杭电------2048神上帝以及老天爷（C语言写）

#include<stdio.h>
long long a[] = { -,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,-,- };
long long b[] = {  };
long long jiecheng(int n) {
    if (b[n]>) {
        return b[n];
    }
    return b[n] = jiecheng(n - )*n;
}
long long recrusion(int n) {
    if (a[n] > -)
        return a[n];
    return a[n] = (n - )*(recrusion(n - ) + recrusion(n - ));
}

int main() {
    int n, m;
    int i;
    b[] = ;
    b[] = ;
    a[] = ;
    a[] = ;
    double x;
    scanf("%d", &n);
    for (i = ; i < n; i++) {
        scanf("%d", &m);
        x = (double)recrusion(m) / (double)jiecheng(m);
        printf("%.2lf%%\n", x * );
    }
    return ;
}（m大于7时概率不再变化）