hdu 2566 统计硬币

//暴力！！！

#include<iostream>using namespace std;int main(){int t;scanf("%d", &t);while(t--){int i, j, k;int a, b, count = 0;scanf("%d%d", &a, &b);for( i=0; i <= b; i++ ){for( j=0; j <= b/2; j++ ){for( k=0; k <= b/5; k++ ){if(i + j*2 + k*5 == b && i + j + k == a)count++;}}}printf("%d\n", count);}return 0;}