oj.uz

Submission #794299

# Submission time Handle Problem Language Result Execution time Memory
794299 2023-07-26T12:15:49 Z MODDI Connecting Supertrees (IOI20_supertrees) C++17
40 / 100
 215 ms 22060 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
struct DSU{
	vi parent, size;
	vector<bool> kec, dvojka;
	void init(int n){
		kec.resize(n, false);
		dvojka.resize(n, false);
		for(int i = 0; i < n; i++){
			parent.pb(i);
			size.pb(1);
		}
	}
	bool is_dva(int v){
		return dvojka[v];
	}
	int get_size(int v){
		return size[v];
	}
	int find_parent(int v){
		if(parent[v] == v)	return v;
		return parent[v] = find_parent(parent[v]);
	}
	void merge(int a, int b, int tip){
		a = find_parent(a);
		b = find_parent(b);
		bool done = false;
		if(a != b){
			if(size[b] > size[a])
				swap(a, b);
			
			done = true;
			if(tip == 1)	kec[a] = true;
			if(tip == 2)	dvojka[a] = true;	
			parent[b] = a;
			size[a] += size[b];
		}
		if(!done){
			if(tip == 1)	kec[a] = true;
			if(tip == 2) 	dvojka[a] = true;
		}
	}
};
int construct(vector<vi> p) {
	int n = p.size();
	vector<vi> answer;
	bool possible = true;
	for(int i = 0; i < n; i++){
		for(auto t : p[i]){
			if(t == 3)	possible = false;
		}
	}
	for(int i = 0; i < n; i++){
		vi pom(n,0);
		answer.pb(pom);
	}
	DSU dsu1, dsu2;
	dsu1.init(n);
	dsu2.init(n);
	for(int i = 0; i < n; i++){
		for(int j = i + 1; j < n; j++){
			if(p[i][j] ==  1)
				dsu1.merge(i, j, 1);
			else if(p[i][j] == 2)
				dsu2.merge(i, j, 2);
		}
	}
	//assert(false);
	for(int i = 0; i < n; i++){
		for(int j = i + 1; j < n; j++){
			if(dsu1.find_parent(i) == dsu1.find_parent(j) && p[i][j] == 0)
				possible = false;
			if(dsu2.find_parent(i) == dsu2.find_parent(j) && p[i][j] == 0)
				possible = false;
			if(p[i][j] == 2 && dsu1.find_parent(i) == dsu1.find_parent(j))
				possible = false;
		}
	}
	//assert(false);
	int first[n], last[n];
	memset(first, -1, sizeof first);
	memset(last, -1, sizeof last);
	for(int i = 0; i < n; i++){
		int a = dsu2.find_parent(i);
		//cout<<i<<" "<<a<<endl;
		if(last[a] == -1){
			last[a] = i;
			first[a] = i;
		}
		else{
			//cout<<"HERE"<<endl;
			answer[i][last[a]] = 1;
			answer[last[a]][i] = 1;
			last[a] = i;
		}
	}
	//assert(false);
	for(int i = 0; i < n; i++){
		int a = dsu2.find_parent(i);
		if(dsu2.get_size(a) < 3 && dsu2.get_size(a) > 1)	possible = false;
		else if(dsu2.get_size(a) >= 3){
			answer[last[a]][first[a]] = 1;
			answer[first[a]][last[a]] = 1;
		}
	}
	memset(last, -1, sizeof last);
	for(int i = 0; i < n; i++){
		int a = dsu1.find_parent(i);
		if(last[a] == -1)	last[a] = i;
		else{
			//cout<<i<<" "<<last[a]<<" "<<endl;
			answer[i][last[a]] = 1;
			answer[last[a]][i] = 1;
			last[a] = i;
		}
	}
	if(!possible)	return 0;
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 10 ms 1128 KB Output is correct
7 Correct 177 ms 21964 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 10 ms 1128 KB Output is correct
7 Correct 177 ms 21964 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 151 ms 22028 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 92 ms 12164 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5764 KB Output is correct
21 Correct 175 ms 22020 KB Output is correct
22 Correct 147 ms 21964 KB Output is correct
23 Correct 161 ms 22024 KB Output is correct
24 Correct 193 ms 22032 KB Output is correct
25 Correct 63 ms 12168 KB Output is correct
26 Correct 66 ms 12160 KB Output is correct
27 Correct 158 ms 22032 KB Output is correct
28 Correct 185 ms 22020 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 9 ms 1196 KB Output is correct
9 Correct 155 ms 22040 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 163 ms 22024 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 85 ms 12164 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 38 ms 5764 KB Output is correct
22 Correct 167 ms 22020 KB Output is correct
23 Correct 164 ms 22028 KB Output is correct
24 Correct 168 ms 22036 KB Output is correct
25 Correct 62 ms 12128 KB Output is correct
26 Correct 68 ms 12128 KB Output is correct
27 Correct 160 ms 22020 KB Output is correct
28 Correct 168 ms 21964 KB Output is correct
29 Correct 62 ms 12164 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 39 ms 5772 KB Output is correct
5 Correct 181 ms 21956 KB Output is correct
6 Correct 151 ms 22016 KB Output is correct
7 Correct 167 ms 21960 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 39 ms 5704 KB Output is correct
10 Correct 215 ms 22060 KB Output is correct
11 Correct 155 ms 22036 KB Output is correct
12 Correct 178 ms 22052 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Incorrect 0 ms 212 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
16 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 10 ms 1128 KB Output is correct
7 Correct 177 ms 21964 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 151 ms 22028 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 92 ms 12164 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5764 KB Output is correct
21 Correct 175 ms 22020 KB Output is correct
22 Correct 147 ms 21964 KB Output is correct
23 Correct 161 ms 22024 KB Output is correct
24 Correct 193 ms 22032 KB Output is correct
25 Correct 63 ms 12168 KB Output is correct
26 Correct 66 ms 12160 KB Output is correct
27 Correct 158 ms 22032 KB Output is correct
28 Correct 185 ms 22020 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 9 ms 1196 KB Output is correct
37 Correct 155 ms 22040 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 163 ms 22024 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 724 KB Output is correct
45 Correct 85 ms 12164 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 5764 KB Output is correct
50 Correct 167 ms 22020 KB Output is correct
51 Correct 164 ms 22028 KB Output is correct
52 Correct 168 ms 22036 KB Output is correct
53 Correct 62 ms 12128 KB Output is correct
54 Correct 68 ms 12128 KB Output is correct
55 Correct 160 ms 22020 KB Output is correct
56 Correct 168 ms 21964 KB Output is correct
57 Correct 62 ms 12164 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 3 ms 724 KB Output is correct
61 Correct 76 ms 12160 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Incorrect 42 ms 5752 KB Too many ways to get from 1 to 269, should be 1 found no less than 2
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 10 ms 1128 KB Output is correct
7 Correct 177 ms 21964 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 151 ms 22028 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 724 KB Output is correct
17 Correct 92 ms 12164 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5764 KB Output is correct
21 Correct 175 ms 22020 KB Output is correct
22 Correct 147 ms 21964 KB Output is correct
23 Correct 161 ms 22024 KB Output is correct
24 Correct 193 ms 22032 KB Output is correct
25 Correct 63 ms 12168 KB Output is correct
26 Correct 66 ms 12160 KB Output is correct
27 Correct 158 ms 22032 KB Output is correct
28 Correct 185 ms 22020 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 9 ms 1196 KB Output is correct
37 Correct 155 ms 22040 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 7 ms 1108 KB Output is correct
41 Correct 163 ms 22024 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 724 KB Output is correct
45 Correct 85 ms 12164 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 5764 KB Output is correct
50 Correct 167 ms 22020 KB Output is correct
51 Correct 164 ms 22028 KB Output is correct
52 Correct 168 ms 22036 KB Output is correct
53 Correct 62 ms 12128 KB Output is correct
54 Correct 68 ms 12128 KB Output is correct
55 Correct 160 ms 22020 KB Output is correct
56 Correct 168 ms 21964 KB Output is correct
57 Correct 62 ms 12164 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 39 ms 5772 KB Output is correct
62 Correct 181 ms 21956 KB Output is correct
63 Correct 151 ms 22016 KB Output is correct
64 Correct 167 ms 21960 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 39 ms 5704 KB Output is correct
67 Correct 215 ms 22060 KB Output is correct
68 Correct 155 ms 22036 KB Output is correct
69 Correct 178 ms 22052 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Incorrect 0 ms 212 KB Too many ways to get from 0 to 4, should be 1 found no less than 2
73 Halted 0 ms 0 KB -