Checksum Validation

#include <stdio.h>

int validate_checksum(int *mem, int n) {
    int re=0;
 for(int i=0;i<n;i++){
 re^=*(mem+i);
 }
 if (re==*(mem+n)){
 return 1;
  }else{
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