Submission #1129783

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129783		origabai	Island Hopping (JOI24_island)	C++20	65 / 100	4 ms	472 KiB

island

#include "island.h"
#include<bits/stdc++.h>
using namespace std;

void solve(int N, int L) {
    bool nei[N+1][N+1];
    for (int i=0;i<=N;i++){
        for (int j=0;j<=N;j++){
            nei[i][j]=0;
        }
    }
    bool finished[N+1] = {0};
    for (int i=N;i>0;i--){
        if (finished[i]) continue;
        vector<int> curr_neis;
        int j = 1;
        bool flag = true;
        while (flag && j < N){
            int v = query(i,j);
            for (int x : curr_neis){
                if (nei[x][v]){
                    flag = false;
                    break;
                }
            }
            if (!flag) break;
            if (!finished[v]){
                for (int k=1,x=i+1;x!=i;k++){
                    x = query(v,k);
                    nei[x][v] = nei[v][x] = 1;
                }
                finished[v] = 1;
            }
            curr_neis.push_back(v);
            j++;
        }
        finished[i] = 1;
    }
    for (int i=1;i<=N;i++){
        for (int j=i+1;j<=N;j++){
            if (nei[i][j]) answer(i,j);
        }
    }
}

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 0 / 7
• Subtask 4: 9 / 9
• Subtask 5: 13 / 13
• Subtask 6: 15 / 15
• Subtask 7: 22 / 22
• Subtask 8: 0 / 28