#include<iostream> // cin\cout\endl using namespace std; int main(){ int xiangjiao=5,pinguo=8,putao=12; printf("%.3lf\n",(xiangjiao+pinguo+putao)/3.0); cout<<39/xiangjiao<<" "<<39%xiangjiao<<endl; cout<<39/pinguo<<" "<<39%pinguo<<endl; cout<<39/putao<<" "<<39%putao<<endl; return 0; }