c++ reverse code example

Example 1: c++ reverse vector

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

int main()
{
    vector<int> nums{4,1,2,1,2};

    reverse(nums.begin(), nums.end());
    return 0;
}

Example 2: reverse an array in cpp

#include<iostream>
using namespace std;
int main()
{   
     int n=3;
     int arr[]={1,2,3,4};
      while (n>=0)
    {
        cout<<arr[n];
        n--;
      }
         
    return 0;
}

Example 3: c++ reverse array

int arr[5] = {1, 2, 3, 4, 5}; //Initialize array

for(int i = 0; i < size(arr); i++) {
	//Create temporary variable to hold current value in array
	int temp = arr[i];
	//Set the current value in the array to the mirrored value in array
	arr[i] = arr[size(arr) - 1 - i];
	//Set mirrored value in array to temp, swapping the two numbers
	arr[size(arr) - 1 - i] = temp;
}

Example 4: std::reverse

std::vector<int> v{1,2,3};
    std::reverse(std::begin(v), std::end(v));

Example 5: reverse c++

reverse(str.begin(),str.end());

Example 6: reverse() in c++

#include <iostream>
#include <algorithm>
#include <vector>
#include <iterator>
using namespace std;
int main()
{
    vector<int>a = {11,22,33,44,99,55};
    reverse(a.begin(), a.end());
    auto it = a.begin();
    for(it= a.begin(); it!=a.end(); it++){
        cout << *it << ' ';    
    }
}