25 lines
641 B
Nim
25 lines
641 B
Nim
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import ./common, std/[strutils, sequtils, strformat, sugar, sets, math]
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proc toGrid(s: seq[string]): seq[seq[int]] =
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for l in s: result.add(l.mapIt(int(it)-int('0')))
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proc p1(c: seq[seq[int]]): int =
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let h = c.len()
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let w = c[0].len()
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for y,l in c.pairs():
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for x,n in l.pairs():
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if x > 0 and c[y][x-1] <= n: continue
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if y > 0 and c[y-1][x] <= n: continue
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if x < w-1 and c[y][x+1] <= n: continue
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if y < h-1 and c[y+1][x] <= n: continue
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result += n + 1
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doDay(9, (n) => n.loadInput().toGrid(),
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p1,
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p1,
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"""2199943210
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3987894921
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9856789892
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8767896789
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9899965678""".split('\n').toGrid(), 15, 15)
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