Submission #1150107

#	Time	Username	Problem	Language	Result	Execution time	Memory
1150107		enzy	Parachute rings (IOI12_rings)	C++20	0 / 100	225 ms	48932 KiB

rings

#include<bits/stdc++.h>
using namespace std;
const int maxn=1e6+10;
int n, resp, qtd3, viz[maxn], eh[maxn];
vector<int>v[maxn];
bool ja=false;
void Init(int N_){
    resp = n = N_;
}

void Link(int a, int b){
    v[a].push_back(b);
    v[b].push_back(a);
    if(v[a].size()>=4){
        if(ja) resp=0;
        else if(qtd3==viz[a]+1) resp=1; // tem o proprio a
        ja=true;
    }
    if(v[b].size()>=4){
        if(ja) resp=0;
        else if(qtd3==viz[b]+1) resp=1; // tem o proprio b
        ja=true;
    }
    if(v[a].size()==3){
        qtd3++; eh[a]++;
        int at=0;
        for(int i : v[a]){
            viz[i]++;
            if(viz[i]+eh[i]==qtd3) at++;
        }
        resp=at;
    }
    if(v[b].size()==3){
        qtd3++; eh[b]++;
        int at=0;
        for(int i : v[b]){
            viz[i]++;
            if(viz[i]+eh[i]==qtd3) at++;
        }
        resp=at;
    }
}

int CountCritical(){
    return resp;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 17
• Subtask 3: 0 / 18
• Subtask 4: 0 / 14
• Subtask 5: 0 / 31