试题系列四(袋中有6红球 3黄球 3绿球，从中取6个球，求所有拿到球的颜色的可能 c(12,6))

 1 #include<stdio.h>
 2 
 3 int main(int argc, char** argv)
 4 {
 5     int red = 6;
 6     int yellow = 3;
 7     int green = 3;
 8     int i = 0;
 9     int j = 0;
10 
11     for ( i = 0; i <= yellow; i++)
12     {
13         for (j = 0; j <= green; j++)    
14         {
15             //if ()    
16             printf("red:%d, yellow:%d, green:%d\n", (6-i-j), i, j);
17         }
18     }
19 
20 }