Submission #658885

#	Time	Username	Problem	Language	Result	Execution time	Memory
658885		coding_snorlax	Thousands Islands (IOI22_islands)	C++17	10 / 100	33 ms	3412 KiB

islands

#include<bits/stdc++.h>
#include "islands.h"
using namespace std;
variant<bool, std::vector<int>> find_journey(int N,int M,vector<int> U,vector<int> V){
    if(N==2){
    int Back=-1;
    int Front_1=-1;
    int Front_2=-1;
    vector<int> S;
    for(int i=0;i<M;i++){
        if(!(Back+1) && U[i]==1) Back=i;
        else if(!(Front_1+1) && V[i]==1) Front_1=i;
        else if(!(Front_2+1) && V[i]==1) Front_2=i;
    }
    if(!(Back+1) || !(Front_1+1) || !(Front_2+1)) return false;
    S.push_back(Front_1);
    S.push_back(Back);
    S.push_back(Front_2);
    S.push_back(Front_1);
    S.push_back(Back);
    S.push_back(Front_2);

    return  S;
    }
    int find_0_1=-1;
    int find_0_2=-1;
    int find_1_0=-1;
    int find_2_0=-1;
    //vector<int> S;
    for(int i=0;i<M;i++){
        if(!(find_0_1+1) && U[i]==0 && V[i]==1) find_0_1=i;
        else if(!(find_0_2+1) && U[i]==0 && V[i]==2) find_0_2=i;
        else if(!(find_1_0+1) && U[i]==1 && V[i]==0) find_1_0=i;
        else if(!(find_2_0+1) && U[i]==2 && V[i]==0) find_2_0=i;
    }
    //if(!(Back+1) || !(Front_1+1) || !(Front_2+1)) return S;
    vector<int> S={find_0_1,find_1_0,find_0_2,find_2_0,find_1_0,find_0_1,find_2_0,find_0_2};

    return  S;
}

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