oj.uz

Submission #895086

# Submission time Handle Problem Language Result Execution time Memory
895086 2023-12-29T11:50:32 Z Muhammad_Aneeq Fountain Parks (IOI21_parks) C++17
30 / 100
 569 ms 44808 KB 
#include <vector>
#include <map>
#include <queue>
#include "parks.h"
using namespace std;
map<pair<int,int>,int>d,vis;
vector<pair<int,int>>z;
queue<pair<int,int>>Q;
int x1=0,y11=0;
void check(int x,int y)
{
	if (d.find({x,y})!=d.end()&&!vis[{x,y}])
	{
		Q.push({x,y});
		vis[{x,y}]=1;
		z.push_back({d[{x1,y11}],d[{x,y}]});
	}
}
void bfs(int x,int y)
{
	Q.push({x,y});
	vis[{x,y}]=1;
	while (Q.size())
	{
		x,y;
		tie(x,y)=Q.front();
		x1=x,y11=y;
		Q.pop();
		check(x,y-2);
		check(x-2,y);
		check(x,y+2);
		check(x+2,y);
	}
}
int construct_roads(vector<int> x, vector<int> y)
{
	int n=x.size();
	for (int i=0;i<n;i++)
		d[{x[i],y[i]}]=i;
	int reqx=1e9+10,reqy=1e9+10;
	for (int i=0;i<n;i++)
	{
		if (x[i]<reqx)
		{
			reqx=x[i];
			reqy=y[i];
		}
		else if (x[i]==reqx&&reqy>y[i])
			reqy=y[i];
	}
	bfs(reqx,reqy);
	for (int i=0;i<n;i++)
	{
		if (!vis[{x[i],y[i]}])
			return 0;
	}
	//cout<<1<<endl;
	vis={};
	vector<int>u,v,a,b;
	for (auto i:z)
	{
		u.push_back(i.first);
		v.push_back(i.second);
		pair<int,int>r,q;
		r.first=x[i.first],r.second=y[i.first];
		q.first=x[i.second],q.second=y[i.second];
		if (r.first-q.first==0)
		{
			a.push_back(r.first-1);
			b.push_back((r.second+q.second)/2);
			if (vis[{a.back(),b.back()}])
			{
				a.pop_back();
				a.push_back(r.first+1);
				if (vis[{a.back(),b.back()}])
					return 0;
				vis[{a.back(),b.back()}]=1;
			}
			else
				vis[{a.back(),b.back()}]=1;
		}
		else
		{
			a.push_back((r.first+q.first)/2);
			b.push_back(r.second-1);
			if (vis[{a.back(),b.back()}])
			{
				b.pop_back();
				b.push_back(r.second+1);
				if (vis[{a.back(),b.back()}])
					return 0;
				vis[{a.back(),b.back()}]=1;
			}
			else
				vis[{a.back(),b.back()}]=1;
		}
	}
	build(u,v,a,b);
	return 1;
}

Compilation message

parks.cpp: In function 'void bfs(int, int)':
parks.cpp:25:3: warning: left operand of comma operator has no effect [-Wunused-value]
   25 |   x,y;
      |   ^
parks.cpp:25:6: warning: right operand of comma operator has no effect [-Wunused-value]
   25 |   x,y;
      |      ^

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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 KB Output is correct

Subtask #2
10.0 / 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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 473 ms 42992 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 159 ms 17244 KB Output is correct
29 Correct 255 ms 25528 KB Output is correct
30 Correct 347 ms 34316 KB Output is correct
31 Correct 458 ms 43144 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 172 ms 21568 KB Output is correct
46 Correct 277 ms 32556 KB Output is correct
47 Correct 267 ms 32392 KB Output is correct

Subtask #3
15.0 / 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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 473 ms 42992 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 159 ms 17244 KB Output is correct
29 Correct 255 ms 25528 KB Output is correct
30 Correct 347 ms 34316 KB Output is correct
31 Correct 458 ms 43144 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 172 ms 21568 KB Output is correct
46 Correct 277 ms 32556 KB Output is correct
47 Correct 267 ms 32392 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 604 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 604 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 464 ms 44504 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 2 ms 604 KB Output is correct
58 Correct 9 ms 1528 KB Output is correct
59 Correct 5 ms 1372 KB Output is correct
60 Correct 202 ms 22324 KB Output is correct
61 Correct 299 ms 30820 KB Output is correct
62 Correct 368 ms 36784 KB Output is correct
63 Correct 459 ms 44704 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 394 ms 44656 KB Output is correct
68 Correct 452 ms 44708 KB Output is correct
69 Correct 415 ms 44624 KB Output is correct
70 Correct 2 ms 860 KB Output is correct
71 Correct 4 ms 1200 KB Output is correct
72 Correct 176 ms 22096 KB Output is correct
73 Correct 284 ms 33320 KB Output is correct
74 Correct 414 ms 44808 KB Output is correct
75 Correct 437 ms 44548 KB Output is correct
76 Correct 438 ms 44628 KB Output is correct
77 Correct 3 ms 856 KB Output is correct
78 Correct 4 ms 1312 KB Output is correct
79 Correct 179 ms 22224 KB Output is correct
80 Correct 291 ms 33576 KB Output is correct
81 Correct 399 ms 44712 KB Output is correct

Subtask #4
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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 415 ms 43968 KB Output is correct
21 Correct 408 ms 43680 KB Output is correct
22 Correct 418 ms 43752 KB Output is correct
23 Correct 340 ms 36444 KB Output is correct
24 Correct 90 ms 15952 KB Output is correct
25 Correct 91 ms 15952 KB Output is correct
26 Correct 90 ms 16080 KB Output is correct
27 Correct 527 ms 42908 KB Output is correct
28 Correct 544 ms 42912 KB Output is correct
29 Correct 569 ms 42932 KB Output is correct
30 Correct 564 ms 42916 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Incorrect 18 ms 2648 KB Solution announced impossible, but it is possible.
33 Halted 0 ms 0 KB -

Subtask #5
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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 KB Output is correct
17 Correct 428 ms 43168 KB Output is correct
18 Correct 411 ms 43424 KB Output is correct
19 Correct 407 ms 43700 KB Output is correct
20 Correct 524 ms 41772 KB Output is correct
21 Correct 525 ms 37660 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Incorrect 45 ms 4796 KB Solution announced impossible, but it is possible.
24 Halted 0 ms 0 KB -

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 348 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 177 ms 21432 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 83 ms 11596 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 36 ms 5972 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 178 ms 21608 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 473 ms 42992 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 159 ms 17244 KB Output is correct
29 Correct 255 ms 25528 KB Output is correct
30 Correct 347 ms 34316 KB Output is correct
31 Correct 458 ms 43144 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 172 ms 21568 KB Output is correct
46 Correct 277 ms 32556 KB Output is correct
47 Correct 267 ms 32392 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 604 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 604 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 464 ms 44504 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 2 ms 604 KB Output is correct
58 Correct 9 ms 1528 KB Output is correct
59 Correct 5 ms 1372 KB Output is correct
60 Correct 202 ms 22324 KB Output is correct
61 Correct 299 ms 30820 KB Output is correct
62 Correct 368 ms 36784 KB Output is correct
63 Correct 459 ms 44704 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 394 ms 44656 KB Output is correct
68 Correct 452 ms 44708 KB Output is correct
69 Correct 415 ms 44624 KB Output is correct
70 Correct 2 ms 860 KB Output is correct
71 Correct 4 ms 1200 KB Output is correct
72 Correct 176 ms 22096 KB Output is correct
73 Correct 284 ms 33320 KB Output is correct
74 Correct 414 ms 44808 KB Output is correct
75 Correct 437 ms 44548 KB Output is correct
76 Correct 438 ms 44628 KB Output is correct
77 Correct 3 ms 856 KB Output is correct
78 Correct 4 ms 1312 KB Output is correct
79 Correct 179 ms 22224 KB Output is correct
80 Correct 291 ms 33576 KB Output is correct
81 Correct 399 ms 44712 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 415 ms 43968 KB Output is correct
86 Correct 408 ms 43680 KB Output is correct
87 Correct 418 ms 43752 KB Output is correct
88 Correct 340 ms 36444 KB Output is correct
89 Correct 90 ms 15952 KB Output is correct
90 Correct 91 ms 15952 KB Output is correct
91 Correct 90 ms 16080 KB Output is correct
92 Correct 527 ms 42908 KB Output is correct
93 Correct 544 ms 42912 KB Output is correct
94 Correct 569 ms 42932 KB Output is correct
95 Correct 564 ms 42916 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Incorrect 18 ms 2648 KB Solution announced impossible, but it is possible.
98 Halted 0 ms 0 KB -