cpp reverse code example
Example 1: c++ reverse vector
#include <bits/stdc++.h>
#include <algorithm>
using namespace std;
int main()
{
vector<int> nums{4,1,2,1,2};
reverse(nums.begin(), nums.end());
return 0;
}
Example 2: c++ reverse array
int arr[5] = {1, 2, 3, 4, 5};
for(int i = 0; i < size(arr); i++) {
int temp = arr[i];
arr[i] = arr[size(arr) - 1 - i];
arr[size(arr) - 1 - i] = temp;
}
Example 3: std::reverse
std::vector<int> v{1,2,3};
std::reverse(std::begin(v), std::end(v));
Example 4: reverse c++
reverse(str.begin(),str.end());