Submission #1307426

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307426		lasandra	Tracks in the Snow (BOI13_tracks)	Pypy 3	0 / 100	463 ms	51228 KiB

tracks

n, m = map(int, input().split())
mark = set()
for _ in range(n):
    listing = input()
    # print(listing)
    for x in listing:
        mark.add(x)
print(len(mark) - 1)

Compilation message (stdout)

Compiling 'tracks.py'...

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  adding: __main__.pyc (deflated 16%)

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• Subtask 1: 0 / 30
• Subtask 2: 0 / 70