is_sorted() in C++

is_sorted(): This function is available in the file stl_algo.h. This function determines whether the elements of a sequence are sorted. This function returns true if the elements are sorted, false otherwise. 

Parameters: Two parameters are required for this function.

 __first – An iterator.

 __last – Another iterator.

Syntax:

is_sorted(__first, __last)

For Example:

arr = {1,4,6,8,10}

is_sorted(arr.begin(), arr.end()) = > It return true (1) because the given sequence is sorted.

Approach

C++

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

int main()
{
    vector<int> arr = {1, 4, 6, 8, 10};

    cout << is_sorted(arr.begin(), arr.end()) << "\n";

    return 0;
}