Submission #831632

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
831632	2023-08-20 11:35:09	Minindu206	Fountain Parks (IOI21_parks)	C++17	5 / 100	551 ms	43500 KiB

parks

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 10;
vector<int> adj[MAXN];
void dfs(int node, vector<int> &vis)
{
    vis[node] = 1;
    for(auto a:adj[node])
        if(!vis[a])
            dfs(a, vis);
}
int construct_roads(vector<int> x, vector<int> y)
{
    int n = x.size();
    map<pair<int, int>, int> ft;
    for(int i=0;i<n;i++)
    {
        ft[{x[i], y[i]}] = i;
    }
    vector<pair<int, int>> dir{{2, 0}, {-2, 0}, {0, 2}, {0, -2}};
    vector<int> u, v, a, b;
    for(int i=0;i<n;i++)
    {
        for(auto d:dir)
        {
            int cx = x[i] + d.first, cy = y[i] + d.second;
            if(!ft.count({cx, cy}))
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:40:38: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   40 |                     a.push_back(x[i] + cx >> 1);
parks.cpp:48:42: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   48 |                         b.push_back(y[i] + cy >> 1);
parks.cpp:53:42: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   53 |                         b.push_back(y[i] + cy >> 1);

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