reverse 28 29 in c 2b 2b

1#include <bits/stdc++.h> // Vector
2#include <algorithm>  // Reverse 
3using namespace std;
4
5int main()
6{
7    vector<int> nums{4,1,2,1,2};
8
9    reverse(nums.begin(), nums.end());
10    return 0;
11}
12

1#include <iostream>
2using namespace std;
3int main()
4{		// While loop
5	const int SIZE = 9;
6	int arr [SIZE];
7	cout << "Enter numbers: \n";
8	for (int i = 0; i < SIZE; i++)
9		cin >> arr[i];
10	for (int i = 0; i < SIZE; i++)
11		cout << arr[i] << "\t";
12	cout << endl;
13	cout << "Reversed Array:\n";
14	int temp, start = 0, end = SIZE-1;
15	while (start < end)
16	{
17		temp = arr[start];
18		arr[start] = arr[end];
19		arr[end] = temp;
20		start++;
21		end--;
22	}
23	for (int i = 0; i < SIZE; i++)
24		cout << arr[i] << "\t";
25	cout << endl;	
26  	return 0;
27}
28

1#include <iostream>
2#include <algorithm>
3#include <vector>
4#include <iterator>
5using namespace std;
6int main()
7{
8    vector<int>a = {11,22,33,44,99,55};
9    reverse(a.begin(), a.end());
10    auto it = a.begin();
11    for(it= a.begin(); it!=a.end(); it++){
12        cout << *it << ' ';    
13    }
14}
15

1#include <iostream>
2using namespace std;
3int main()
4{
5	const int SIZE = 9;
6	int arr [SIZE];
7	cout << "Enter numbers: \n";
8	for (int i = 0; i < SIZE; i++)
9		cin >> arr[i];
10	for (int i = 0; i < SIZE; i++)
11		cout << arr[i] << "\t";
12	cout << endl;
13	cout << "Reversed Array:\n";
14	int end = SIZE - 1, temp;
15	for (int i = 0; i < end; i++)
16	{
17		temp = arr[i];
18		arr[i] = arr[end];
19		arr[end] = temp;
20		end--;
21	}
22	/*	Reverse using while loop
23	int temp, start = 0, end = SIZE-1;
24	while (start < end)
25	{
26		temp = arr[start];
27		arr[start] = arr[end];
28		arr[end] = temp;
29		start++;
30		end--;
31	}*/
32	for (int i = 0; i < SIZE; i++)
33		cout << arr[i] << "\t";
34	cout << endl;	
35	}
36

1vector<int> a = {1,2,3,4,5,6};
2reverse(a.begin(), a.end());

1//Reverse vector partially (from index x to index y)
2reverse(v.begin()+x, v.begin()+y+1);