3.12.cpp

c程序设计技巧, c入门和简单算法设计。

#include<stdio.h>
int main()
{
    int i,k,n,t;
    long w1,w2;
    printf ("Input the number of boxes:");
    scanf("%d",&n);
    t=1;
    w1=0;
    for(i=1;i<=n;i++)
    {
                     printf("%d box take %d units.\n",i,t);
                     w1+=t;
                     t+=t;
                     }
                     w1*=100;
                     printf("Normal weight is:%d\n",w1);
                     printf("Input reality weight\n");
                     scanf("%d",&w2);
                     w1=(w1-w2)/10;
                     while(w1!=0)
                     {
                                 k=0;t=1;
                                 while(w1-t>=0)
                                 {
                                              t=t*2;
                                              k=k+1;
                                 }
                                              printf("%d box is bad.\n",k);
                                              w1=w1-t/2;
                                              
                        }
                        scanf("%d",&n);
                        return 0;
}