reverse() in c++

#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;
}

3.75
8
LeviK 115 points

                                    #include &lt;iostream&gt;
using namespace std;
int main()
{
	const int SIZE = 9;
	int arr [SIZE];
	cout &lt;&lt; &quot;Enter numbers: \n&quot;;
	for (int i = 0; i &lt; SIZE; i++)
		cin &gt;&gt; arr[i];
	for (int i = 0; i &lt; SIZE; i++)
		cout &lt;&lt; arr[i] &lt;&lt; &quot;\t&quot;;
	cout &lt;&lt; endl;
	cout &lt;&lt; &quot;Reversed Array:\n&quot;;
	int end = SIZE - 1, temp;
	for (int i = 0; i &lt; end; i++)
	{
		temp = arr[i];
		arr[i] = arr[end];
		arr[end] = temp;
		end--;
	}
	/*	Reverse using while loop
	int temp, start = 0, end = SIZE-1;
	while (start &lt; end)
	{
		temp = arr[start];
		arr[start] = arr[end];
		arr[end] = temp;
		start++;
		end--;
	}*/
	for (int i = 0; i &lt; SIZE; i++)
		cout &lt;&lt; arr[i] &lt;&lt; &quot;\t&quot;;
	cout &lt;&lt; endl;	
	}

3.75 (8 Votes)
0
3
2
Tom Wadley 100 points

                                    #include &lt;iostream&gt;
#include &lt;algorithm&gt;
#include &lt;vector&gt;
#include &lt;iterator&gt;
using namespace std;
int main()
{
    vector&lt;int&gt;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 &lt;&lt; *it &lt;&lt; ' ';    
    }
}

3 (2 Votes)
0
3.9
10
Kaleil 85 points

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

3.9 (10 Votes)
0
3.67
6
Gaussler 100 points

                                    #include &lt;iostream&gt;
using namespace std;
int main()
{		// While loop
	const int SIZE = 9;
	int arr [SIZE];
	cout &lt;&lt; &quot;Enter numbers: \n&quot;;
	for (int i = 0; i &lt; SIZE; i++)
		cin &gt;&gt; arr[i];
	for (int i = 0; i &lt; SIZE; i++)
		cout &lt;&lt; arr[i] &lt;&lt; &quot;\t&quot;;
	cout &lt;&lt; endl;
	cout &lt;&lt; &quot;Reversed Array:\n&quot;;
	int temp, start = 0, end = SIZE-1;
	while (start &lt; end)
	{
		temp = arr[start];
		arr[start] = arr[end];
		arr[end] = temp;
		start++;
		end--;
	}
	for (int i = 0; i &lt; SIZE; i++)
		cout &lt;&lt; arr[i] &lt;&lt; &quot;\t&quot;;
	cout &lt;&lt; endl;	
  	return 0;
}

3.67 (6 Votes)
0
4.57
7

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

for(int i = 0; i &lt; 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;
}

4.57 (7 Votes)
0
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