Checksum Validation

Code

#include <stdio.h>

int validate_checksum(int *mem, int n) {
    
    int* start = mem;
    int* end = mem + (n - 1);

    int checkByte = *start++;
    for(; start < end; start++) {
        checkByte ^= *start;
    }

    return (checkByte == *end) ? 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