제출 #1235738

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1235738		Muhammad_Aneeq	수천개의 섬 (IOI22_islands)	C++20	10 / 100	84 ms	12872 KiB

islands

#include "islands.h"

#include <variant>
#include <vector>
#include <map>
using namespace std;
variant<bool, vector<int>> find_journey(int N, int M, vector<int> U, vector<int> V) 
{
    if (N ==2) 
    {
    vector<int>ind[2]={};
    for (int i=0;i<M;i++)
      ind[U[i]].push_back(i);
        if (ind[0].size()>1&&ind[1].size())
        {
            vector<int>ans;
            ans.push_back(ind[0][0]);
            ans.push_back(ind[1][0]);
            ans.push_back(ind[0][1]);
            ans.push_back(ind[0][0]);
            ans.push_back(ind[1][0]);
            ans.push_back(ind[0][1]);
            return ans;
        }
        else
            return false;
    }
    map<pair<int,int>,int>ind;
    for (int i=0;i<M;i++)
        ind[{U[i],V[i]}]=i;
    vector<int>ans;
    ans.push_back({ind[{0,1}]});
    ans.push_back({ind[{1,0}]});
    ans.push_back({ind[{0,2}]});
    ans.push_back({ind[{2,0}]});
    ans.push_back({ind[{1,0}]});
    ans.push_back({ind[{0,1}]});
    ans.push_back({ind[{2,0}]});
    ans.push_back({ind[{0,2}]});
    return ans;
    // return false;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45