Reverse an Array In-Place

Code

#include <stdio.h>

void reverse_array(int arr[], int n) {
    // Your logic here
    int temp;
    for(int i = 0; i< n/2 ; i++){
    temp = arr[i];
    arr[i] = arr[n-1-i];
    arr[n-i-1] = temp;
}


int main() {
    int n;
    scanf("%d", &n);

    int arr[100];
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    reverse_array(arr, n);

    for (int i = 0; i < n; i++) {
        printf("%d", arr[i]);
        if(i < n-1){
        	printf(" ");
        }
    }
    return 0;
}

Solving Approach

Avoided using while loop with left and right pointer 

used lesser variables

Compecity O(n/2) O(n)