60 lines
1.4 KiB
Nim
60 lines
1.4 KiB
Nim
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import std/strutils
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import std/sequtils
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proc grid_hidden(grid: seq[seq[int]], cx: int, cy: int, width: int, height: int): bool =
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let cv = grid[cy][cx]
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if cx == 0 or cy == 0 or cx == width-1 or cy == height-1:
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return false
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if not (cx+1 ..< width).toSeq().any(proc(x:int):bool = grid[cy][x] >= cv):
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return false
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if not (0 ..< cx).toSeq().any(proc(x:int):bool = grid[cy][x] >= cv):
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return false
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if not (cy+1 ..< height).toSeq().any(proc(y:int):bool = grid[y][cx] >= cv):
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return false
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if not (0 ..< cy).toSeq().any(proc(y:int):bool = grid[y][cx] >= cv):
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return false
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return true
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proc run08_1(): string =
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const input = staticRead"../input/day08.txt"
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let grid = splitLines(input)
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.filterIt(it != "")
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.mapIt(it.toSeq().map(proc(p:char):int = parseInt(p.repeat(1))))
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# echo grid
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let width = grid[0].len()
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let height = grid.len()
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# echo width, "x", height
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var visible = 0
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for y in 0 ..< height:
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for x in 0 ..< width:
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let hidden = grid_hidden(grid, x, y, width, height)
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#if hidden:
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# io.stdout.write "#"
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#else:
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# io.stdout.write "."
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if not hidden: visible += 1
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#io.stdout.write "\n"
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return intToStr(visible)
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when not defined(js):
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echo run08_1()
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else:
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proc js_run08_1(): cstring {.exportc.} =
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return cstring(run08_1())
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