| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 27201 | TAMREF | 팩토리얼 세제곱들의 합 (YDX14_fact) | C++11 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
def main():
n,k=list(map(int,input().split()))
S=0
fact=[1,1,2,6,24,120,720,5040,40320,362880]
for i in range(0,min(n,9)+1):
S+=fact[i]**k
print(S%10) if S%10 else print((S//10)%10)
main()