Submission #629573

#	Time	Username	Problem	Language	Result	Execution time	Memory
629573		somethingnew	Prisoner Challenge (IOI22_prison)	C++17	10 / 100	11 ms	940 KiB

prison

#include <iostream>
#include "vector"
#include <cassert>
#include <cstdio>

#include <string>
#include <vector>
#include "algorithm"
#include "numeric"
#include "climits"
#include "iomanip"
#include "bitset"
#include "cmath"
#include "map"
#include "deque"
#include "array"
#include "set"
#define all(x) x.begin(), x.end()
using namespace std;
vector<array<int, 3>> names;
vector<vector<int>> devise_strategy(int N) {
    names.assign(25, {});
    names[0] = {0, 0, 0};
    for (int i = 0; i < 24; ++i) {
        names[i + 1] = {i / 2, i % 2, i / 2 % 2};
    }
    vector<vector<int>> res;
    res.push_back(vector<int>(N + 1, 0));
    res[0][0] = 1;
    for (int i = 1; i <= N; ++i) {
        res[0][i] = bitset<13>(i)[12-0] + 1;
    }
    int mx = 0;
    for (int i = 1; i < 25; ++i) {
        res.push_back(vector<int>(N + 1, 0));
        res[i][0] = names[i][2];
        for (int j = 1; j <= N; ++j) {
            bitset<13> bt = j;
            if (i > 2 and bt[12-names[i][0]] != names[i][1]) {
                res[i][j] = -(names[i][2] ^ (bt[12-names[i][0]] > names[i][1]))-1;
            } else {
                if (12-(names[i][0] + 1) > 0)
                    res[i][j] = bitset<13>(j)[12-(names[i][0] + 1)] + names[i][0] * 2 + 3;
                else
                    res[i][j] = -(bitset<13>(j)[12-(names[i][0] + 1)] ^ 1)-1;
            }
            mx = max(mx, res[i][j]);
        }
    }
    return res;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 90