Submission #891670

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
891670	2023-12-23 14:28:27	vjudge1	Highway Tolls (IOI18_highway)	C++17	11 / 100	1861 ms	262144 KiB

highway

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#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using ii = pair<int, int>;
vector<ii> E;
struct tree {
    int n;
    vi par, par_cent, sz;
    vector<vi> L, G;
    
    tree(int N) : n(N), L(N), par(N), par_cent(N), sz(N), G(N) {}
    void add_edge(int u, int v) {
        L[u].push_back(v);
        L[v].push_back(u);
    }
    void init() {
        vi on(n, 1);
        function<void(int, int)> dfs_sz = [&](int u, int p) {
            sz[u] = 1;
            for(auto it : L[u]) {
                if(on[it] && it != p) {
                    dfs_sz(it, u);
                    sz[u] += sz[it];
                }
 
 
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Compilation message (stderr)

highway.cpp: In constructor 'tree::tree(int)':
highway.cpp:13:16: warning: 'tree::L' will be initialized after [-Wreorder]
   13 |     vector<vi> L, G;
      |                ^
highway.cpp:12:8: warning:   'vi tree::par' [-Wreorder]
   12 |     vi par, par_cent, sz;
      |        ^~~
highway.cpp:15:5: warning:   when initialized here [-Wreorder]
   15 |     tree(int N) : n(N), L(N), par(N), par_cent(N), sz(N), G(N) {}
      |     ^~~~
highway.cpp: In member function 'int tree::cine(int)':
highway.cpp:147:13: warning: unused variable 'cm' [-Wunused-variable]
  147 |         int cm = query(dr);
      |             ^~
highway.cpp: In function 'void find_pair(int, vi, vi, int, int)':
highway.cpp:161:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  161 |     for(int i = 0; i < U.size(); ++i) {
      |                    ~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 7
• Subtask 3: 6 / 6
• Subtask 4: 0 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31