#include <stdio.h>
void main()
{
    int cocks = 0 , hens,  chicks;
    while (cocks <= 19)
    {
         hens = 0;
        while (hens <= 33)
        {
            chicks = 100 - cocks - hens;
            if (5 * cocks + 3 * hens + chicks/3 == 100)
                printf ("%d %d %d\n", cocks, hens, chicks);
            hens++;
        }
        cocks++;
    }
}
这个输出为

如果改成这样的话：
#include <stdio.h>
void main()
{
    int cocks = 0 , hens,  chicks;
    while (cocks <= 19)
    {
         hens = 0;
        while (hens <= 33)
        {
            chicks = 100 - cocks - hens;
            if (5.0 * cocks + 3.0 * hens + chicks/3.0 == 100.0)
                printf ("%d %d %d\n", cocks, hens, chicks);
            hens++;
        }
        cocks++;
    }
}
输出为


我用的是VC++ 企业版；求解！！为什么会这样？

[ 本帖最后由 artofflive 于 2009-10-30 12:40 编辑 ]

了解，扫黄就扫咯。嘻嘻！