Checksum Validation

#include <stdio.h>

int validate_checksum(int *mem, int n) {
    if (n < 2) {
        return 0;
    }
    int check = mem[0];
    for (int i = 1; i < (n-1); i++) {
        check ^= mem[i];
    }
    return (check == mem[n-1]) ? 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

added test to handle case when no data given.