#BZOJ4870. 组合数问题
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ID: 3523
Type: RemoteJudge
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
root
组合数问题
No submission language available for this problem.
题目描述
输入格式
第一行有四个整数 n, p, k, r，所有整数含义见问题描述。
1 ≤ n ≤ 10^9, 0 ≤ r < k ≤ 50, 2 ≤ p ≤ 2^30 − 1
输出格式
一行一个整数代表答案。
2 10007 2 0
8