Submission #1172011

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172011		woohyun_jng	Prisoner Challenge (IOI22_prison)	C++20	30 / 100	17 ms	2116 KiB

prison

#include "prison.h"

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

vector<vector<int>> devise_strategy(int N) {
    vector<vector<int>> ans(56, vector<int>(N + 1, 0));
    int X, Y, K;

    for (int i = 0; i <= 55; i++) {
        X = i == 0 ? 12 : i / 4 - 1, Y = (i % 4) / 2;
        ans[i][0] = i % 2;
        for (int j = 1; j <= N; j++) {
            K = (j & (1 << X)) >> X;
            if (i % 2 == 0)
                ans[i][j] = (X + 1) * 4 + K * 2 + 1;
            else {
                if (K < Y)
                    ans[i][j] = -2;
                else if (K > Y)
                    ans[i][j] = -1;
                else
                    ans[i][j] = max(0, X * 4);
            }
        }
    }

    return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 20 / 90