Question

How to shift array elements to left by one position from specific index in C

Answer 1

#include <stdio.h>

void ShiftArrayToLeftFromIndex(int arr[], int size, int index) {
    int temp = arr[0];

    for (int i = 0; i < index; i++) {
        arr[i] = arr[i + 1];
    }

    arr[index] = temp;
}

int main()
{
    int arr[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

    int size = sizeof(arr) / sizeof(arr[0]);

    int index = 5;

    ShiftArrayToLeftFromIndex(arr, size, index);

    for (int i = 0; i < size; i++)
        printf("%d ", arr[i]);

    return 0;
}




/*
run:

2 3 4 5 6 1 7 8 9

*/

 

70+ SQL courses for beginners and professionals