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#include "aoc.h"
namespace aoc2021 {
int heightmap::areas[grid * grid] = {0};
std::pair<int, int> day9(line_view file) {
heightmap hm;
int r{0};
per_line(file, [&r, &hm](line_view lv){
hm.load(r, lv);
r++;
return true;
});
return {hm.risks(), hm.top3()};
}
}
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