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C++ program to print the left Rotation of the array

In this example, we will see a C++ program through which we can print the left rotation of the array.

In this program, we can shift all the elements d times but this is a time-consuming process. So we can use a small trick here to print the elements of the array after left rotating d elements.

Program:


#include <iostream>
using namespace std;
int main()
{
int n,d;
//input value of n and d
cout<<"Enter the value of n and d"<<endl;
cin>>n>>d;
int a[n];
//input array elements
cout<<"enter the array elements : ";
for(int i=0;i<n;i++)
{
cin<<a[i];
}
//print the elements of array after rotation
cout<<"array elements after rotation : ";
for(int i=0;i<n;i++)
{
cout<<a[(i+d)%n]<<" ";
}
return 0;
}

Output:
Enter the value of n and d
7
3
enter the array elements : 38
82
83
94
18
28
43
array elements after rotation : 94 18 28 43 38 82 83

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