oj.uz

Submission #1079269

# Submission time Handle Problem Language Result Execution time Memory
1079269 2024-08-28T12:29:23 Z Jawad_Akbar_JJ Connecting Supertrees (IOI20_supertrees) C++17
40 / 100
 155 ms 22248 KB 
#include <iostream>
#include <vector>
#include <algorithm>

#include "supertrees.h"

using namespace std;
const int NN = 1005;
int seen[NN];

int construct(vector<vector<int>> p){
	int n = p.size();
	vector<vector<int>> ans(n, vector<int> (n, 0)), comp, comp2;
	vector<int> out;

	int z = 0, o = 0, t = 0, th = 0; 
	for (int i=0;i<n;i++)
		for (int j=0;j<n;j++){
			z += p[i][j] == 0;
			o += p[i][j] == 1;
			t += p[i][j] == 2;
			th += p[i][j] == 3;
		}

	if (o and z + t + th == 0){
		for (int i=1;i<n;i++)
			ans[i-1][i] = ans[i][i-1] = 1;
		build(ans);
		return 1;
	}

	if (t + th == 0){

		for (int i=0;i<n;i++){
			int mx = 0, ind = -1;
			for (int k=0;k<comp.size();k++){
				int cnt = 0;
				for (int j : comp[k])
					cnt += p[i][j];
				if (cnt == 0)
					continue;
				if (mx > 0 or cnt != comp[k].size())
					return 0;
				ind = k;
				mx = cnt;
			}
			if (ind == -1)
				comp.push_back({i});
			else
				comp[ind].push_back(i);
		}

		for (auto v : comp)
			for (int j=1;j<v.size();j++)
				ans[v[j-1]][v[j]] = ans[v[j]][v[j-1]] = 1;
		build(ans);
		return 1;
	}

	if (o == n and th == 0){
		for (int i=0;i<n;i++){
			int mx = 0, ind = -1;
			for (int k=0;k<comp.size();k++){
				int cnt = 0;
				for (int j : comp[k])
					cnt += p[i][j] == 2;
				if (cnt == 0)
					continue;
				if (mx > 0 or cnt != comp[k].size())
					return 0;
				ind = k;
				mx = cnt;
			}
			if (ind == -1)
				comp.push_back({i});
			else
				comp[ind].push_back(i);
		}

		for (auto v : comp){
			for (int j=1;j<v.size();j++)
				ans[v[j-1]][v[j]] = ans[v[j]][v[j-1]] = 1;
			if (v.size() > 1)
				ans[v.back()][v[0]] = ans[v[0]][v.back()] = 1;
			if (v.size() == 2)
				return 0;
		}
		build(ans);
		return 1;
	}
	vector<pair<int,int>> vec;
	if (th == 0){
		for (int i=0;i<n;i++){
			int mx = 0, ind = -1;
			for (int k=0;k<comp.size();k++){
				int cnt = 0;
				for (int j : comp[k])
					cnt += p[i][j] == 2;
				if (cnt == 0)
					continue;
				if (cnt == comp[k].size()){
					ind = k;
					mx = cnt;
				}
			}
			if (ind == -1)
				comp.push_back({i});
			else
				comp[ind].push_back(i);
		}
		for (int i=0;i<comp.size();i++)
			vec.push_back({comp[i].size(), i});
		sort(begin(vec), end(vec));

		for (auto [sz, idx] : vec){
			vector<int> v = comp[idx];
			if (v.size() > 2){
				bool poss = 1;
				for (int i : v){
					if (seen[i])
						poss = 0;
					seen[i] = 1;
				}
				if (!poss)
					continue;
				for (int j=1;j<v.size();j++)
					ans[v[j-1]][v[j]] = ans[v[j]][v[j-1]] = 1;
				ans[v.back()][v[0]] = ans[v[0]][v.back()] = 1;
				for (int i : v){
					for (int j=0;j<n;j++)
						if (i != j and p[i][j] == 1 and !seen[j])
							ans[i][j] = ans[j][i] = seen[j] = 1;
				}
			}
		}
		comp.clear();

		for (int i=0;i<n;i++){
			if (seen[i])
				continue;
			int mx = 0, ind = -1;
			for (int k=0;k<comp.size();k++){
				int cnt = 0;
				for (int j : comp[k])
					cnt += p[i][j] == 1;
				if (cnt == 0)
					continue;
				if (cnt == comp[k].size()){
					ind = k;
					mx = cnt;
				}
			}
			if (ind == -1)
				comp.push_back({i});
			else
				comp[ind].push_back(i);
		}

		for (auto v : comp){
			for (int j=1;j<v.size();j++)
				ans[v[j-1]][v[j]] = ans[v[j]][v[j-1]] = 1;
		}

		build(ans);
		return 1;
	}

}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |    for (int k=0;k<comp.size();k++){
      |                 ~^~~~~~~~~~~~
supertrees.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     if (mx > 0 or cnt != comp[k].size())
      |                   ~~~~^~~~~~~~~~~~~~~~~
supertrees.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |    for (int j=1;j<v.size();j++)
      |                 ~^~~~~~~~~
supertrees.cpp:63:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |    for (int k=0;k<comp.size();k++){
      |                 ~^~~~~~~~~~~~
supertrees.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |     if (mx > 0 or cnt != comp[k].size())
      |                   ~~~~^~~~~~~~~~~~~~~~~
supertrees.cpp:81:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |    for (int j=1;j<v.size();j++)
      |                 ~^~~~~~~~~
supertrees.cpp:95:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |    for (int k=0;k<comp.size();k++){
      |                 ~^~~~~~~~~~~~
supertrees.cpp:101:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     if (cnt == comp[k].size()){
      |         ~~~~^~~~~~~~~~~~~~~~~
supertrees.cpp:94:8: warning: variable 'mx' set but not used [-Wunused-but-set-variable]
   94 |    int mx = 0, ind = -1;
      |        ^~
supertrees.cpp:111:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |   for (int i=0;i<comp.size();i++)
      |                ~^~~~~~~~~~~~
supertrees.cpp:126:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  126 |     for (int j=1;j<v.size();j++)
      |                  ~^~~~~~~~~
supertrees.cpp:142:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  142 |    for (int k=0;k<comp.size();k++){
      |                 ~^~~~~~~~~~~~
supertrees.cpp:148:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  148 |     if (cnt == comp[k].size()){
      |         ~~~~^~~~~~~~~~~~~~~~~
supertrees.cpp:141:8: warning: variable 'mx' set but not used [-Wunused-but-set-variable]
  141 |    int mx = 0, ind = -1;
      |        ^~
supertrees.cpp:160:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |    for (int j=1;j<v.size();j++)
      |                 ~^~~~~~~~~
supertrees.cpp:13:47: warning: control reaches end of non-void function [-Wreturn-type]
   13 |  vector<vector<int>> ans(n, vector<int> (n, 0)), comp, comp2;
      |                                               ^

Subtask #1
11.0 / 11.0

# 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 5 ms 1116 KB Output is correct
7 Correct 119 ms 22100 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 5 ms 1116 KB Output is correct
7 Correct 119 ms 22100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 116 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 55 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 5712 KB Output is correct
21 Correct 116 ms 22040 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 127 ms 22040 KB Output is correct
24 Correct 113 ms 22044 KB Output is correct
25 Correct 50 ms 12280 KB Output is correct
26 Correct 49 ms 12112 KB Output is correct
27 Correct 123 ms 22024 KB Output is correct
28 Correct 113 ms 22100 KB Output is correct

Subtask #3
19.0 / 19.0

# 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 1 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 5 ms 1116 KB Output is correct
9 Correct 132 ms 22096 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 11 ms 1116 KB Output is correct
13 Correct 134 ms 22248 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 59 ms 12056 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 62 ms 5808 KB Output is correct
22 Correct 117 ms 22044 KB Output is correct
23 Correct 123 ms 22100 KB Output is correct
24 Correct 155 ms 22080 KB Output is correct
25 Correct 57 ms 12112 KB Output is correct
26 Correct 56 ms 12040 KB Output is correct
27 Correct 130 ms 22044 KB Output is correct
28 Correct 143 ms 22040 KB Output is correct
29 Correct 53 ms 12312 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 40 ms 5896 KB Output is correct
5 Correct 128 ms 22024 KB Output is correct
6 Correct 122 ms 22136 KB Output is correct
7 Correct 122 ms 22044 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 28 ms 5692 KB Output is correct
10 Correct 138 ms 22096 KB Output is correct
11 Correct 144 ms 22028 KB Output is correct
12 Correct 122 ms 22096 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Incorrect 0 ms 348 KB Too few ways to get from 0 to 1, should be 2 found 0
16 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 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 5 ms 1116 KB Output is correct
7 Correct 119 ms 22100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 116 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 55 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 5712 KB Output is correct
21 Correct 116 ms 22040 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 127 ms 22040 KB Output is correct
24 Correct 113 ms 22044 KB Output is correct
25 Correct 50 ms 12280 KB Output is correct
26 Correct 49 ms 12112 KB Output is correct
27 Correct 123 ms 22024 KB Output is correct
28 Correct 113 ms 22100 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1116 KB Output is correct
37 Correct 132 ms 22096 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 11 ms 1116 KB Output is correct
41 Correct 134 ms 22248 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 59 ms 12056 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 62 ms 5808 KB Output is correct
50 Correct 117 ms 22044 KB Output is correct
51 Correct 123 ms 22100 KB Output is correct
52 Correct 155 ms 22080 KB Output is correct
53 Correct 57 ms 12112 KB Output is correct
54 Correct 56 ms 12040 KB Output is correct
55 Correct 130 ms 22044 KB Output is correct
56 Correct 143 ms 22040 KB Output is correct
57 Correct 53 ms 12312 KB Output is correct
58 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
59 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 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 5 ms 1116 KB Output is correct
7 Correct 119 ms 22100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 116 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 55 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 5712 KB Output is correct
21 Correct 116 ms 22040 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 127 ms 22040 KB Output is correct
24 Correct 113 ms 22044 KB Output is correct
25 Correct 50 ms 12280 KB Output is correct
26 Correct 49 ms 12112 KB Output is correct
27 Correct 123 ms 22024 KB Output is correct
28 Correct 113 ms 22100 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1116 KB Output is correct
37 Correct 132 ms 22096 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 11 ms 1116 KB Output is correct
41 Correct 134 ms 22248 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 59 ms 12056 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 62 ms 5808 KB Output is correct
50 Correct 117 ms 22044 KB Output is correct
51 Correct 123 ms 22100 KB Output is correct
52 Correct 155 ms 22080 KB Output is correct
53 Correct 57 ms 12112 KB Output is correct
54 Correct 56 ms 12040 KB Output is correct
55 Correct 130 ms 22044 KB Output is correct
56 Correct 143 ms 22040 KB Output is correct
57 Correct 53 ms 12312 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 40 ms 5896 KB Output is correct
62 Correct 128 ms 22024 KB Output is correct
63 Correct 122 ms 22136 KB Output is correct
64 Correct 122 ms 22044 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 28 ms 5692 KB Output is correct
67 Correct 138 ms 22096 KB Output is correct
68 Correct 144 ms 22028 KB Output is correct
69 Correct 122 ms 22096 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Incorrect 0 ms 348 KB Too few ways to get from 0 to 1, should be 2 found 0
73 Halted 0 ms 0 KB -