aoc

My solutions for the Advent of Code
git clone https://git.tronto.net/aoc
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b.rs (521B)

      1 mod common;
      2 use common::*;
      3 
      4 fn drop(map: &mut Map, i: (usize, usize)) -> bool {
      5     let (x, y) = i;
      6     if y < map.ymax {
      7         for j in vec![(x, y+1), (x-1, y+1), (x+1, y+1)].into_iter() {
      8             if !map.at(j) { return drop(map, j); }
      9         }
     10     }
     11 
     12     map[i] = true;
     13     !map.at((500, 0)) // Returns false after filling the last -> off by 1
     14 }
     15 
     16 fn main() {
     17     let mut map = read_map_from_stdin();
     18     let mut i = 0;
     19     while drop(&mut map, (500, 0)) { i += 1; }
     20     //map.print();
     21     println!("{}", i+1);
     22 }