sort array in descending order in c++ code example

Example 1: how to sort in descending order c++

int arr[10];
int length = sizeof(arr)/sizeof(arr[0]); 
sort(arr, arr+length, greater<int>());

Example 2: sort in descending order c++ stl

sort(arr, arr + n, greater<int>())

Example 3: how to sort in descending order in c++

sort(str.begin(), str.end(), greater<int>());
cout<<str;