SoleProprietor's blog

By SoleProprietor, history, 22 months ago, In English

I have two almost identical submissions getting a substantial difference in execution time:

TLE submission uses variable MOD inside the main function:

def main():
    MOD = 998244353  # local var
    ...
main()

and the AC submission uses variable MOD outside:

MOD = 998244353 # global var
def main():
    ...
main()

Any idea what causes such a difference in performance?

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