제출 #443491

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
443491	2021-07-10 15:13:50	leinad2	Fountain Parks (IOI21_parks)	C++17	55 / 100	2439 ms	74736 KiB

parks

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#include "parks.h"
#include<bits/stdc++.h>
using namespace std;
int par[400010], chk[400010], chk2[400010], A[400010][2], vis[400010];
int Find(int v){return v==par[v]?v:par[v]=Find(par[v]);}
vector<pair<int, int> >v;
int cnt;
map<pair<int, int>, int>mp;
vector<pair<int, int> >adj[400010];
vector<int>_u, _v, _a, _b;
void dfs(int v)
{
    for(int i=0;i<adj[v].size();i++)
    {
        int p=adj[v][i].first;
        if(!vis[p])vis[p]=1,dfs(p),_a[adj[v][i].second]=p;
    }
}
int construct_roads(vector<int>x, vector<int>y)
{
    int n, i, j, k, a, b;
    n=x.size();
    vector<pair<pair<int, int>, int> >V;
    for(i=0;i<n;i++)
    {
        V.push_back({{x[i], y[i]}, i});
    }
    sort(V.begin(), V.end());
    for(i=1;i<V.size();i++)
    {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

parks.cpp: In function 'void dfs(int)':
parks.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for(int i=0;i<adj[v].size();i++)
      |                 ~^~~~~~~~~~~~~~
parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(i=1;i<V.size();i++)
      |             ~^~~~~~~~~
parks.cpp:41:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for(i=1;i<V.size();i++)
      |             ~^~~~~~~~~
parks.cpp:53:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
parks.cpp:62:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   62 |         if(_u.size()!=n-1)return 0;
      |            ~~~~~~~~~^~~~~
parks.cpp:65:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |         for(i=0;i<_u.size();i++)
      |                 ~^~~~~~~~~~
parks.cpp:84:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for(i=0;i<edge.size();i++)par[Find(edge[i].first)]=Find(edge[i].second);
      |                 ~^~~~~~~~~~~~
parks.cpp:86:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |         for(i=0;i<edge.size();i++)chk2[Find(edge[i].first)]++;
      |                 ~^~~~~~~~~~~~
parks.cpp:87:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   87 |         for(i=0;i<edge.size();i++)
      |                 ~^~~~~~~~~~~~
parks.cpp:102:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |         for(i=0;i<_a.size();i++)
      |                 ~^~~~~~~~~~
parks.cpp:21:15: warning: unused variable 'j' [-Wunused-variable]
   21 |     int n, i, j, k, a, b;
      |               ^
parks.cpp:21:18: warning: unused variable 'k' [-Wunused-variable]
   21 |     int n, i, j, k, a, b;
      |                  ^
parks.cpp:21:21: warning: unused variable 'a' [-Wunused-variable]
   21 |     int n, i, j, k, a, b;
      |                     ^
parks.cpp:21:24: warning: unused variable 'b' [-Wunused-variable]
   21 |     int n, i, j, k, a, b;
      |                        ^

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 0 / 30