Check out example codes for "c++ sort". 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

// C++ program to sort a vector in non-decreasing 
// order. 
#include <algorithm> //Sort
#include <bits/stdc++.h> 
using namespace std; 
  
int main() 
{ 
    vector<int> v{ 1, 5, 8, 9, 6, 7, 3, 4, 2, 0 }; 
  
    sort(v.begin(), v.end()); 
  
    return 0; 
}

Code Example 3

int arr[]= {2,3,5,6,1,2,3,6,10,100,200,0,-10};
    int n = sizeof(arr)/sizeof(int);  
    sort(arr,arr+n);

    for(int i: arr)
    {
        cout << i << " ";
    }

Code Example 4

// A C++ program to sort vector using 
// our own comparator 
#include <bits/stdc++.h> 
using namespace std; 
  
// An interval has 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() 
{ 
    vector<Interval> v { { 6, 8 }, { 1, 9 }, { 2, 4 }, { 4, 7 } }; 
  
    // sort the intervals in increasing order of 
    // start time 
    sort(v.begin(), v.end(), compareInterval); 
  
    cout << "Intervals sorted by start time : \n"; 
    for (auto x : v) 
        cout << "[" << x.start << ", " << x.end << "] "; 
  
    return 0; 
}

Code Example 5

sort(arr, arr+n); // sorts in ascending order

Code Example 6

// 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; 
}

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