oj.uz

Submission #951194

# Submission time Handle Problem Language Result Execution time Memory
951194 2024-03-21T10:49:12 Z Trisanu_Das Fountain Parks (IOI21_parks) C++17
30 / 100
 628 ms 46232 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 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 512 ms 44680 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 162 ms 17744 KB Output is correct
29 Correct 245 ms 26644 KB Output is correct
30 Correct 345 ms 35544 KB Output is correct
31 Correct 479 ms 44496 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 420 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 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 2 ms 604 KB Output is correct
45 Correct 175 ms 22496 KB Output is correct
46 Correct 266 ms 32324 KB Output is correct
47 Correct 278 ms 32652 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 512 ms 44680 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 162 ms 17744 KB Output is correct
29 Correct 245 ms 26644 KB Output is correct
30 Correct 345 ms 35544 KB Output is correct
31 Correct 479 ms 44496 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 420 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 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 2 ms 604 KB Output is correct
45 Correct 175 ms 22496 KB Output is correct
46 Correct 266 ms 32324 KB Output is correct
47 Correct 278 ms 32652 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 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 1 ms 348 KB Output is correct
55 Correct 504 ms 44536 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 3 ms 604 KB Output is correct
58 Correct 12 ms 1620 KB Output is correct
59 Correct 6 ms 1624 KB Output is correct
60 Correct 238 ms 22200 KB Output is correct
61 Correct 327 ms 30624 KB Output is correct
62 Correct 460 ms 36636 KB Output is correct
63 Correct 532 ms 44700 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 451 ms 44568 KB Output is correct
68 Correct 503 ms 44556 KB Output is correct
69 Correct 455 ms 44372 KB Output is correct
70 Correct 3 ms 860 KB Output is correct
71 Correct 5 ms 1116 KB Output is correct
72 Correct 180 ms 22192 KB Output is correct
73 Correct 307 ms 33580 KB Output is correct
74 Correct 407 ms 44448 KB Output is correct
75 Correct 452 ms 44624 KB Output is correct
76 Correct 445 ms 44568 KB Output is correct
77 Correct 3 ms 860 KB Output is correct
78 Correct 4 ms 1116 KB Output is correct
79 Correct 217 ms 22292 KB Output is correct
80 Correct 338 ms 33408 KB Output is correct
81 Correct 459 ms 44700 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct
17 Correct 1 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 445 ms 46232 KB Output is correct
21 Correct 426 ms 45820 KB Output is correct
22 Correct 436 ms 46168 KB Output is correct
23 Correct 369 ms 38312 KB Output is correct
24 Correct 120 ms 17736 KB Output is correct
25 Correct 98 ms 17560 KB Output is correct
26 Correct 111 ms 17632 KB Output is correct
27 Correct 565 ms 44548 KB Output is correct
28 Correct 618 ms 44452 KB Output is correct
29 Correct 628 ms 44452 KB Output is correct
30 Correct 582 ms 44548 KB Output is correct
31 Correct 0 ms 348 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 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct
17 Correct 474 ms 43192 KB Output is correct
18 Correct 461 ms 45632 KB Output is correct
19 Correct 437 ms 46136 KB Output is correct
20 Correct 593 ms 43352 KB Output is correct
21 Correct 596 ms 38856 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Incorrect 47 ms 5244 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 1 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 186 ms 21420 KB Output is correct
10 Correct 18 ms 2392 KB Output is correct
11 Correct 86 ms 11552 KB Output is correct
12 Correct 20 ms 3416 KB Output is correct
13 Correct 38 ms 5884 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 183 ms 21592 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 512 ms 44680 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 162 ms 17744 KB Output is correct
29 Correct 245 ms 26644 KB Output is correct
30 Correct 345 ms 35544 KB Output is correct
31 Correct 479 ms 44496 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 420 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 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 2 ms 604 KB Output is correct
45 Correct 175 ms 22496 KB Output is correct
46 Correct 266 ms 32324 KB Output is correct
47 Correct 278 ms 32652 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 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 1 ms 348 KB Output is correct
55 Correct 504 ms 44536 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 3 ms 604 KB Output is correct
58 Correct 12 ms 1620 KB Output is correct
59 Correct 6 ms 1624 KB Output is correct
60 Correct 238 ms 22200 KB Output is correct
61 Correct 327 ms 30624 KB Output is correct
62 Correct 460 ms 36636 KB Output is correct
63 Correct 532 ms 44700 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 0 ms 348 KB Output is correct
67 Correct 451 ms 44568 KB Output is correct
68 Correct 503 ms 44556 KB Output is correct
69 Correct 455 ms 44372 KB Output is correct
70 Correct 3 ms 860 KB Output is correct
71 Correct 5 ms 1116 KB Output is correct
72 Correct 180 ms 22192 KB Output is correct
73 Correct 307 ms 33580 KB Output is correct
74 Correct 407 ms 44448 KB Output is correct
75 Correct 452 ms 44624 KB Output is correct
76 Correct 445 ms 44568 KB Output is correct
77 Correct 3 ms 860 KB Output is correct
78 Correct 4 ms 1116 KB Output is correct
79 Correct 217 ms 22292 KB Output is correct
80 Correct 338 ms 33408 KB Output is correct
81 Correct 459 ms 44700 KB Output is correct
82 Correct 1 ms 344 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 445 ms 46232 KB Output is correct
86 Correct 426 ms 45820 KB Output is correct
87 Correct 436 ms 46168 KB Output is correct
88 Correct 369 ms 38312 KB Output is correct
89 Correct 120 ms 17736 KB Output is correct
90 Correct 98 ms 17560 KB Output is correct
91 Correct 111 ms 17632 KB Output is correct
92 Correct 565 ms 44548 KB Output is correct
93 Correct 618 ms 44452 KB Output is correct
94 Correct 628 ms 44452 KB Output is correct
95 Correct 582 ms 44548 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Incorrect 18 ms 2648 KB Solution announced impossible, but it is possible.
98 Halted 0 ms 0 KB -