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input/code.cpp: In function 'long int solve(const std::vector<Rinne>&, int)':
input/code.cpp:15:14: warning: unused variable 'i' [-Wunused-variable]
   15 |     for (int i : rinteet[rinne].rinteet) {
      |              ^

#include <iostream>
#include <vector>

#define PER long int

struct Rinne
{
    PER amount;
    std::vector<int> rinteet;
};


PER solve(const std::vector<Rinne>& rinteet, int rinne) {
    PER sum = 0;
    for (int i : rinteet[rinne].rinteet) {
        sum += 1;
    }
    return (rinteet[rinne].amount > sum ? rinteet[rinne].amount : sum);
}


int main() {
    std::vector<Rinne> rinteet;
    rinteet.push_back({0, {}});

    int amount;
    std::cin >> amount;

    int a, b;
    for (int i = 0; i < amount-1; i++) {
        std::cin >> a >> b;
        rinteet.push_back({0, {}});
        rinteet[a-1].rinteet.push_back(b-1);
    }
    for (int i = 0; i < amount; i++) {
        std::cin >> a;
        rinteet[i].amount = a;
    }

    std::cout << solve(rinteet, 0);
    return 0;
}

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

Test 2

Group: 1, 2

Verdict: RUNTIME ERROR

Test 3

Group: 1, 2

Verdict: RUNTIME ERROR

malloc(): corrupted top size

Test 4

Group: 2

Verdict: RUNTIME ERROR

Test 5

Group: 2

Verdict: RUNTIME ERROR

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Test 7

Group: 2

Verdict: RUNTIME ERROR

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