Submission #837248

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
837248	2023-08-25 08:36:46	1075508020060209tc	Love Polygon (BOI18_polygon)	C++14	100 / 100	305 ms	35540 KiB

polygon

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#include <bits/stdc++.h>
using namespace std;
#define int long long
 
int n;
vector<int>e[200005];
vector<int>ee[200005];
int dgr[200005];
int alrd[200005];
int lve[200005];
int hs[200005];
void init(){
cin>>n;
int __id=0;
map<string,int>mp;
for(int i=1;i<=n;i++){
    string s;
    string t;
    cin>>s>>t;
    if(mp[s]==0){
        mp[s]=++__id;
    }
    if(mp[t]==0){
        mp[t]=++__id;
    }
    lve[mp[s]]=mp[t];
    e[mp[s]].push_back(mp[t]);
//    ee[mp[s]].push_back(mp[t]);
//    ee[mp[t]].push_back(mp[s]);
    dgr[mp[t]]++;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

polygon.cpp: In function 'void dfs(long long int, long long int)':
polygon.cpp:56:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 | for(int i=0;i<ee[nw].size();i++){
      |             ~^~~~~~~~~~~~~~
polygon.cpp: In function 'int main()':
polygon.cpp:96:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |     for(int i=0;i<e[nw].size();i++){
      |                 ~^~~~~~~~~~~~~

• Subtask 1: 21 / 21
• Subtask 2: 25 / 25
• Subtask 3: 29 / 29
• Subtask 4: 25 / 25