oj.uz

Submission #915400

# Submission time Handle Problem Language Result Execution time Memory
915400 2024-01-23T19:52:25 Z chirathnirodha Connecting Supertrees (IOI20_supertrees) C++17
21 / 100
 157 ms 23648 KB 
#include "supertrees.h"
#include <vector>
using namespace std;
#define F first
#define S sedond
#define PB push_back
#define MP make_pair
#define	P push
#define I insert
typedef long long ll;
typedef long l;
typedef unsigned long long ull;
 
int uni[1000];
int fin(int x){
	if(uni[x]==x)return x;
	else return fin(uni[x]);
}
void merg(int x,int y){
	x=fin(x);
	y=fin(y);
	if(x<y)uni[y]=x;
	else uni[x]=y;
}
int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>>answer(n,vector<int>(n,0));
	for(int i=0;i<n;i++)uni[i]=i;
	for(int i=0;i<n;i++)for(int j=0;j<n;j++)if(p[i][j]==3)return 0;
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(p[i][j]==1 && fin(i)!=fin(j)){
				answer[i][j]=answer[j][i]=1;
				merg(i,j);
			}
		}
	}
	for(int i=0;i<n;i++){
		vector<int> v;v.PB(fin(i));
		for(int j=i+1;j<n;j++){
			if(p[i][j]==2 && fin(i)!=fin(j)){
				v.PB(fin(j));
				merg(i,j);
			}
		}
		if(v.size()==2)return 0;
		if(v.size()>2){
			for(int j=0;j<v.size()-1;j++){
				answer[v[j]][v[j+1]]=answer[v[j+1]][v[j]]=1;
			}
			answer[i][v.back()]=answer[v.back()][i];
		}
	}
	for(int i=0;i<n;i++)for(int j=i+1;j<n;j++)if(p[i][j]!=1 && fin(i)==fin(j))return 0;
	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:48:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |    for(int j=0;j<v.size()-1;j++){
      |                ~^~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 6 ms 1372 KB Output is correct
7 Correct 151 ms 23452 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 6 ms 1372 KB Output is correct
7 Correct 151 ms 23452 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 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 6 ms 1176 KB Output is correct
13 Correct 145 ms 23432 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13448 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 44 ms 6340 KB Output is correct
21 Correct 154 ms 23648 KB Output is correct
22 Correct 142 ms 23376 KB Output is correct
23 Correct 157 ms 23532 KB Output is correct
24 Correct 144 ms 23344 KB Output is correct
25 Correct 65 ms 13396 KB Output is correct
26 Correct 66 ms 13792 KB Output is correct
27 Correct 149 ms 23376 KB Output is correct
28 Correct 148 ms 23336 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 Incorrect 1 ms 428 KB Answer gives possible 0 while actual possible 1
6 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Answer gives possible 0 while actual possible 1
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 6 ms 1372 KB Output is correct
7 Correct 151 ms 23452 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 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 6 ms 1176 KB Output is correct
13 Correct 145 ms 23432 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13448 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 44 ms 6340 KB Output is correct
21 Correct 154 ms 23648 KB Output is correct
22 Correct 142 ms 23376 KB Output is correct
23 Correct 157 ms 23532 KB Output is correct
24 Correct 144 ms 23344 KB Output is correct
25 Correct 65 ms 13396 KB Output is correct
26 Correct 66 ms 13792 KB Output is correct
27 Correct 149 ms 23376 KB Output is correct
28 Correct 148 ms 23336 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Incorrect 1 ms 428 KB Answer gives possible 0 while actual possible 1
34 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 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 6 ms 1372 KB Output is correct
7 Correct 151 ms 23452 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 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 6 ms 1176 KB Output is correct
13 Correct 145 ms 23432 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 13448 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 600 KB Output is correct
20 Correct 44 ms 6340 KB Output is correct
21 Correct 154 ms 23648 KB Output is correct
22 Correct 142 ms 23376 KB Output is correct
23 Correct 157 ms 23532 KB Output is correct
24 Correct 144 ms 23344 KB Output is correct
25 Correct 65 ms 13396 KB Output is correct
26 Correct 66 ms 13792 KB Output is correct
27 Correct 149 ms 23376 KB Output is correct
28 Correct 148 ms 23336 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Incorrect 1 ms 428 KB Answer gives possible 0 while actual possible 1
34 Halted 0 ms 0 KB -