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#!/usr/bin/python3 |
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# Python >= 3.4 |
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""" |
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usage: program [-h] [--concurrent] [--verbose] |
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Read cases from STDIN and print results to STDOUT |
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examples: |
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./program -v < sampleInput |
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./program < testInput.txt > testOutput.txt |
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./program -cv < testInput.txt > testOutput.txt |
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optional arguments: |
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-h, --help show this help message and exit |
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--concurrent, -c |
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--verbose, -v |
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""" |
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### Helpers |
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pass |
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### Case Solver |
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def solve(line): |
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logger = logging.getLogger(line) |
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args = map(int, line.split(' ')) |
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logger.info('Start %s' % line) |
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raise NotImplementedError() |
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logger.info('End %s' % line) |
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return result |
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### Main |
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import sys, time, logging, argparse, concurrent.futures |
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class Program: |
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""" |
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Read cases from STDIN and print results to STDOUT |
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examples: |
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./program -v < sampleInput |
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./program < testInput.txt > testOutput.txt |
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./program -cv < testInput.txt > testOutput.txt |
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""" |
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def __init__(self, solver): |
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self.solver = solver |
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def main(self): |
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args = self.parseargs() |
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if args.verbose: |
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logging.basicConfig(level=logging.DEBUG) |
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ncases = int(sys.stdin.readline()) |
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cases = [line.strip() for line in sys.stdin.readlines()] |
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if len(cases) is not ncases: |
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raise ValueError() |
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if args.concurrent: |
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with concurrent.futures.ProcessPoolExecutor() as executor: |
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results = executor.map(self.handlecase, cases) |
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else: |
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results = map(self.handlecase, cases) |
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for result in results: |
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self.showresult(*result) |
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def handlecase(self, case): |
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start = time.time() |
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value = self.solver(case) |
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seconds = time.time() - start |
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return seconds, case, value |
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def showresult(self, seconds, case, value): |
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print(value) |
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logging.info("{}s | {} = {}".format(seconds, case, value)) |
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def parseargs(self): |
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parser = argparse.ArgumentParser( |
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'program', |
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description = self.__doc__, |
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formatter_class = argparse.RawTextHelpFormatter |
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) |
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for flag in ['concurrent','verbose']: |
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parser.add_argument('--%s' % flag, '-%s' % flag[0], action='store_true') |
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return parser.parse_args() |
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if __name__ == '__main__': |
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Program(solve).main() |
