oj.uz

Submission #1024153

# Submission time Handle Problem Language Result Execution time Memory
1024153 2024-07-15T14:09:10 Z XJP12 Connecting Supertrees (IOI20_supertrees) C++14
21 / 100
 158 ms 24148 KB 
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
int m;
struct UF{
	vi e;
	vi con;
	UF(int n){ e.assign(n,-1); con.assign(n,0);}
 
	int find(int x){ return (e[x] < 0 ? x : find(e[x])); }
 
	void _union(int a, int b){
		int x = find(a);
		int y = find(b);
		if(x == y) return;
		if(e[x] > e[y]) swap(x,y);
		e[x] += e[y];
		e[y] = x;
	}
};
int construct(vvi p){
	m = (int)p.size();
	int ban=0;
	UF fu(m);
	vvi ans(m, vi(m,0));
	vector<set<int>> coneect(m, set<int>());
	vvi conect(m, vi());
	for(int i=0; i<m; i++){
		for(int j=i; j<m; j++){
			if(i==j)  continue;
			if(p[i][j]==1 && ban==0){
				ban=1;
			}
			if(p[i][j]==2 && ban==0){
				ban=2;
			}
			if(p[i][j]!=0){
				fu._union(i, j);
			}
		}
	}
	for(int i=0; i<m; i++){
		for(int j=i; j<m; j++){
			if(p[i][j]==0){
				if(fu.find(i)==fu.find(j)){
					return 0;
				}
			}else{
				int t = fu.find(i);
				int size=(int)coneect[t].size();
				coneect[t].insert(i);
				if((int)coneect[t].size() > size) {conect[t].push_back(i); size++;}
				coneect[t].insert(j);
				if((int)coneect[t].size() > size) {conect[t].push_back(j); size++;}
			}
		}
	}
	for(int i=0; i<m; i++){
		if(ban==2 && (int)conect[i].size()==2){
			return 0;
		}
		for(int j=0; j<(int)conect[i].size()-1; j++){
			ans[conect[i][j+1]][conect[i][j]]=1;
			ans[conect[i][j]][conect[i][j+1]]=1;
		}
		if(ban==2){
			ans[conect[i][(int)conect.size()-1]][conect[i][0]]=1;
			ans[conect[i][0]][conect[i][(int)conect.size()-1]]=1;
		}
	}
	for(int i=0; i<m; i++){
		ans[i][i]=0;
	}
	build(ans);
	return 1;
}

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 436 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 142 ms 24148 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 436 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 142 ms 24148 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 129 ms 24144 KB Output is correct
14 Correct 0 ms 436 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 14076 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6312 KB Output is correct
21 Correct 154 ms 24148 KB Output is correct
22 Correct 158 ms 24148 KB Output is correct
23 Correct 131 ms 24144 KB Output is correct
24 Correct 146 ms 24080 KB Output is correct
25 Correct 50 ms 14220 KB Output is correct
26 Correct 48 ms 14092 KB Output is correct
27 Correct 139 ms 24148 KB Output is correct
28 Correct 129 ms 24076 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Runtime error 1 ms 348 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Runtime error 0 ms 348 KB Execution killed with signal 11
3 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 436 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 142 ms 24148 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 129 ms 24144 KB Output is correct
14 Correct 0 ms 436 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 14076 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6312 KB Output is correct
21 Correct 154 ms 24148 KB Output is correct
22 Correct 158 ms 24148 KB Output is correct
23 Correct 131 ms 24144 KB Output is correct
24 Correct 146 ms 24080 KB Output is correct
25 Correct 50 ms 14220 KB Output is correct
26 Correct 48 ms 14092 KB Output is correct
27 Correct 139 ms 24148 KB Output is correct
28 Correct 129 ms 24076 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Runtime error 1 ms 348 KB Execution killed with signal 11
34 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 436 KB Output is correct
6 Correct 6 ms 1372 KB Output is correct
7 Correct 142 ms 24148 KB Output is correct
8 Correct 0 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 129 ms 24144 KB Output is correct
14 Correct 0 ms 436 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 57 ms 14076 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6312 KB Output is correct
21 Correct 154 ms 24148 KB Output is correct
22 Correct 158 ms 24148 KB Output is correct
23 Correct 131 ms 24144 KB Output is correct
24 Correct 146 ms 24080 KB Output is correct
25 Correct 50 ms 14220 KB Output is correct
26 Correct 48 ms 14092 KB Output is correct
27 Correct 139 ms 24148 KB Output is correct
28 Correct 129 ms 24076 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Runtime error 1 ms 348 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -