Checksum Validation

Code

#include <stdio.h>

int validate_checksum(int *mem, int n) {
    // Write your XOR scan logic here
    if(mem != NULL)
    {
        int crc_check = mem[n-1];
        int crc_cal = 0;
        for(int i = 0; i < n-1; i++)
        {
            crc_cal ^= mem[i];
        }
        if(crc_cal == crc_check)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
    return 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