一个排列组合方面的问题,要用C语言进行编程、解答

Problem Description
假设一堆由1分、2分、5分组成的n个硬币总面值为m分,求一共有多少种可能的组合方式(某种面值的硬币可以数量可以为0)。

Input
输入数据第一行有一个正整数T,表示有T组测试数据;
接下来的T行,每行有两个数n,m,n和m的含义同上。

Output
对于每组测试数据,请输出可能的组合方式数;
每组输出占一行。

Sample Input
2
3 5
4 8

Sample Output
1
2

2个回答

用穷举法!for(I=1;I<=m;I++){for(j=1;j<=m/2;j++){for(k=1;k<=m/5;k++){if(i+2*j+5*k=m) printf(d%,d%,d%,i,j,k);}}}

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