Submission #1053273

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1053273	2024-08-11 10:12:26	aykhn	Fountain Parks (IOI21_parks)	C++17	5 / 100	598 ms	64036 KiB

parks

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#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
int A[4] = {0, 0, 2, -2};
int B[4] = {2, -2, 0, 0};
array<int, 2> ben[4][2] = {{{-1, 1}, {1, 1}}, {{-1, -1}, {1, -1}}, {{1, 1}, {1, -1}}, {{-1, 1}, {-1, -1}}};
struct DSU
{
    vector<int> e;
    void init(int n)
    {
        e.assign(n, -1);
    }
    int get(int x)
    {
        if (e[x] < 0) return x;
        return e[x] = get(e[x]);
    }
    void unite(int x, int y)
    {
        x = get(x), y = get(y);
        if (x == y) return;
        if (e[x] > e[y]) swap(x, y);
        e[x] += e[y];
        e[y] = x;
    }
};
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:35:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for (int i = 0; i < X.size(); i++) mp[{X[i], Y[i]}] = i + 1;
      |                     ~~^~~~~~~~~~
parks.cpp:39:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for (int i = 0; i < X.size(); i++)
      |                     ~~^~~~~~~~~~
parks.cpp:62:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |     for (int i = 0; i < X.size(); i++)
      |                     ~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30