Check out example codes for "sort in descending order c++ stl". It will help you in understanding the concepts better.

Code Example 1

// C++ program to demonstrate default behaviour of 
// sort() in STL. 
#include <bits/stdc++.h> 
using namespace std; 
  
int main() 
{ 
    int arr[] = {1, 5, 8, 9, 6, 7, 3, 4, 2, 0}; 
    int n = sizeof(arr)/sizeof(arr[0]); 
  
    sort(arr, arr+n); 
  
    cout << "\nArray after sorting using "
         "default sort is : \n"; 
    for (int i = 0; i < n; ++i) 
        cout << arr[i] << " "; 
  
    return 0; 
}

Code Example 2

// A C++ program to demonstrate STL sort() using 
// our own comparator 
#include<bits/stdc++.h> 
using namespace std; 
  
// An interval has a start time and end time 
struct Interval 
{ 
    int start, end; 
}; 
  
// Compares two intervals according to staring times. 
bool compareInterval(Interval i1, Interval i2) 
{ 
    return (i1.start < i2.start); 
} 
  
int main() 
{ 
    Interval arr[] =  { {6,8}, {1,9}, {2,4}, {4,7} }; 
    int n = sizeof(arr)/sizeof(arr[0]); 
  
    // sort the intervals in increasing order of 
    // start time 
    sort(arr, arr+n, compareInterval); 
  
    cout << "Intervals sorted by start time : \n"; 
    for (int i=0; i<n; i++) 
       cout << "[" << arr[i].start << "," << arr[i].end 
            << "] "; 
  
    return 0; 
}

Code Example 3

sort(arr, arr + n, greater<int>())

Code Example 4

sort(arr, arr+n); 
sort(arr, arr+n, greater<int>()); // In Descending Order

Code Example 5

int arr[10];
int length = sizeof(arr)/sizeof(arr[0]); 
sort(arr, arr+length, greater<int>());

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