39 lines
1.1 KiB
Nim
39 lines
1.1 KiB
Nim
# Copyright 2021 Christian Ulrich
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# usage: ./part1 < input
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import strutils
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proc countIncreases(): uint =
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var
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line = ""
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prevDepth = high(uint)
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while readLine(stdin, line):
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if line.len() > 0:
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let depth = parseUint(line)
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if depth > prevDepth:
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result.inc()
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prevDepth = depth
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proc main(): int =
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try:
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echo countIncreases()
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except ValueError:
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result = -1
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when isMainModule:
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quit(main())
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