7
|
||||||
|
move 1 from 5 to 2
|
||||||
|
move 3 from 8 to 1
|
||||||
|
move 1 from 9 to 4
|
||||||
|
move 1 from 7 to 8
|
||||||
|
move 1 from 8 to 1
|
||||||
|
move 4 from 7 to 8
|
||||||
|
move 1 from 4 to 2
|
||||||
|
move 3 from 6 to 9
|
||||||
|
move 2 from 9 to 7
|
||||||
|
move 1 from 9 to 3
|
||||||
|
move 2 from 4 to 3
|
||||||
|
move 2 from 8 to 3
|
||||||
|
move 5 from 3 to 4
|
||||||
|
move 4 from 6 to 2
|
||||||
|
move 8 from 2 to 9
|
||||||
|
move 1 from 6 to 5
|
||||||
|
move 10 from 2 to 3
|
||||||
|
move 2 from 8 to 3
|
||||||
|
move 8 from 9 to 3
|
||||||
|
move 9 from 2 to 5
|
||||||
|
move 1 from 2 to 4
|
||||||
|
move 1 from 2 to 3
|
||||||
|
move 7 from 5 to 6
|
||||||
|
move 1 from 5 to 7
|
||||||
|
move 13 from 3 to 4
|
||||||
|
move 2 from 7 to 8
|
||||||
|
move 5 from 3 to 1
|
||||||
|
move 1 from 5 to 3
|
||||||
|
move 1 from 8 to 5
|
||||||
|
move 1 from 2 to 8
|
||||||
|
move 1 from 7 to 9
|
||||||
|
move 1 from 4 to 2
|
||||||
|
move 15 from 4 to 8
|
||||||
|
move 6 from 4 to 7
|
||||||
|
move 6 from 7 to 8
|
||||||
|
move 1 from 6 to 5
|
||||||
|
move 1 from 4 to 6
|
||||||
|
move 1 from 9 to 6
|
||||||
|
move 2 from 5 to 2
|
||||||
|
move 6 from 6 to 4
|
||||||
|
move 6 from 1 to 8
|
||||||
|
move 6 from 4 to 9
|
||||||
|
move 2 from 6 to 1
|
||||||
|
move 1 from 2 to 9
|
||||||
|
move 26 from 8 to 1
|
||||||
|
move 4 from 3 to 7
|
||||||
|
move 2 from 2 to 5
|
||||||
|
move 16 from 1 to 4
|
||||||
|
move 3 from 9 to 8
|
||||||
|
move 3 from 8 to 7
|
||||||
|
move 3 from 5 to 1
|
||||||
|
move 2 from 9 to 2
|
||||||
|
move 1 from 9 to 7
|
||||||
|
move 1 from 9 to 1
|
||||||
|
move 8 from 4 to 1
|
||||||
|
move 4 from 4 to 9
|
||||||
|
move 1 from 2 to 3
|
||||||
|
move 1 from 3 to 7
|
||||||
|
move 2 from 8 to 2
|
||||||
|
move 3 from 4 to 2
|
||||||
|
move 1 from 4 to 7
|
||||||
|
move 9 from 7 to 5
|
||||||
|
move 1 from 9 to 8
|
||||||
|
move 2 from 9 to 8
|
||||||
|
move 5 from 5 to 7
|
||||||
|
move 1 from 9 to 5
|
||||||
|
move 6 from 2 to 6
|
||||||
|
move 1 from 8 to 2
|
||||||
|
move 5 from 6 to 5
|
||||||
|
move 1 from 7 to 4
|
||||||
|
move 3 from 8 to 9
|
||||||
|
move 3 from 9 to 7
|
||||||
|
move 1 from 6 to 4
|
||||||
|
move 2 from 4 to 1
|
||||||
|
move 2 from 5 to 8
|
||||||
|
move 1 from 2 to 9
|
||||||
|
move 2 from 8 to 9
|
||||||
|
move 3 from 9 to 3
|
||||||
|
move 8 from 7 to 3
|
||||||
|
move 4 from 5 to 8
|
||||||
|
move 1 from 3 to 9
|
||||||
|
move 3 from 5 to 8
|
||||||
|
move 1 from 5 to 3
|
||||||
|
move 6 from 8 to 6
|
||||||
|
move 3 from 3 to 9
|
||||||
|
move 5 from 3 to 2
|
||||||
|
move 5 from 6 to 4
|
||||||
|
move 14 from 1 to 5
|
||||||
|
move 8 from 5 to 6
|
||||||
|
move 2 from 3 to 2
|
||||||
|
move 4 from 9 to 1
|
||||||
|
move 1 from 8 to 7
|
||||||
|
move 7 from 2 to 3
|
||||||
|
move 6 from 3 to 7
|
||||||
|
move 3 from 5 to 3
|
||||||
|
move 1 from 3 to 9
|
||||||
|
move 12 from 1 to 5
|
||||||
|
move 1 from 9 to 7
|
||||||
|
move 2 from 3 to 1
|
||||||
|
move 1 from 7 to 8
|
||||||
|
move 1 from 8 to 7
|
||||||
|
move 2 from 3 to 6
|
||||||
|
move 2 from 1 to 9
|
||||||
|
move 2 from 5 to 6
|
||||||
|
move 2 from 9 to 7
|
||||||
|
move 9 from 7 to 3
|
||||||
|
move 7 from 1 to 5
|
||||||
|
move 5 from 5 to 2
|
||||||
|
move 8 from 6 to 8
|
||||||
|
move 5 from 8 to 9
|
||||||
|
|
61
2022/05-supply-stacks/second.zig
Normal file
61
2022/05-supply-stacks/second.zig
Normal file
|
@ -0,0 +1,61 @@
|
||||||
|
const std = @import("std");
|
||||||
|
|
||||||
|
const example = @embedFile("example");
|
||||||
|
const input = @embedFile("input");
|
||||||
|
|
||||||
|
pub fn main() anyerror!void {
|
||||||
|
var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
|
||||||
|
defer arena.deinit();
|
||||||
|
const allocator = arena.allocator();
|
||||||
|
|
||||||
|
var output = try solve(example, allocator);
|
||||||
|
try std.testing.expect(std.mem.eql(u8, output, "MCD"));
|
||||||
|
|
||||||
|
const result = try solve(input, allocator);
|
||||||
|
try std.io.getStdOut().writer().print("{s}\n", .{result});
|
||||||
|
}
|
||||||
|
|
||||||
|
fn solve(puzzle: []const u8, allocator: std.mem.Allocator) ![]u8 {
|
||||||
|
var it = std.mem.tokenize(u8, puzzle, "\n");
|
||||||
|
var line = it.next() orelse unreachable;
|
||||||
|
// Initializations from the first line
|
||||||
|
const size = (line.len + 1) / 4;
|
||||||
|
var output = try allocator.alloc(u8, size);
|
||||||
|
var stacks = try allocator.alloc(std.ArrayList(u8), size);
|
||||||
|
for (stacks) |*stack| {
|
||||||
|
stack.* = std.ArrayList(u8).init(allocator);
|
||||||
|
}
|
||||||
|
// parse stacks
|
||||||
|
while (true) {
|
||||||
|
var i: usize = 0;
|
||||||
|
while (i < size) : (i += 1) {
|
||||||
|
const v = line[i * 4 + 1];
|
||||||
|
if (v != ' ') {
|
||||||
|
try stacks[i].insert(0, v);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
line = it.next() orelse unreachable;
|
||||||
|
if (line[0] != '[') { // we got the line with numbers
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// process rules
|
||||||
|
while (it.next()) |l| {
|
||||||
|
var elts = std.mem.split(u8, l, " ");
|
||||||
|
_ = elts.next() orelse unreachable; // the move word
|
||||||
|
var n = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10);
|
||||||
|
_ = elts.next() orelse unreachable; // the from word
|
||||||
|
const s = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10) - 1;
|
||||||
|
_ = elts.next() orelse unreachable; // the to word
|
||||||
|
const d = try std.fmt.parseInt(u8, elts.next() orelse unreachable, 10) - 1;
|
||||||
|
const nl = stacks[s].items.len - n;
|
||||||
|
try stacks[d].appendSlice(stacks[s].items[nl..]);
|
||||||
|
stacks[s].items.len = nl;
|
||||||
|
}
|
||||||
|
// generate output
|
||||||
|
var i: usize = 0;
|
||||||
|
while (i < size) : (i += 1) {
|
||||||
|
output[i] = stacks[i].pop();
|
||||||
|
}
|
||||||
|
return output;
|
||||||
|
}
|
Loading…
Add table
Reference in a new issue