读书-算法《程序设计导引及在线实践》-简单计算题5：装箱问题

#include <stdio.h>
void main()
{
    int N, a, b, c, d, e, f, y, x;
    int u[4] = {0, 5, 3, 1};

    scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f);
    if (0 == a || b || c || d || e || f)
    {
        return;
    }

    N = f + e + d + (c + 3)/4;

    y = 5*d + u[c%4];
    if(b > y)
    {
        N += (b - y + 8)/9;
    }
    
    x = 36*N - 36*f -25*e - 16*d - 9*c - 4*b;
    if(a > x)
    {
        N += (a - x + 35)/36;
    }
    printf("%d\n", N);
}