max in c++

// C++ program to demonstrate the use of std::max 
// C++ program to demonstrate the use of std::max 
#include<iostream> 
#include<algorithm> 
using namespace std; 
int main() 
{ 
    // Comparing ASCII values of a and b 
    cout << std::max('a','b') << "\n"; 
  
    // Returns the first one if both the numbers 
    // are same 
    cout << std::max(7,7); 
  
return 0; 
}