Submission #1124064

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124064		math_rabbit_1028	Tree (IOI24_tree)	C++20	Compilation error	0 ms	0 KiB

tree

#include "tree.h"
#include <queue>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;

int n;
int par[202020];
vector<int> child[202020];
ll w[202020];

void init(vector<int> P, vector<int> W) {
    n = (int)P.size();
    for (int i = 0; i < n; i++) {
        par[i] = P[i];
        child[par[i]].push_back(i);
    }
    for (int i = 0; i < n; i++) w[i] = W[i];
}

ll dp[202020], sum[202020];

typedef priority_queue<pll, vector<pll>, greater<pll>> pq;

pq solve(int v, ll L, ll R) {
    pq plus;
    if (child[v].size() == 0) {
        dp[v] += L * w[v];
        sum[v] = L;
        return plus;
    }
    for (int u : child[v]) {
        pq t = solve(u, L, R);
        if (plus.size() < t.size()) swap(plus, t);
        while (!t.empty()) {
            plus.push(t.top());
            t.pop();
        }
        dp[v] += dp[u];
        sum[v] += sum[u];
    }
    while (!t.empty() && sum[v] > R) {
        pll t = plus.top();
        plus.pop();
        if (sum[v] - R < t.second) {
            dp[v] += (sum[v] - R) * t.first;
            sum[v] -= (sum[v] - R);
            plus.push({t.first, t.second - (sum[v] - R)});
        }
        else {
            dp[v] += t.second * t.first;
            sum[v] -= t.second;
        }
    }
    if (sum[v] > R) {
        dp[v] += (sum[v] - R) * w[v];
        sum[v] -= (sum[v] - R);
    }
    plus.push({w[v], sum[v]-L});
    return plus;
}

long long query(int L, int R) {
    for (int i = 0; i < n; i++) sum[i] = dp[i] = 0;
    solve(0, L, R);
    return dp[0];
}

Compilation message (stderr)

tree.cpp: In function 'pq solve(int, ll, ll)':
tree.cpp:42:13: error: 't' was not declared in this scope
   42 |     while (!t.empty() && sum[v] > R) {
      |             ^
tree.cpp:48:22: error: no matching function for call to 'std::priority_queue<std::pair<long long int, long long int>, std::vector<std::pair<long long int, long long int> >, std::greater<std::pair<long long int, long long int> > >::push(<brace-enclosed initializer list>)'
   48 |             plus.push({t.first, t.second - (sum[v] - R)});
      |             ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/queue:64,
                 from tree.cpp:2:
/usr/include/c++/11/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<long long int, long long int>; _Sequence = std::vector<std::pair<long long int, long long int> >; _Compare = std::greater<std::pair<long long int, long long int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<long long int, long long int>]'
  640 |       push(const value_type& __x)
      |       ^~~~
/usr/include/c++/11/bits/stl_queue.h:640:30: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::pair<long long int, long long int>&'}
  640 |       push(const value_type& __x)
      |            ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/11/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::pair<long long int, long long int>; _Sequence = std::vector<std::pair<long long int, long long int> >; _Compare = std::greater<std::pair<long long int, long long int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<long long int, long long int>]'
  648 |       push(value_type&& __x)
      |       ^~~~
/usr/include/c++/11/bits/stl_queue.h:648:25: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::pair<long long int, long long int>, std::vector<std::pair<long long int, long long int> >, std::greater<std::pair<long long int, long long int> > >::value_type&&' {aka 'std::pair<long long int, long long int>&&'}
  648 |       push(value_type&& __x)
      |            ~~~~~~~~~~~~~^~~