oj.uz

Submission #895083

# Submission time Handle Problem Language Result Execution time Memory
895083 2023-12-29T11:45:54 Z Muhammad_Aneeq Fountain Parks (IOI21_parks) C++17
5 / 100
 686 ms 43720 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,y+2);
		check(x-2,y);
		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;
	}
	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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 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 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 481 ms 43028 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 740 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 161 ms 17140 KB Output is correct
29 Correct 252 ms 25520 KB Output is correct
30 Correct 363 ms 34264 KB Output is correct
31 Correct 451 ms 42852 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 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 Incorrect 138 ms 15288 KB Solution announced impossible, but it is possible.
46 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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 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 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 481 ms 43028 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 740 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 161 ms 17140 KB Output is correct
29 Correct 252 ms 25520 KB Output is correct
30 Correct 363 ms 34264 KB Output is correct
31 Correct 451 ms 42852 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 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 Incorrect 138 ms 15288 KB Solution announced impossible, but it is possible.
46 Halted 0 ms 0 KB -

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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 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 443 ms 43720 KB Output is correct
21 Correct 423 ms 43540 KB Output is correct
22 Correct 417 ms 43676 KB Output is correct
23 Correct 352 ms 36468 KB Output is correct
24 Correct 101 ms 15976 KB Output is correct
25 Correct 94 ms 16008 KB Output is correct
26 Correct 98 ms 15908 KB Output is correct
27 Correct 564 ms 42936 KB Output is correct
28 Correct 580 ms 42912 KB Output is correct
29 Correct 686 ms 42908 KB Output is correct
30 Incorrect 501 ms 30164 KB Solution announced impossible, but it is possible.
31 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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 KB Output is correct
17 Correct 456 ms 43208 KB Output is correct
18 Correct 466 ms 43420 KB Output is correct
19 Correct 437 ms 43680 KB Output is correct
20 Correct 548 ms 41796 KB Output is correct
21 Correct 556 ms 37524 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Incorrect 45 ms 4784 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 1 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 174 ms 21404 KB Output is correct
10 Correct 13 ms 2396 KB Output is correct
11 Correct 85 ms 11816 KB Output is correct
12 Correct 20 ms 3672 KB Output is correct
13 Correct 38 ms 5856 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 193 ms 21416 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 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 481 ms 43028 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 2 ms 740 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 161 ms 17140 KB Output is correct
29 Correct 252 ms 25520 KB Output is correct
30 Correct 363 ms 34264 KB Output is correct
31 Correct 451 ms 42852 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 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 Incorrect 138 ms 15288 KB Solution announced impossible, but it is possible.
46 Halted 0 ms 0 KB -