Checksum Validation

Code

#include <stdio.h>

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

Use a variable to track the XOR of all elements except the last checksum, and use conditional loop to return the value.