Submission #1083738

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1083738	2024-09-03T23:17:36 Z	rayan_bd	Connecting Supertrees (IOI20_supertrees)	C++17	21 / 100	140 ms	24148 KB

supertrees

#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;

vector<int> par(1015),sz(1015,1);

int findPar(int u){
	if(par[u]==u) return u;
	return par[u]=findPar(par[u]);
}

void unite(int u,int v){
	int ulp=findPar(u);
	int vlp=findPar(v);
	if(ulp==vlp) return;
	if(sz[ulp]>sz[vlp]){
		par[vlp]=ulp;
		sz[ulp]+=sz[vlp];
	}else{
		par[ulp]=vlp;
		sz[vlp]+=sz[ulp];
	}
}
bool is_samee(int u,int v){
	return findPar(u)==findPar(v);
}

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>> adj(n,vector<int>(n,0));

	for(int i=0;i<n;++i) par[i]=i;

	for(int i=0;i<n;++i){
		for(int j=i+1;j<n;++j){
			if(p[i][j]>0) unite(i,j); 
		}
	}

	for(int i=0;i<n;++i){
		for(int j=i+1;j<n;++j){
			if(p[i][j]==0&&is_samee(i,j)){
				return 0;
			}
		}
	}

	vector<int> last(n+1,-1);

	for(int i=0;i<n;++i){
		int ulp=findPar(i);
		if(last[ulp]!=-1){
			adj[i][last[ulp]]=1;
			adj[last[ulp]][i]=1;
		}
		last[ulp]=i;
	}


	build(adj);
	return 1;
}

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	344 KB	Output is correct
3	Correct	0 ms	444 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	5 ms	1372 KB	Output is correct
7	Correct	117 ms	24064 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	344 KB	Output is correct
3	Correct	0 ms	444 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	5 ms	1372 KB	Output is correct
7	Correct	117 ms	24064 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	7 ms	1340 KB	Output is correct
13	Correct	112 ms	24144 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	5 ms	860 KB	Output is correct
17	Correct	62 ms	14084 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	31 ms	6236 KB	Output is correct
21	Correct	120 ms	24148 KB	Output is correct
22	Correct	116 ms	24144 KB	Output is correct
23	Correct	122 ms	24144 KB	Output is correct
24	Correct	113 ms	24076 KB	Output is correct
25	Correct	55 ms	14092 KB	Output is correct
26	Correct	49 ms	14216 KB	Output is correct
27	Correct	123 ms	24144 KB	Output is correct
28	Correct	140 ms	24144 KB	Output is correct

Subtask #3
0 / 19.0

#	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	1 ms	348 KB	Output is correct
4	Incorrect	0 ms	348 KB	Answer gives possible 1 while actual possible 0
5	Halted	0 ms	0 KB	-

Subtask #4
0 / 35.0

#	Verdict	Memory	Grader output
1	Correct	344 KB	Output is correct
2	Incorrect	344 KB	Too few ways to get from 0 to 1, should be 2 found 1
3	Halted	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	344 KB	Output is correct
3	Correct	0 ms	444 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	5 ms	1372 KB	Output is correct
7	Correct	117 ms	24064 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	7 ms	1340 KB	Output is correct
13	Correct	112 ms	24144 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	5 ms	860 KB	Output is correct
17	Correct	62 ms	14084 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	31 ms	6236 KB	Output is correct
21	Correct	120 ms	24148 KB	Output is correct
22	Correct	116 ms	24144 KB	Output is correct
23	Correct	122 ms	24144 KB	Output is correct
24	Correct	113 ms	24076 KB	Output is correct
25	Correct	55 ms	14092 KB	Output is correct
26	Correct	49 ms	14216 KB	Output is correct
27	Correct	123 ms	24144 KB	Output is correct
28	Correct	140 ms	24144 KB	Output is correct
29	Correct	0 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	Incorrect	0 ms	348 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	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	444 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	5 ms	1372 KB	Output is correct
7	Correct	117 ms	24064 KB	Output is correct
8	Correct	0 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	7 ms	1340 KB	Output is correct
13	Correct	112 ms	24144 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	344 KB	Output is correct
16	Correct	5 ms	860 KB	Output is correct
17	Correct	62 ms	14084 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	31 ms	6236 KB	Output is correct
21	Correct	120 ms	24148 KB	Output is correct
22	Correct	116 ms	24144 KB	Output is correct
23	Correct	122 ms	24144 KB	Output is correct
24	Correct	113 ms	24076 KB	Output is correct
25	Correct	55 ms	14092 KB	Output is correct
26	Correct	49 ms	14216 KB	Output is correct
27	Correct	123 ms	24144 KB	Output is correct
28	Correct	140 ms	24144 KB	Output is correct
29	Correct	0 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	Incorrect	0 ms	348 KB	Answer gives possible 1 while actual possible 0
33	Halted	0 ms	0 KB	-

Submission #1083738

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 19.0

Subtask #4 0 / 35.0

Subtask #5 0 / 21.0

Subtask #6 0 / 4.0

Subtask #1
11.0 / 11.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 19.0

Subtask #4
0 / 35.0

Subtask #5
0 / 21.0

Subtask #6
0 / 4.0