#include<iostream> #include<cstdio> using namespace std; int main(){ printf("%.3lf\n",(5+8+12)/(3*1.0)); cout<<"购买香蕉"<<39/5<<"剩余"<<39%5<<endl; cout<<"购买苹果"<<39/8<<"剩余"<<39%8<<endl; cout<<"购买葡萄"<<39/12<<"剩余"<<39%12<<endl; return 0; }