Check out example codes for "max in c++". It will help you in understanding the concepts better.

Code Example 1

// 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; 
} 

Code Example 2

int main() 
{ 
    // Get the vector 
    vector<int> a = { 1, 45, 54, 71, 76, 12 }; 
  
    // Print the vector 
    cout << "Vector: "; 
    for (int i = 0; i < a.size(); i++) 
        cout << a[i] << " "; 
    cout << endl; 
  
    // Find the max element 
    cout << "\nMax Element = "
         << *max_element(a.begin(), a.end()); 
    return 0; 
}

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