red:11
black:17
white:14
-->
<html>
<body>
<script type="text/javascript">
for(var red=0red<=25red++)
{
var white=25-red,black=28-red
if(31==white+black)
{
alert("red:"+red+"\n"+"black:"+black+"\n"+"white:"+white)
}
}
</script>
</body>
</html>
for(int i = 1 i<= 3 i++)for(int j = 1 j<= 5 j++)
for(int k = 1 k<=6 k++)
if(i+j+k == 8)
printf("红球%d个,白球%d个,黑球%d个",i,j,k)