Checksum Validation

Code

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

int validate_checksum(int *mem, int n) {
    // Write your XOR scan logic here
    uint8_t checksum = *(mem + n-1);
    uint8_t xor_value = 0;
    uint8_t return_value = 0;

    for (uint32_t i = 0; i < n-1; i++) {
        xor_value ^= *(mem + i);
    }

    if (xor_value == checksum) {
        return_value = 1;
    }

    return return_value;
}

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