Reverse an Array In-Place

Code

#include <stdio.h>

void reverse_array(int arr[], int n) {
    // Your logic here
    int start = 0;
    int end = n-1;
    int tmp = 0;
    while(start<end){
        tmp = arr[start];
        // printf("arr[%d]: %d\n",j, arr[j]);
        arr[start] = arr[end];
        arr[end] = tmp;
        // printf("arr[%d]: %d\n",j, arr[j]);
        ++start;
        --end;
    }
}

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