Sort in C++ Standard Template Library (STL)

Here we will see how to use the sort() function of C++ STL to sort an array So if the array is like A = [52, 14, 85, 63, 99, 54, 21], then the output will be [14 21 52 54 63 85 99]. To sort we will use the sort() function, that is present in the header file <algorithm>. The code is like below −

Example

 Live Demo

#include <iostream> #include <algorithm> using namespace std; int main() {    int arr[] = {52, 14, 85, 63, 99, 54, 21};    int n = sizeof(arr) / sizeof(arr[0]);    cout << "Array before sorting: ";    for (int i = 0; i < n; i++)       cout << arr[i] << " ";    sort(arr, arr + n);    cout << "\nArray after sorting: ";    for (int i = 0; i < n; i++)       cout << arr[i] << " "; }

Output

Array before sorting: 52 14 85 63 99 54 21 Array after sorting: 14 21 52 54 63 85 99