HDU_2082 找单词 (生成函数)

　　很裸的生成函数：

My Code:

#include <iostream>
#include <cstring>
#include <cstdio>

using namespace std;

const int N = 100;

int c1[N], c2[N];
int val[N];

int main() {
    //freopen("data.in", "r", stdin);

    int i, j, k, t, ans;
    while(~scanf("%d", &t)) {
        while(t--) {
            for(i = 1; i <= 26; i++)
                scanf("%d", &val[i]);
            memset(c1, 0, sizeof(c1));
            memset(c2, 0, sizeof(c2));
            for(i = 0; i <= 50 && i <= val[1]; i++) {
                c1[i] = 1;
            }
            for(i = 2; i <= 26; i++) {
                for(j = 0; j <= 50; j++) {
                    for(k = 0; k + j <= 50 && k <= i*val[i]; k += i) {
                        c2[j + k] += c1[j];
                    }
                }
                for(j = 0; j <= 50; j++) {
                    c1[j] = c2[j]; c2[j] = 0;
                }
            }
            for(ans = 0, i = 1; i <= 50; i++) {
                ans += c1[i];
            }
            cout << ans << endl;
        }
    }
    return 0;
}