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Array Rotate in c++

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coder answered on October 20, 2021 Popularity 9/10 Helpfulness 3/10

answer Array Rotate in c++

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Array Rotate in c++

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#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);
}

Popularity 9/10 Helpfulness 3/10 Language cpp

Source: codejudge.blogspot.com

Tags: c++

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Contributed on Jan 19 2022

coder

0 Answers Avg Quality 2/10

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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

Popularity 9/10 Helpfulness 7/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Oct 20 2021

BreadCode

0 Answers Avg Quality 2/10

rotate array cpp

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###############################
# Rotate array clockwise
###############################

vector<int> kClockwiseRotate(vector<int> a, int k) {
    int n = a.size() - 1;
  
    while (k != 0) {
      int x = a[n];
      
      for (int i = n; i >= 0; i--) {
        a[i + 1] = a[i];
        a[i] = x;
      }
      k--;
    }
    return a;
  }

###############################
# Rotate array anti-clockwise
###############################

vector<int> kAntiClockwiseRotate(vector<int> a, int k) {
    int n = a.size() - 1;
  
    while (k != 0) { 
	 for (int i = 0; i < n; i++) {
      int x = a[i + 1];
      a[i + 1] = a[i];
      a[i] = x;
    }
      k--;
    }
    return a;
 }

Popularity 9/10 Helpfulness 4/10 Language cpp

Source: Grepper

Tags: c++

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Contributed on Dec 29 2021

paramjeetdhiman

0 Answers Avg Quality 2/10

rotate in cpp

Comment

#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);
}

Popularity 9/10 Helpfulness 4/10 Language cpp

Source: codejudge.blogspot.com

Tags: c++

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Contributed on Jan 22 2022

coder

0 Answers Avg Quality 2/10

Array Rotate in c++

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