Submission #932624

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
932624	2024-02-24 01:13:47	Programmer123	Fountain Parks (IOI21_parks)	C++17	5 / 100	216 ms	54624 KiB

parks

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#include <bits/stdc++.h>
#include "parks.h"
std::unordered_map<int, int> map[200001];
int construct_roads(std::vector<int> x, std::vector<int> y) {
    int N = (int) x.size();
    if (N == 1) {
        build({}, {}, {}, {});
        return 1;
    }
    std::vector<int> u, v, a, b;
    for (int i = 0; i < N; ++i) {
        map[x[i]][y[i]] = i;
    }
    bool seen[N];
    for (int i = 0; i < N; ++i) {
        seen[i] = false;
    }
    std::queue<int> bfs;
    bfs.push(0);
    seen[0] = true;
    auto add = [&](int x, int y, std::vector<int> &data) {
        if (x < 0 || x > 200000) return;
        if (map[x].count(y)) data.push_back(map[x][y]);
    };
    auto edges = [&](int x, int y) {
        std::vector<int> result;
        add(x, y + 2, result);
        add(x, y - 2, result);
        add(x + 2, y, result);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30