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

Code Example 1

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

Code Example 2

``````// 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 3

``````#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 */``````

Code Example 4

``````// C++ program to demonstrate descending order sort using
// greater<>().
#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, greater<int>());

cout << "Array after sorting : \n";
for (int i = 0; i < n; ++i)
cout << arr[i] << " ";

return 0;
}``````

Code Example 5

``````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 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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