oj.uz

Submission #1053019

# Submission time Handle Problem Language Result Execution time Memory
1053019 2024-08-11T07:59:27 Z fuad27 Fountain Parks (IOI21_parks) C++17
45 / 100
 633 ms 37552 KB 
#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
struct dsu {
	vector<int> e;
	int cc=0;
	dsu(int n) {
		e=vector<int>(n, -1);
		cc=n;
	}
	int get(int x) {
		if(e[x]<0)return x;
		return e[x]=get(e[x]);
	}
	bool unite(int x, int y) {
		x=get(x),y=get(y);
		if(x==y)return false;
		if(-e[x] < -e[y]){
			swap(x, y);
		}
		cc--;
		e[x]+=e[y];
		e[y] = x;
		return true;
	}
};
int construct_roads(vector<int> x, vector<int> y) {
	vector<pair<int,int>> bc;
	int n = x.size();
	dsu d(n);
	map<pair<int,int>, int> mp;
	for(int i = 0;i<n;i++) {
		mp[{x[i], y[i]}] = i;
		bc.push_back({x[i]-1, y[i]-1});
		bc.push_back({x[i]-1, y[i]+1});
		bc.push_back({x[i]+1, y[i]-1});
		bc.push_back({x[i]+1, y[i]+1});
	}
	vector<int> a, b, c, D;
	for(auto [u,v]:bc) {
		if((u+v)%4 == 2) {
			if(mp.find(pair{u-1, v+1})!=mp.end() and mp.find(pair{u+1, v+1}) != mp.end() and d.unite(mp[{u-1, v+1}], mp[{u+1, v+1}])) {
				a.push_back(mp[{u-1, v+1}]);
				b.push_back(mp[{u+1, v+1}]);
				c.push_back(u);
				D.push_back(v);
			}
			else if(mp.find(pair{u-1, v-1})!=mp.end() and mp.find(pair{u+1, v-1}) != mp.end() and d.unite(mp[{u-1, v-1}], mp[{u+1, v-1}])) {
				a.push_back(mp[{u-1, v-1}]);
				b.push_back(mp[{u+1, v-1}]);
				c.push_back(u);
				D.push_back(v);
			}
		}
		else {
			if(mp.find(pair{u+1, v+1})!=mp.end() and mp.find(pair{u+1, v-1}) != mp.end() and d.unite(mp[{u+1, v+1}], mp[{u+1, v-1}])) {
				a.push_back(mp[{u+1, v+1}]);
				b.push_back(mp[{u+1, v-1}]);
				c.push_back(u);
				D.push_back(v);
			}
			else if(mp.find(pair{u-1, v-1})!=mp.end() and mp.find(pair{u-1, v+1}) != mp.end() and d.unite(mp[{u-1, v-1}], mp[{u-1, v+1}])) {
				a.push_back(mp[{u-1, v-1}]);
				b.push_back(mp[{u-1, v+1}]);
				c.push_back(u);
				D.push_back(v);
			}
		}
	}
	if(d.cc!=1)return false;
	build(a, b, c, D);
	return true;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 1 and 2
19 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 1 and 2
19 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 473 ms 37440 KB Output is correct
21 Correct 484 ms 36392 KB Output is correct
22 Correct 486 ms 35760 KB Output is correct
23 Correct 351 ms 30644 KB Output is correct
24 Correct 266 ms 25524 KB Output is correct
25 Correct 492 ms 31800 KB Output is correct
26 Correct 444 ms 31164 KB Output is correct
27 Correct 477 ms 35488 KB Output is correct
28 Correct 492 ms 36656 KB Output is correct
29 Correct 512 ms 36016 KB Output is correct
30 Correct 527 ms 35248 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 29 ms 2768 KB Output is correct
33 Correct 112 ms 13000 KB Output is correct
34 Correct 465 ms 37364 KB Output is correct
35 Correct 18 ms 2004 KB Output is correct
36 Correct 106 ms 8016 KB Output is correct
37 Correct 229 ms 15800 KB Output is correct
38 Correct 193 ms 14784 KB Output is correct
39 Correct 276 ms 19876 KB Output is correct
40 Correct 379 ms 26800 KB Output is correct
41 Correct 462 ms 31164 KB Output is correct
42 Correct 555 ms 36016 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 436 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 3 ms 600 KB Output is correct
55 Correct 5 ms 860 KB Output is correct
56 Correct 227 ms 17508 KB Output is correct
57 Correct 330 ms 27564 KB Output is correct
58 Correct 323 ms 26340 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 377 ms 36016 KB Output is correct
63 Correct 374 ms 36792 KB Output is correct
64 Correct 380 ms 35744 KB Output is correct
65 Correct 6 ms 1112 KB Output is correct
66 Correct 12 ms 1496 KB Output is correct
67 Correct 216 ms 17536 KB Output is correct
68 Correct 363 ms 27060 KB Output is correct
69 Correct 493 ms 36264 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct
17 Correct 398 ms 36160 KB Output is correct
18 Correct 411 ms 37136 KB Output is correct
19 Correct 485 ms 37308 KB Output is correct
20 Correct 633 ms 35764 KB Output is correct
21 Correct 466 ms 31924 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 69 ms 5592 KB Output is correct
24 Correct 41 ms 3536 KB Output is correct
25 Correct 163 ms 12748 KB Output is correct
26 Correct 305 ms 18368 KB Output is correct
27 Correct 261 ms 18872 KB Output is correct
28 Correct 353 ms 22200 KB Output is correct
29 Correct 469 ms 28336 KB Output is correct
30 Correct 580 ms 32432 KB Output is correct
31 Correct 590 ms 37552 KB Output is correct
32 Correct 563 ms 36100 KB Output is correct
33 Correct 403 ms 35704 KB Output is correct
34 Correct 7 ms 1148 KB Output is correct
35 Correct 14 ms 1748 KB Output is correct
36 Correct 235 ms 17596 KB Output is correct
37 Correct 401 ms 27636 KB Output is correct
38 Correct 587 ms 36288 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 166 ms 18124 KB Output is correct
10 Correct 11 ms 2000 KB Output is correct
11 Correct 70 ms 9412 KB Output is correct
12 Correct 16 ms 2768 KB Output is correct
13 Correct 51 ms 7108 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 166 ms 17488 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 1 and 2
19 Halted 0 ms 0 KB -