``````// 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;
}
#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;

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

``````