Submission #628170

#	Time	Username	Problem	Language	Result	Execution time	Memory
628170		TheQuantiX	Prisoner Challenge (IOI22_prison)	C++17	0 / 100	1 ms	212 KiB

prison

#include "prison.h"
// Made by TheQuantiX
#include <bits/stdc++.h>
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,sse4.2,bmi,bmi2,lzcnt,popcnt")

using namespace std;

using ll = long long;

constexpr ll MAXN = 1e5;
constexpr ll MOD = 1000000007;
constexpr ll INF = 1000000000000000000LL;

ll tt, n, m, k, x, y, a, b, c, d;

std::vector<std::vector<int>> devise_strategy(int N) {
    vector< vector<int> > ans(1, vector<int>(n + 1));
    queue< pair< pair<int, int>, pair<int, int> > > q;
    q.push({{0, 0}, {1, n}});
    while (!q.empty()) {
        auto p = q.front();
        q.pop();
        ll l = p.second.first;
        ll r = p.second.first;
        ll x = p.first.first;
        ans[x][0] = p.first.second;
        for (int i = 1; i <= l; i++) {
            if (p.first.second == 0) {
                ans[x][i] = -1;
            }
            else {
                ans[x][i] = -2;
            }
        }
        for (int i = r; i <= n; i++) {
            if (p.first.second == 0) {
                ans[x][i] = -2;
            }
            else {
                ans[x][i] = -1;
            }
        }
        l++;
        r--;
        if (l > r) {
            continue;
        }
        int mid = (r + l) / 2;
        q.push({{ans.size(), 1 - p.first.second}, {l, mid}});
        ans.resize(ans.size() + 1);
        if (l != r) {
            q.push({{ans.size(), 1 - p.first.second}, {mid + 1, r}});
            ans.resize(ans.size() + 1);
        }
    }
    return ans;
}

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