Submission #272272

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
272272	2020-08-18 11:11:52	brcode	Political Development (BOI17_politicaldevelopment)	C++14	100 / 100	783 ms	31268 KiB

politicaldevelopment

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#include <iostream>
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5+5;
set<int> v1[MAXN];
int n,k;
set<pair<int,int>> s1;
int main(){
  
    cin>>n>>k;
    for(int i=0;i<n;i++){
      int x;
      cin>>x;
      for(int j=1;j<=x;j++){
        int y;
        cin>>y;
        v1[i].insert(y);
      }
      s1.insert(make_pair(x,i));
    }
    int ans = 0;
    while(s1.size()){
      auto it = s1.begin();
      pair<int,int> hold  = *it;
      s1.erase(it);
      //cout<<hold.first<<" "<<hold.second<<endl;
      vector<int> v2;
      for(int x:v1[hold.second]){
        v2.push_back(x);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:37:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |       for(int i=0;i<v2.size();i++){
      |                   ~^~~~~~~~~~
politicaldevelopment.cpp:40:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int j=0;j<v2.size();j++){
      |                     ~^~~~~~~~~~
politicaldevelopment.cpp:63:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |      for(int i=0;i<v2.size();i++){
      |                  ~^~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 12 / 12
• Subtask 3: 23 / 23
• Subtask 4: 38 / 38
• Subtask 5: 23 / 23