C program to left rotate an array; Through this tutorial, we will learn how to left rotate an array using standard method and function in c programs.
Programs To Left Rotate An Array in C
Use the following program to left rotate an array using standard method and function in c:
- C Program To Left Rotate An Array using Standard Method
- C Program To Left Rotate An Array using Function
C Program To Left Rotate An Array using Standard Method
#include <stdio.h>
int main()
{
int a[10000],i,n,j,k,temp;
printf("Enter size of the array : ");
scanf("%d", &n);
printf("Enter elements in array : ");
for(i=0; i<n; i++)
{
scanf("%d",&a[i]);
}
printf("how many times left rotate : ");
scanf("%d", &k);
for(i=0; i<k; i++)
{
temp=a[0];
for(j=0; j<n-1; j++)
{
a[j]=a[j+1];
}
a[n-1]=temp;
}
printf("\narray elements after left rotate : ");
for(i=0; i<n; i++)
{
printf("%d ",a[i]);
}
}
The output of the above c program; as follows:
Enter size of the array : 5 Enter elements in array : 1 2 34 5 4 how many times left rotate : 2 array elements after left rotate : 34 5 4 1 2
C Program To Left Rotate An Array using Function
#include <stdio.h>
int leftrotate(int *a,int n,int k)
{
int i,j,temp;
for(i=0; i<k; i++)
{
temp=a[0];
for(j=0; j<n-1; j++)
{
a[j]=a[j+1];
}
a[n-1]=temp;
}
}
print(int *a,int n)
{
int i;
for(i=0; i<n; i++)
{
printf("%d ",a[i]);
}
}
int main()
{
int a[10000],i,n,j,k,temp;
printf("Enter size of the array : ");
scanf("%d", &n);
printf("Enter elements in array : ");
for(i=0; i<n; i++)
{
scanf("%d",&a[i]);
}
printf("how many times left rotate : ");
scanf("%d", &k);
leftrotate(a,n,k);
printf("\narray elements after left rotate : ");
print(a,n);
}
The output of the above c program; as follows:
Enter size of the array : 5 Enter elements in array : 45 25 62 47 58 how many times left rotate : 3 array elements after left rotate : 47 58 45 25 62
