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Submission #319749

# Submission time Handle Problem Language Result Execution time Memory
319749 2020-11-06T11:07:22 Z NicolaAbusaad2014 Connecting Supertrees (IOI20_supertrees) C++14
21 / 100
 280 ms 22244 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
vector<long>parent;
std::vector<std::vector<int> > answer;
long find_set(long x)
{
    if(parent[x]==x){
        return x;
    }
    long z=find_set(parent[x]);
    parent[x]=z;
    return z;
}
void union_set(long x,long z)
{
    x=find_set(x);
    z=find_set(z);
    if(x!=z){
        parent[z]=x;
        answer[x][z]=1;
        answer[z][x]=1;
    }
}
int construct(std::vector<std::vector<int> > p) {
	int n = p.size();
	for(long i=0;i<n;i++){
        parent.push_back(i);
	}
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	bool ok=true;
	for(long i=0;i<n;i++){
        for(long j=i+1;j<n;j++){
            if(p[i][j]==1){
                union_set(i,j);
            }
        }
	}
	for(long i=0;i<n;i++){
        for(long j=i+1;j<n;j++){
            if(p[i][j]==0){
                if(find_set(i)==find_set(j)){
                    ok=false;
                    i=n;
                    break;
                }
            }
        }
	}
	if(ok){
        build(answer);
        return 1;
	}
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1388 KB Output is correct
7 Correct 250 ms 22120 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1388 KB Output is correct
7 Correct 250 ms 22120 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 257 ms 22244 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 748 KB Output is correct
17 Correct 116 ms 12164 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 66 ms 5860 KB Output is correct
21 Correct 258 ms 22116 KB Output is correct
22 Correct 254 ms 22116 KB Output is correct
23 Correct 268 ms 22148 KB Output is correct
24 Correct 272 ms 22116 KB Output is correct
25 Correct 109 ms 12264 KB Output is correct
26 Correct 104 ms 12132 KB Output is correct
27 Correct 280 ms 22112 KB Output is correct
28 Correct 257 ms 22176 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Incorrect 1 ms 364 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Too few ways to get from 0 to 1, should be 2 found 0
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1388 KB Output is correct
7 Correct 250 ms 22120 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 257 ms 22244 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 748 KB Output is correct
17 Correct 116 ms 12164 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 66 ms 5860 KB Output is correct
21 Correct 258 ms 22116 KB Output is correct
22 Correct 254 ms 22116 KB Output is correct
23 Correct 268 ms 22148 KB Output is correct
24 Correct 272 ms 22116 KB Output is correct
25 Correct 109 ms 12264 KB Output is correct
26 Correct 104 ms 12132 KB Output is correct
27 Correct 280 ms 22112 KB Output is correct
28 Correct 257 ms 22176 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Incorrect 1 ms 364 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1388 KB Output is correct
7 Correct 250 ms 22120 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 396 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 257 ms 22244 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 748 KB Output is correct
17 Correct 116 ms 12164 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 66 ms 5860 KB Output is correct
21 Correct 258 ms 22116 KB Output is correct
22 Correct 254 ms 22116 KB Output is correct
23 Correct 268 ms 22148 KB Output is correct
24 Correct 272 ms 22116 KB Output is correct
25 Correct 109 ms 12264 KB Output is correct
26 Correct 104 ms 12132 KB Output is correct
27 Correct 280 ms 22112 KB Output is correct
28 Correct 257 ms 22176 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Incorrect 1 ms 364 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -