Write a C program to rotate an array left by n places.
#include <stdio.h>
#define MAX 256
int main() {
int i, j, n, tmp, shift, data[MAX];
/* get the number of array entries from the user */
printf("Enter the number of elements in input array:");
scanf("%d", &n);
/* get the array entries from the user */
printf("Enter your array entries:\n");
for (i = 0; i < n; i++) {
printf("Data[%d]: ", i);
scanf("%d", &data[i]);
}
/* get the rotation input */
printf("Rotate the array elements left by ");
scanf("%d", &shift);
/* rotate an array left by given(shift) places */
for (i = 0; i < shift; i++) {
tmp = data[0];
for (j = 1; j <= n - 1; j++) {
data[j - 1] = data[j];
}
data[n - 1] = tmp;
}
/* print the resulatant array */
printf("Resultant array:\n");
for (i = 0; i < n; i++) {
printf("%d ", data[i]);
}
#define MAX 256
int main() {
int i, j, n, tmp, shift, data[MAX];
/* get the number of array entries from the user */
printf("Enter the number of elements in input array:");
scanf("%d", &n);
/* get the array entries from the user */
printf("Enter your array entries:\n");
for (i = 0; i < n; i++) {
printf("Data[%d]: ", i);
scanf("%d", &data[i]);
}
/* get the rotation input */
printf("Rotate the array elements left by ");
scanf("%d", &shift);
/* rotate an array left by given(shift) places */
for (i = 0; i < shift; i++) {
tmp = data[0];
for (j = 1; j <= n - 1; j++) {
data[j - 1] = data[j];
}
data[n - 1] = tmp;
}
/* print the resulatant array */
printf("Resultant array:\n");
for (i = 0; i < n; i++) {
printf("%d ", data[i]);
}
printf("\n");
return 0;
}
Output:
jp@jp-VirtualBox:~/$ ./a.out
Enter the number of elements in input array:5
Enter your array entries:
Data[0]: 10
Data[1]: 20
Data[2]: 30
Data[3]: 50
Data[4]: 40
Rotate the array elements left by 3
Resultant array:
50 40 10 20 30
Enter the number of elements in input array:5
Enter your array entries:
Data[0]: 10
Data[1]: 20
Data[2]: 30
Data[3]: 50
Data[4]: 40
Rotate the array elements left by 3
Resultant array:
50 40 10 20 30
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ReplyDeleteComes garbage value....
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