简单 用函数直接写

#include<iostream>
using namespace std;
int max_value(int a,int b){
return max(a,b);
}
int min_value(int a,int b){
return min(a,b);
}

int main() {

int a, b;
cin >> a >> b;
cout << "max=" << max_value(a, b) << endl;
cout << "min=" << min_value(a, b) << endl; 

return 0;
}