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Richard SmithandJon Ross-Perkins
d2d5c5520b
A collection of additional Carbon examples demonstrating current language capabilities and some limitations of the current state of the toolchain. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
32 lines
800 B
Plaintext
32 lines
800 B
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// https://adventofcode.com/2024/day/11
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library "day11_common";
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import Core library "io";
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import library "io_utils";
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fn Next(n: i64) -> (i64, i64) {
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if (n == 0) { return (1, -1); }
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var pow10: i64 = 10;
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var pow100: i64 = 1;
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while (n / pow100 >= 100) {
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pow100 = pow100 * 100;
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pow10 = pow10 * 10;
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}
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if (n / pow100 >= 10) {
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return (n / pow10, n % pow10);
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}
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return (n * 2024, -1);
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}
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fn Count(n: i64, depth: i32) -> i32 {
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if (n == -1) { return 0; }
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if (depth == 0) { return 1; }
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let next: (i64, i64) = Next(n);
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return Count(next.0, depth - 1) + Count(next.1, depth - 1);
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}
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