Checksum Validation

Code

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

int validate_checksum(int *mem, int n) {
    if(mem == 0 || n < 2U)
    {
        return 0;
    }

    uint8_t xor_sum = 0U;
    size_t i;

    for (size_t i = 0U; i < n -1U; i++)
    {
        xor_sum ^= mem[i];
    }
    return (xor_sum == mem[n -1U]) ? 1: 0;
}

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