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input/code.cpp: In function 'int main()':
input/code.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   for(int i = 0; i < numbers.size(); i++){
      |                  ~~^~~~~~~~~~~~~~~~

#include <iostream>
#include <vector>
using namespace std;

int main() {
  int rinteet;
  cin >> rinteet;

  vector<int> a;
  vector<int> b;
  for(int i = 0; rinteet - 1 > i; i++){
    int T_a, T_b;
    cin >> T_a >> T_b;
    a.push_back(T_a);
    b.push_back(T_b);
  }

  vector<int> numbers(rinteet);
  for(int i = 0; i < numbers.size(); i++){
    cin >> numbers[i];
  }

  int len=0;
  for(int i = 0; rinteet > i; i++){
    if(a[i]==1){
      len += numbers[i+1];
    }
  }
  cout << len;
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: WRONG ANSWER

Test 4

Group: 2

Verdict: WRONG ANSWER

Test 5

Group: 2

Verdict: WRONG ANSWER

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 1, 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 1, 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: WRONG ANSWER

Test 12

Group: 1, 2

Verdict: WRONG ANSWER

Test 13

Group: 2

Verdict: WRONG ANSWER