3171 | 2023. 02. 21 12:40:21 | renn | Hírvivők csoportosítása (40) | cpp17 | Elfogadva 40/40 | 14ms | 6208 KiB |
#include <bits/stdc++.h>
using namespace std;
#define GOTTAGOFAST cin.tie(0); ios::sync_with_stdio(0);
int cnt;
void bfs(int c, int &n, int &cl, vector<bool> &volt, vector<pair<int, int>> &pontok);
bool megold(int n, int cl, int &k, vector<bool> &volt, vector<pair<int, int>> &pontok)
{
fill(volt.begin(), volt.end(), false);
cnt = 0;
for (int i = 0; i < n; i++)
{
if(volt[i]) continue;
cnt++;
bfs(i, n, cl, volt, pontok);
}
return cnt <= k;
}
void bfs(int c, int &n, int &cl, vector<bool> &volt, vector<pair<int, int>> &pontok)
{
volt[c] = true;
for(int i = 0; i < n; i++)
{
if(volt[i]) continue;
if(abs(pontok.at(c).first-pontok.at(i).first)+abs(pontok.at(c).second-pontok.at(i).second) <= cl)
{
bfs(i, n, cl, volt, pontok);
continue;
}
}
}
int main()
{
GOTTAGOFAST
int x, y, n, k;
cin >> x >> y >> n >> k;
vector<vector<int>> graf(n, vector<int>(n, -1));
vector<pair<int, int>> pontok(n);
vector<bool> volt(n);
int a, b;
for (size_t i = 0; i < n; i++)
{
cin >> a >> b;
pontok.at(i) = {a, b};
}
int left = 0, right = 100010, mid;
//cout << "----\n";
while(left <= right)
{
mid = left+(right-left)/2;
//cout << left << " " << mid << " " << right << "\n";
if(megold(n, mid, k, volt, pontok))
{
right = mid-1;
}
else
{
left = mid+1;
}
}
cout << (left) << "\n";
return 0;
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 40/40 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1824 KiB | |||
2 | Elfogadva | 0/0 | 12ms | 3480 KiB | |||
3 | Elfogadva | 1/1 | 3ms | 2408 KiB | |||
4 | Elfogadva | 1/1 | 3ms | 2460 KiB | |||
5 | Elfogadva | 1/1 | 4ms | 3092 KiB | |||
6 | Elfogadva | 1/1 | 4ms | 3392 KiB | |||
7 | Elfogadva | 1/1 | 3ms | 3124 KiB | |||
8 | Elfogadva | 1/1 | 3ms | 3356 KiB | |||
9 | Elfogadva | 1/1 | 3ms | 3312 KiB | |||
10 | Elfogadva | 1/1 | 4ms | 3620 KiB | |||
11 | Elfogadva | 1/1 | 4ms | 3924 KiB | |||
12 | Elfogadva | 1/1 | 4ms | 4036 KiB | |||
13 | Elfogadva | 3/3 | 14ms | 5540 KiB | |||
14 | Elfogadva | 3/3 | 14ms | 5544 KiB | |||
15 | Elfogadva | 3/3 | 13ms | 5748 KiB | |||
16 | Elfogadva | 3/3 | 14ms | 5960 KiB | |||
17 | Elfogadva | 3/3 | 13ms | 6048 KiB | |||
18 | Elfogadva | 3/3 | 13ms | 6048 KiB | |||
19 | Elfogadva | 3/3 | 14ms | 5964 KiB | |||
20 | Elfogadva | 3/3 | 14ms | 5980 KiB | |||
21 | Elfogadva | 3/3 | 13ms | 6208 KiB | |||
22 | Elfogadva | 3/3 | 14ms | 6156 KiB |