제출 #1170986

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1170986		bbartek	Meetings (JOI19_meetings)	C++20	29 / 100	1105 ms	327680 KiB

meetings

#include <bits/stdc++.h>
#include "meetings.h"

using namespace std;

typedef long long ll;
#define st first
#define nd second
#define pb push_back

const int maxn = 303;

bool polaczone[maxn];
vector<int> synowie[maxn];
vector<int> kolejnosc;
vector<pair<int,int>> wyniki;

bool porownaj(int a,int b){
    return synowie[a].size() < synowie[b].size();
}
/*
void Bridge(int a,int b){
    cout<<a<<" "<<b<<"\n";
}
vector<int> graf[maxn];
vector<int> odl(maxn);

void dfs(int v,int p){
    odl[v] = odl[p]+1;
    for(auto i : graf[v]){
        if(i==p)
            continue;
        dfs(i,v);
    }
}

int Query(int a,int b,int c){
    graf[0] = {2};
    graf[1] = {2};
    graf[2] = {0,1};
    int minimum = 1e9,ind;
    for(int i=0;i<5;i++){
        odl.clear();
        dfs(i,8);
        if(odl[a]+odl[b]+odl[c] < minimum){
            minimum = odl[a]+odl[b]+odl[c];
            ind = i;
        }
    }

    return ind;
}
*/

void Solve(int n){   //Query(a,b,c)//Bridge(a,b)//
    int x;
    for(int i=1;i<n;i++){
        for(int j=i+1;j<n;j++){
            x = Query(0,i,j);
            if(x == i){
                synowie[i].pb(j);
                //cout<<i<<" "<<j<<"\n";
            }
            else if(x == j){
                synowie[j].pb(i);
                //cout<<j<<" "<<i<<"\n";
            }
        }
        kolejnosc.pb(i);
    }

    sort(kolejnosc.begin(),kolejnosc.end(),porownaj);

    for(auto i : kolejnosc){
        //cout<<i<<" ";
        for(auto j : synowie[i]){
            if(polaczone[j])
                continue;
            wyniki.pb({min(i,j),max(i,j)});
            polaczone[j] = 1;
        }
    }

    for(int i=1;i<n;i++){
        if(!polaczone[i]){
            wyniki.pb({0,i});
        }
    }

    for(auto i : wyniki){
        Bridge(i.st,i.nd);
    }

    return;
}

/*
int main(){
    Solve(3);
    return 0;
}
*/

• Subtask 1: 7 / 7
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 0 / 71