Apple Division

input/code.cpp: In function 'int main()':
input/code.cpp:41:29: warning: 'sum' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |         res = min(abs(((int)(float)sum/2)*2-curSum), res);
      |                             ^~~~~~~~~~

#include <bits/stdc++.h>
using namespace std;
#define ln "\n"
typedef long long ll;
#define fastio ios_base::sync_with_stdio(false), cin.tie(NULL)


vector<int> subset;
vector<int> weights;



int main() {

    int n;
    int sum;
    cin >> n;
    
    for(int i = 0; i <n; i++){
        int a;
        cin >> a;
        weights.push_back(a);
        sum+= a;
    }

    int res = 1e9;

    for (int b = 0; b < (1<<n); b++){

        int curSum = 0;

        vector<int> subset;
        for(int i = 0; i < n; i++){
           if (b&(1<<i)){
            subset.push_back(weights[i]);
            curSum += weights[i];
           }
           
        }

        res = min(abs(((int)(float)sum/2)*2-curSum), res);
        

    }

    cout << res << ln;



    return 0;
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: ACCEPTED

Test 14

Verdict: WRONG ANSWER

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: WRONG ANSWER

Test 18

Verdict: WRONG ANSWER