hdu 2069

#include "stdio.h"
int main(){
    int num,i1,i2,i3,i4,i5,n;
    int n1,n2,n3,n4,n5;
    while(~scanf("%d",&num)){
        n1=num/50;
        n2=num/25;
        n3=num/10;
        n4=num/5;
        n5=num;
        n=0;
        for(i1=0;i1<=n1;i1++){
            for(i2=0;i2<=n2;i2++){
                for(i3=0;i3<=n3;i3++){
                    for(i4=0;i4<=n4;i4++){
                        for(i5=0;i5<=n5;i5++){
                            if(i1*50+i2*25+i3*10+i4*5+i5==num && (i1+i2+i3+i4+i5)<=100){
                               n++;break;
                            }
                        }
                    }
                }
            }
        }
        printf("%d\n",n);
    }
    return 0;
}

ps:用了五个for,,暴力破解..差点就超出时间,还是用的G++过了...

代码：