Differences

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
 
int a[1010101];
int b[1010101];
 
int main() {
   int n;
   cin >> n;
   for (int i = 0; i < n; i++) {
        cin >> a[i];
   }
   for (int i = 0; i < n; i++) {
        cin >> b[i];
   }
   sort(a,a+n);
   sort(b,b+n);
   int ans = 0;
   for (int i = 0; i < n; i++) {
       ans += abs(a[i]-b[i]);
   }
   cout << ans << endl;
}

Test 1

Verdict: WRONG ANSWER