oj.uz

Submission #894879

# Submission time Handle Problem Language Result Execution time Memory
894879 2023-12-29T07:10:50 Z Jawad_Akbar_JJ Fountain Parks (IOI21_parks) C++17
15 / 100
 105 ms 49560 KB 
#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;











#include "parks.h"
#include <cstdio>
#include <cmath>
#include <cassert>
#include <vector>
#include <string>









const int N = 200000 + 10;

int seen[10][N];
int seen2[10][N];
int used[12][N];

int sn =  0;

vector<pair<int,int>> d = {{0,2},{2,0},{-2,0},{0,-2}};

vector<int> a,b,X,Y;
vector<pair<int,int>> up,nup;

void dfs(int i,int j){
	seen2[i][j] = true;
	sn++;
	for (auto [x,y] : d){
		int ni = i + x;
		int nj = j + y;
		if (!seen[ni][nj] or seen2[ni][nj])
			continue;
		if (i==ni and i==4)
			up.push_back({seen[i][j]-1,seen[ni][nj]-1});
		else
			nup.push_back({seen[i][j]-1,seen[ni][nj]-1});
		dfs(ni,nj);
	}
}

pair<int,int> det(int x1,int y1,int x2,int y2){
	if (x1 == x2){
		if (y1>y2)
			swap(y1,y2);
		if (x1 == 2)
			return {1,y1+1};
		if (x1 == 6)
			return {7,y1+1};
		if (used[3][y1-1] or used[3][y2 + 1])
			return {5,y1 + 1};
		return {3,y1 + 1};
	}
	if (x1>x2)
		swap(x1,x2);

	if (used[x1+1][y1-1])
		return {x1+1,y1+1};
	return {x1+1,y1-1};
}

int construct_roads(vector<int> x,vector<int> y){
	int n = x.size();
	int mny = 1e7,k;
	for (int i=0;i<n;i++){
		seen[x[i]][y[i]] = i+1;
		if (y[i]<mny)
			mny = y[i],k = x[i];
	}

	dfs(k,mny);

	if (sn!=n)
		return 0;

	sort(begin(up),end(up));
	for (auto [i,j] : up){
		auto [ii,jj] = det(x[i],y[i],x[j],y[j]);
		used[ii][jj] = true;
		a.push_back(i);
		b.push_back(j);
		X.push_back(ii);
		Y.push_back(jj);
	}
	for (auto [i,j] : nup){
		auto [ii,jj] = det(x[i],y[i],x[j],y[j]);
		used[ii][jj] = true;
		a.push_back(i);
		b.push_back(j);
		X.push_back(ii);
		Y.push_back(jj);
	}

	build(a,b,X,Y);
	return 1;
}

Compilation message

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:91:5: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   91 |  dfs(k,mny);
      |  ~~~^~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 103 ms 46412 KB Output is correct
24 Correct 1 ms 10588 KB Output is correct
25 Correct 3 ms 10956 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6504 KB Output is correct
28 Correct 41 ms 21204 KB Output is correct
29 Correct 74 ms 31696 KB Output is correct
30 Correct 85 ms 39692 KB Output is correct
31 Correct 105 ms 46324 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4440 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 6492 KB Output is correct
38 Correct 1 ms 6492 KB Output is correct
39 Correct 1 ms 4444 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 1 ms 4440 KB Output is correct
42 Correct 2 ms 8540 KB Output is correct
43 Correct 1 ms 4444 KB Output is correct
44 Correct 1 ms 6492 KB Output is correct
45 Correct 51 ms 26804 KB Output is correct
46 Correct 80 ms 34908 KB Output is correct
47 Correct 74 ms 34864 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 103 ms 46412 KB Output is correct
24 Correct 1 ms 10588 KB Output is correct
25 Correct 3 ms 10956 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6504 KB Output is correct
28 Correct 41 ms 21204 KB Output is correct
29 Correct 74 ms 31696 KB Output is correct
30 Correct 85 ms 39692 KB Output is correct
31 Correct 105 ms 46324 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4440 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 6492 KB Output is correct
38 Correct 1 ms 6492 KB Output is correct
39 Correct 1 ms 4444 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 1 ms 4440 KB Output is correct
42 Correct 2 ms 8540 KB Output is correct
43 Correct 1 ms 4444 KB Output is correct
44 Correct 1 ms 6492 KB Output is correct
45 Correct 51 ms 26804 KB Output is correct
46 Correct 80 ms 34908 KB Output is correct
47 Correct 74 ms 34864 KB Output is correct
48 Correct 1 ms 8536 KB Output is correct
49 Correct 1 ms 8536 KB Output is correct
50 Correct 1 ms 10588 KB Output is correct
51 Correct 2 ms 10584 KB Output is correct
52 Correct 2 ms 10728 KB Output is correct
53 Correct 2 ms 10588 KB Output is correct
54 Correct 1 ms 10684 KB Output is correct
55 Incorrect 97 ms 49560 KB Tree @(3, 133331) appears more than once: for edges on positions 99998 and 100000
56 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct
17 Runtime error 1 ms 348 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct
17 Runtime error 31 ms 6748 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 47 ms 24636 KB Output is correct
10 Correct 5 ms 8280 KB Output is correct
11 Correct 26 ms 16172 KB Output is correct
12 Correct 8 ms 9308 KB Output is correct
13 Correct 8 ms 8408 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 48 ms 24432 KB Output is correct
17 Correct 1 ms 6492 KB Output is correct
18 Correct 1 ms 6492 KB Output is correct
19 Correct 1 ms 6492 KB Output is correct
20 Correct 1 ms 6492 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 8540 KB Output is correct
23 Correct 103 ms 46412 KB Output is correct
24 Correct 1 ms 10588 KB Output is correct
25 Correct 3 ms 10956 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6504 KB Output is correct
28 Correct 41 ms 21204 KB Output is correct
29 Correct 74 ms 31696 KB Output is correct
30 Correct 85 ms 39692 KB Output is correct
31 Correct 105 ms 46324 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4440 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 6492 KB Output is correct
38 Correct 1 ms 6492 KB Output is correct
39 Correct 1 ms 4444 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 1 ms 4440 KB Output is correct
42 Correct 2 ms 8540 KB Output is correct
43 Correct 1 ms 4444 KB Output is correct
44 Correct 1 ms 6492 KB Output is correct
45 Correct 51 ms 26804 KB Output is correct
46 Correct 80 ms 34908 KB Output is correct
47 Correct 74 ms 34864 KB Output is correct
48 Correct 1 ms 8536 KB Output is correct
49 Correct 1 ms 8536 KB Output is correct
50 Correct 1 ms 10588 KB Output is correct
51 Correct 2 ms 10584 KB Output is correct
52 Correct 2 ms 10728 KB Output is correct
53 Correct 2 ms 10588 KB Output is correct
54 Correct 1 ms 10684 KB Output is correct
55 Incorrect 97 ms 49560 KB Tree @(3, 133331) appears more than once: for edges on positions 99998 and 100000
56 Halted 0 ms 0 KB -