Rotate in cpp

vector<int> v{1,2,3,4,5,6,7,8,9};

int rot = 2;
//rotate left
rotate(v.begin(), v.begin() + rot, v.end()); //vector: 3 4 5 6 7 8 9 1 2
//rotate right
rotate(v.begin(), v.begin()+v.size()-rot, v.end()); //vector: 8 9 1 2 3 4 5 6 7

Rotate in cpp

#include<iostream>
using namespace std;
void leftRotateByOne(int arr[], int n)
{
	int temp = arr[0];
	for (int i = 0; i < n - 1; i++)
	{
		arr[i] = arr[i + 1];
	}
	arr[n - 1] = temp;
}
void leftRotate(int arr[], int d, int n)
{
	for (int i = 0; i < d; i++)
	{
		leftRotateByOne(arr,n);
	}
}
void print(int arr[],int n)
{
	for (int i = 0; i < n; i++)
	{
		cout << arr[i] << " ";
	}
	cout << endl;
}
void main()
{
	int arr[] = { 1,2,3,4,5,6,7 };
	int n = sizeof(arr) / sizeof(arr[0]);
	// function calling.
	leftRotate(arr, 2, n);
	print(arr, n);
}

Source: codejudge.blogspot.com

Similar codes

0 vote287 views1 answer
Runtime error(Exit status:153(File size limit exceeded)) c++
C++
7 votes281 views2 answers
Round function in c++
C++
0 vote315 views1 answer
How to initialize 2d array with values c++
C++
1 vote315 views1 answer
Class Solution { public: vector<vector<int>> threeSum(vector<int>& nums) meaning
C++
2 votes277 views1 answer
Std string to const char * c++
C++
3 votes256 views2 answers
C++ get data type
C++
0 vote300 views1 answer
Switch cout print with a prameter c++
C++
0 vote272 views1 answer
C++ thread incide class
C++
0 vote314 views1 answer
Qt file explorer
C++
0 vote278 views1 answer
Play sound opencv video c++
C++