Submission #934882

#	Time	Username	Problem	Language	Result	Execution time	Memory
934882		irmuun	Political Development (BOI17_politicaldevelopment)	C++17	16 / 100	282 ms	524288 KiB

politicaldevelopment

#include<bits/stdc++.h>
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
 
int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n,k;
    cin>>n>>k;
    ll d[n];
    vector<ll>adj[n];
    bool ok=false;
    bool dis[n][n];
    memset(dis,0,sizeof dis);
    for(ll i=0;i<n;i++){
        cin>>d[i];
        if(d[i]>0) ok=true;
        adj[i].resize(d[i]);
        for(ll j=0;j<d[i];j++){
            cin>>adj[i][j];
            dis[i][adj[i][j]]=true;
        }
    }
    bool k3=false;
    for(ll i=0;i<n;i++){
        for(ll j=0;j<adj[i].size();j++){
            for(ll r=j+1;r<adj[i].size();r++){
                if(dis[adj[i][j]][adj[i][r]]==true){
                    k3=true;
                }
            }
        }
    }
    if(k3){
        cout<<3;
    }
    else if(ok){
        cout<<2;
    }
    else{
        cout<<1;
    }
}

Compilation message (stderr)

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:32:21: 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]
   32 |         for(ll j=0;j<adj[i].size();j++){
      |                    ~^~~~~~~~~~~~~~
politicaldevelopment.cpp:33:27: 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]
   33 |             for(ll r=j+1;r<adj[i].size();r++){
      |                          ~^~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 12 / 12
• Subtask 3: 0 / 23
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23