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()
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
21 ms |
3 KB |
answer is '4' |
| 2 |
Correct |
28 ms |
3 KB |
answer is '2' |
| 3 |
Correct |
28 ms |
3 KB |
answer is '2' |
| 4 |
Correct |
22 ms |
3 KB |
answer is '2' |
| 5 |
Correct |
28 ms |
3 KB |
answer is '2' |
| 6 |
Correct |
34 ms |
3 KB |
answer is '4' |
| 7 |
Correct |
22 ms |
3 KB |
answer is '6' |
| 8 |
Correct |
28 ms |
3 KB |
answer is '1' |
| 9 |
Correct |
26 ms |
3 KB |
answer is '2' |
| 10 |
Correct |
27 ms |
3 KB |
answer is '6' |
| 11 |
Correct |
30 ms |
3 KB |
answer is '4' |
| 12 |
Correct |
37 ms |
3 KB |
answer is '5' |
| 13 |
Correct |
28 ms |
3 KB |
answer is '2' |
| 14 |
Correct |
29 ms |
3 KB |
answer is '3' |
| 15 |
Correct |
30 ms |
3 KB |
answer is '4' |
| 16 |
Correct |
32 ms |
3 KB |
answer is '5' |
| 17 |
Correct |
29 ms |
3 KB |
answer is '6' |
| 18 |
Correct |
29 ms |
3 KB |
answer is '7' |
| 19 |
Correct |
27 ms |
3 KB |
answer is '8' |
| 20 |
Correct |
26 ms |
3 KB |
answer is '9' |
| 21 |
Correct |
28 ms |
3 KB |
answer is '1' |
| 22 |
Correct |
38 ms |
3 KB |
answer is '6' |
| 23 |
Incorrect |
29 ms |
3 KB |
expected '3', found '1' |
| 24 |
Halted |
0 ms |
0 KB |
- |
