Submission #408287

Source Code Expand

from functools import reduce
from operator import mul

N, K = map(int, input().split())
combi = lambda i, j: reduce(mul, range(i, i - j, -1)) // reduce(mul, range(j, 0, -1)) if j > 0 else 1

res = combi(N + K - 1, K) if N > K else combi(N, K % N)
print(res % 1000000007)

Submission Info

Submission Time
Task B - 高橋幼稚園
User yumechi
Language Python (3.4.2)
Score 100
Code Size 279 Byte
Status AC
Exec Time 115 ms
Memory 7500 KB

Judge Result

Set Name Sample Subtask1 Subtask2
Score / Max Score 0 / 0 80 / 80 20 / 20
Status
AC × 3
AC × 21
AC × 33
Set Name Test Cases
Sample subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt
Subtask1 subtask0_sample_01.txt, subtask0_sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt
Subtask2 subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt
Case Name Status Exec Time Memory
subtask0_sample_01.txt AC 115 ms 7444 KB
subtask0_sample_02.txt AC 113 ms 7424 KB
subtask0_sample_03.txt AC 112 ms 7452 KB
subtask1_01.txt AC 112 ms 7456 KB
subtask1_02.txt AC 114 ms 7364 KB
subtask1_03.txt AC 113 ms 7452 KB
subtask1_04.txt AC 113 ms 7500 KB
subtask1_05.txt AC 111 ms 7456 KB
subtask1_06.txt AC 111 ms 7456 KB
subtask1_07.txt AC 113 ms 7456 KB
subtask1_08.txt AC 112 ms 7452 KB
subtask1_09.txt AC 111 ms 7456 KB
subtask1_10.txt AC 115 ms 7452 KB
subtask1_11.txt AC 114 ms 7488 KB
subtask1_12.txt AC 111 ms 7456 KB
subtask1_13.txt AC 112 ms 7456 KB
subtask1_14.txt AC 113 ms 7456 KB
subtask1_15.txt AC 112 ms 7456 KB
subtask1_16.txt AC 111 ms 7452 KB
subtask1_17.txt AC 111 ms 7460 KB
subtask1_18.txt AC 112 ms 7468 KB
subtask1_19.txt AC 111 ms 7456 KB
subtask2_01.txt AC 111 ms 7456 KB
subtask2_02.txt AC 111 ms 7452 KB
subtask2_03.txt AC 111 ms 7452 KB
subtask2_04.txt AC 112 ms 7456 KB
subtask2_05.txt AC 112 ms 7440 KB
subtask2_06.txt AC 110 ms 7452 KB
subtask2_07.txt AC 112 ms 7428 KB
subtask2_08.txt AC 112 ms 7456 KB
subtask2_09.txt AC 111 ms 7456 KB
subtask2_10.txt AC 112 ms 7456 KB
subtask2_11.txt AC 111 ms 7456 KB