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adventofcode

Code used to solve https://adventofcode.com/, one branch per year git clone https://hacktivis.me/git/adventofcode.git

day4.0.ha (1263B)

    

  1. // SPDX-FileCopyrightText: 2022 Haelwenn (lanodan) Monnier <contact+adventofcode@hacktivis.me>
  2. // SPDX-License-Identifier: BSD-3-Clause
  4. use bufio;
  5. use os;
  6. use io;
  7. use fmt;
  8. use strings;
  9. use ascii;
  10. use strconv;
  12. fn parse_range(in: str) (uint, uint) = {
  13. 	let (head, tail) = strings::cut(in, "-");
  14. 	let head = strconv::stou(head) as uint;
  15. 	let tail = strconv::stou(tail) as uint;
  16. 	return (head,tail);
  17. };
  19. export fn main() void = {
  20. 	let score = 0;
  22. 	for(true) {
  23. 		let line = match(bufio::scanline(os::stdin)) {
  24. 		case let l: []u8 =>
  25. 			yield l;
  26. 		case io::EOF =>
  27. 			break;
  28. 		case let e: io::error =>
  29. 			fmt::fatal("day4.0: {}", io::strerror(e));
  30. 		};
  32. 		let line = strings::fromutf8(line);
  33. 		let (dum, dee) = strings::cut(line, ",");
  34. 		let dum = parse_range(dum);
  35. 		let dee = parse_range(dee);
  37. 		fmt::printfln("Checking {}-{} and {}-{}", dum.0, dum.1, dee.0, dee.1)!;
  39. 		// Is dee fully inside dum?
  40. 		if(dum.0 >= dee.0 && dee.1 >= dum.1) {
  41. 			fmt::printfln("{}-{} is inside {}-{}", dee.0, dee.1, dum.0, dum.1)!;
  42. 			score += 1;
  43. 			continue;
  44. 		};
  46. 		// Is dum fully inside dee?
  47. 		if(dee.0 >= dum.0 && dum.1 >= dee.1) {
  48. 			fmt::printfln("{}-{} contains {}-{}", dum.0, dum.1, dee.0, dee.1)!;
  49. 			score += 1;
  50. 			continue;
  51. 		};
  52. 	};
  54. 	fmt::printfln("Score: {}", score)!;
  55. };