Checksum Validation

Code

#include <stdio.h>
#include <stdint.h>

int validate_checksum(int *mem, int n) {
    // Write your XOR scan logic here
    if ((n < 2) || (mem == NULL) || (n > 100)) {
        return 0;
    } 

    int result = 0;
    int check_sum =0;

    for (int i = 0; i < (n-1); i++) {
        check_sum ^= mem[i];
    }

    if (check_sum == mem[n-1]) {
        result = 1;
    } else {
        result = 0;
    } 
    return result;
}

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

    int result = validate_checksum(arr, n);
    printf("%d", result);

    return 0;
}

Solving Approach