
/*换钱问题 一毛 两毛 五毛*/
#include<stdio.h>
void main()
{
int x,y,z,i=0;
for ( x=1; x<100; x++ )
for ( y=1; y<50; y++ )
for ( z=1; z<20; z++ )
if ( x+2*y+5*z==100 )
{
i++;
printf ( "第%d种:%d个1角 %d个2角 %d个5角\n ",i,x,y,z );
}
printf ( "共有%d种换法!\n",i );
}


