摘要:
http://acm.pku.edu.cn/JudgeOnline/problem?id=1664还是没理解为什么这么做#include<stdio.h>int dg(int m, int n){ if(m < 0) return 0; if(m == 0 || n == 1) return 1; return dg(m-n, n) + dg(m, n-1);}int main(){ int t, m, n; while(scanf("%d", &t) != EOF) { while(t--) { scanf("%d%d", & 阅读全文