sorting an array in C++ code example

Example 1: stl for sorting IN C++

// STL IN C++ FOR SORING
#include <bits/stdc++.h> 
#include <iostream> 
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);  // ASCENDING SORT
    reverse(arr,arr+n);   //REVERESE ARRAY 
    sort(arr, arr + n, greater<int>());// DESCENDING SORT
  }

Example 2: how to sort an array in c++

#include <bits/stdc++.h> 
using namespace std; 

#define size(arr) sizeof(arr)/sizeof(arr[0]);


int main(){

    int a[5] = {5, 2, 6,3 ,5};
    int n = size(a);
    sort((a), a + n);
    for(int i = 0; i < n; i++){
        cout << a[i];
    }


    return 0;

}

Example 3: stl sort in c++

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

Example 4: array sort c++

#include <iostream>
2 #include <array>
3 #include <string>
4 #include <algorithm>
5
6 using namespace std;
7
8 int main(){
9 array<string, 4> colours = {"blue", "black", "red", "green"};
10 for (string colour : colours){
11 cout << colour << ' ';
12 }
13 cout << endl;
14 sort(colours.begin(), colours.end());
15 for (string colour : colours){
16 cout << colour << ' ';
17 }
18 return 0;
19 }
66
20
21 /*
22 Output:
23 blue black red green
24 black blue green red
25 */

Example 5: stl sort in c++

sort(arr, arr+n, greater<int>()); // sorts in descending order