Checksum Validation

#include <stdio.h>

int validate_checksum(int *mem, int n) {   
   int sum=0;
    for(int i = 0 ; i < n-1 ; i++){
        sum = sum ^ mem[i];
    }
    //printf("%d\n%d\n",sum,mem[n-1]);
    if(sum == mem[n-1]){
    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