Submission #1022815

#	Time	Username	Problem	Language	Result	Execution time	Memory
1022815		vjudge1	Prisoner Challenge (IOI22_prison)	C++17	30 / 100	22 ms	2140 KiB

prison

#include "prison.h"
#include<bits/stdc++.h>

using namespace std;

#define rall(s) s.rbegin(), s.rend()
#define all(s) s.begin(), s.end()
#define sz(s) (int)s.size()
#define s second 
#define f first 

using ll = long long;
using pii = pair<int, int>; 
using pll = pair<ll, ll>;

const int N = 1e6;

vector<vector<int>> devise_strategy(int n) {
    vector<vector<int>> ans;
    for (int x = 0; x <= 52; x++) {
        if (!x) {
            vector<int> s = {0};
            for (int i = 1; i <= n; i++) {
                if (i >> 12 & 1) s.push_back(52);
                else s.push_back(50);
            }
            ans.push_back(s);
            continue;
        }
        int v = x - 1;
        if (v & 1) {
            vector<int> s = {1};
            int b = v / 4, is = (v / 2) & 1;
            for (int i = 1; i <= n; i++) {
                if (i >> b & 1) {
                    if (is && b) {
                        s.push_back((b - 1) * 4 + 1);
                        continue;
                    }
                    s.push_back(-1);
                }else {
                    if (is || !b) {
                        s.push_back(-2);
                        continue;
                    }
                    s.push_back((b - 1) * 4 + 1);
                }
            }
            ans.push_back(s);
        }else {
            vector<int> s = {0};
            int b = v / 4;
            for (int i = 1; i <= n; i++) {
                if (i >> b & 1) s.push_back(((b * 2) + 1) * 2 + 2);
                else s.push_back(b * 4 + 2);
            }
            ans.push_back(s);
        }
    }
    return ans;
}

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