oj.uz

Submission #300434

# Submission time Handle Problem Language Result Execution time Memory
300434 2020-09-17T07:14:12 Z faustaadp Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 292 ms 26232 KB 
#include "supertrees.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
const ll NN = 1e3 + 5;
ll n, bisa = 1, p[NN], x[NN], kel[NN], ket[NN];
std::vector<std::vector<int>> answer;
vector<ll> v[NN];
std::vector<std::vector<int>> px;
ll car(ll pos)
{
	if(p[pos] == pos)
		return pos;
	else
		return p[pos] = car(p[pos]);
}
int construct(std::vector<std::vector<int>> pt) {
	px = pt;
	n = px.size();
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n, 0);
		answer.push_back(row);
	}
	for (int i = 0; i < n; i++) 
		p[i] = i;
	for (int i = 0; i < n; i++) 
		for (int j = i + 1; j < n; j++) 
			if(px[i][j])
				p[car(i)] = car(j); 
	for (int i = 0; i < n; i++) 
		v[car(i)].pb(i);
	for (int i = 0; i < n; i++) 
	{
		if(!bisa)
			break;
		ll sz = v[i].size();
		x[0] = 0;
		x[1] = 0;
		x[2] = 0;
		x[3] = 0;
		for(ll j = 0; j < sz; j++)
			for(ll k = j + 1; k < sz; k++)
				x[px[v[i][j]][v[i][k]]] = 1;
		if(x[0] + x[1] + x[2] + x[3] == 0) 
			continue;
		else
		if(x[0])
			bisa = 0;
		else
		if(x[2] == 1 && x[3] == 1)
			bisa = 0;
		else
		if(x[1] == 1 && x[2] == 0 && x[3] == 0)
		{
			for(ll j = 1; j < sz; j++)
			{
				answer[v[i][j - 1]][v[i][j]] = 1;
				answer[v[i][j]][v[i][j - 1]] = 1;
			}
		}
		else
		if(x[2] == 1 && x[1] == 0)
		{
			if(sz <= 2)
				bisa = 0;
			else
			{
				for(ll j = 0; j < sz; j++)
				{
					answer[v[i][j]][v[i][(j + 1) % sz]] = 1;
					answer[v[i][(j + 1) % sz]][v[i][j]] = 1;
				}
			}
		}
		else
		if(x[2] == 1 && x[1] == 1)
		{
			ll te = 0;
			for(ll j = 0; j < sz; j++)
			{
				if(kel[v[i][j]])
					continue;
				te++;
				kel[v[i][j]] = te;
				ket[te] = v[i][j];
				// cout << te << " " << ket[te] << "_\n"
				for(ll k = 0; k < sz; k++)
				{
					if(j == k)
						continue;
					if(px[v[i][j]][v[i][k]] == 1)
					{
						kel[v[i][k]] = te;
						// cout << v[i][j] << " " << v[i][k] << "_\n";
						answer[v[i][j]][v[i][k]] = 1;
						answer[v[i][k]][v[i][j]] = 1;
					}
				}
			}
			for(ll j = 0; j < sz; j++)
				for(ll k = j + 1; k < sz; k++)
				{
					if(px[v[i][j]][v[i][k]] == 1 && kel[v[i][j]] != kel[v[i][k]])
						bisa = 0;
					if(px[v[i][j]][v[i][k]] != 1 && kel[v[i][j]] == kel[v[i][k]])
						bisa = 0;
				}
			if(te <= 2)
				bisa = 0;
			if(!bisa)
				break;
			for(ll j = 1; j < te; j++)
			{
				// cout << ket[j] << " " << ket[j + 1] << "_\n";
				answer[ket[j]][ket[j + 1]] = 1;
				answer[ket[j + 1]][ket[j]] = 1;
			}
			answer[ket[te]][ket[1]] = 1;
			answer[ket[1]][ket[te]] = 1;
		}
		else
		if(x[3] == 1)
		{
			ll te = 0;
			for(ll j = 0; j < sz; j++)
			{
				if(kel[v[i][j]])
					continue;
				te++;
				kel[v[i][j]] = te;
				ket[te] = v[i][j];
				// cout << te << " " << ket[te] << "_\n"
				for(ll k = 0; k < sz; k++)
				{
					if(j == k)
						continue;
					if(px[v[i][j]][v[i][k]] == 1)
					{
						kel[v[i][k]] = te;
						// cout << v[i][j] << " " << v[i][k] << "_\n";
						answer[v[i][j]][v[i][k]] = 1;
						answer[v[i][k]][v[i][j]] = 1;
					}
				}
			}
			if(te <= 4)
				bisa = 0;
			for(ll j = 0; j < sz; j++)
				for(ll k = j + 1; k < sz; k++)
				{
					if(px[v[i][j]][v[i][k]] == 1 && kel[v[i][j]] != kel[v[i][k]])
						bisa = 0;
					if(px[v[i][j]][v[i][k]] != 1 && kel[v[i][j]] == kel[v[i][k]])
						bisa = 0;
				}
			if(!bisa)
				break;
			for(ll j = 1; j < te; j++)
			{
				// cout << ket[j] << " " << ket[j + 1] << "_\n";
				answer[ket[j]][ket[j + 1]] = 1;
				answer[ket[j + 1]][ket[j]] = 1;
			}
			answer[ket[te]][ket[1]] = 1;
			answer[ket[1]][ket[te]] = 1;
			answer[ket[te]][ket[2]] = 1;
			answer[ket[2]][ket[te]] = 1;
		}
	}
	if(!bisa)return 0;
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26104 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 248 ms 26104 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1024 KB Output is correct
17 Correct 116 ms 16248 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 61 ms 6904 KB Output is correct
21 Correct 244 ms 26104 KB Output is correct
22 Correct 243 ms 26104 KB Output is correct
23 Correct 257 ms 26192 KB Output is correct
24 Correct 242 ms 26232 KB Output is correct
25 Correct 133 ms 16120 KB Output is correct
26 Correct 114 ms 16108 KB Output is correct
27 Correct 265 ms 26104 KB Output is correct
28 Correct 251 ms 26104 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 11 ms 1408 KB Output is correct
9 Correct 250 ms 26232 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1440 KB Output is correct
13 Correct 268 ms 26104 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1024 KB Output is correct
17 Correct 117 ms 16112 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 63 ms 6904 KB Output is correct
22 Correct 245 ms 26104 KB Output is correct
23 Correct 242 ms 26104 KB Output is correct
24 Correct 292 ms 26108 KB Output is correct
25 Correct 103 ms 16248 KB Output is correct
26 Correct 105 ms 16120 KB Output is correct
27 Correct 242 ms 26092 KB Output is correct
28 Correct 256 ms 26104 KB Output is correct
29 Correct 101 ms 16248 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 65 ms 6884 KB Output is correct
5 Correct 244 ms 26064 KB Output is correct
6 Correct 245 ms 26096 KB Output is correct
7 Correct 282 ms 26152 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 64 ms 6904 KB Output is correct
10 Correct 270 ms 26224 KB Output is correct
11 Correct 254 ms 26136 KB Output is correct
12 Correct 271 ms 26232 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 416 KB Output is correct
16 Correct 61 ms 7032 KB Output is correct
17 Correct 245 ms 26104 KB Output is correct
18 Correct 247 ms 26104 KB Output is correct
19 Correct 239 ms 26136 KB Output is correct
20 Correct 241 ms 26144 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 248 ms 26104 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1024 KB Output is correct
17 Correct 116 ms 16248 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 61 ms 6904 KB Output is correct
21 Correct 244 ms 26104 KB Output is correct
22 Correct 243 ms 26104 KB Output is correct
23 Correct 257 ms 26192 KB Output is correct
24 Correct 242 ms 26232 KB Output is correct
25 Correct 133 ms 16120 KB Output is correct
26 Correct 114 ms 16108 KB Output is correct
27 Correct 265 ms 26104 KB Output is correct
28 Correct 251 ms 26104 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1408 KB Output is correct
37 Correct 250 ms 26232 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1440 KB Output is correct
41 Correct 268 ms 26104 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 1024 KB Output is correct
45 Correct 117 ms 16112 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 63 ms 6904 KB Output is correct
50 Correct 245 ms 26104 KB Output is correct
51 Correct 242 ms 26104 KB Output is correct
52 Correct 292 ms 26108 KB Output is correct
53 Correct 103 ms 16248 KB Output is correct
54 Correct 105 ms 16120 KB Output is correct
55 Correct 242 ms 26092 KB Output is correct
56 Correct 256 ms 26104 KB Output is correct
57 Correct 101 ms 16248 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 1024 KB Output is correct
61 Correct 120 ms 16248 KB Output is correct
62 Correct 0 ms 384 KB Output is correct
63 Correct 1 ms 360 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 61 ms 6904 KB Output is correct
66 Correct 107 ms 16108 KB Output is correct
67 Correct 119 ms 16120 KB Output is correct
68 Correct 113 ms 16120 KB Output is correct
69 Correct 128 ms 16120 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26104 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 512 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1408 KB Output is correct
13 Correct 248 ms 26104 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1024 KB Output is correct
17 Correct 116 ms 16248 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 61 ms 6904 KB Output is correct
21 Correct 244 ms 26104 KB Output is correct
22 Correct 243 ms 26104 KB Output is correct
23 Correct 257 ms 26192 KB Output is correct
24 Correct 242 ms 26232 KB Output is correct
25 Correct 133 ms 16120 KB Output is correct
26 Correct 114 ms 16108 KB Output is correct
27 Correct 265 ms 26104 KB Output is correct
28 Correct 251 ms 26104 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1408 KB Output is correct
37 Correct 250 ms 26232 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 1440 KB Output is correct
41 Correct 268 ms 26104 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 5 ms 1024 KB Output is correct
45 Correct 117 ms 16112 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 63 ms 6904 KB Output is correct
50 Correct 245 ms 26104 KB Output is correct
51 Correct 242 ms 26104 KB Output is correct
52 Correct 292 ms 26108 KB Output is correct
53 Correct 103 ms 16248 KB Output is correct
54 Correct 105 ms 16120 KB Output is correct
55 Correct 242 ms 26092 KB Output is correct
56 Correct 256 ms 26104 KB Output is correct
57 Correct 101 ms 16248 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 65 ms 6884 KB Output is correct
62 Correct 244 ms 26064 KB Output is correct
63 Correct 245 ms 26096 KB Output is correct
64 Correct 282 ms 26152 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 64 ms 6904 KB Output is correct
67 Correct 270 ms 26224 KB Output is correct
68 Correct 254 ms 26136 KB Output is correct
69 Correct 271 ms 26232 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 1 ms 416 KB Output is correct
73 Correct 61 ms 7032 KB Output is correct
74 Correct 245 ms 26104 KB Output is correct
75 Correct 247 ms 26104 KB Output is correct
76 Correct 239 ms 26136 KB Output is correct
77 Correct 241 ms 26144 KB Output is correct
78 Correct 1 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 1024 KB Output is correct
81 Correct 120 ms 16248 KB Output is correct
82 Correct 0 ms 384 KB Output is correct
83 Correct 1 ms 360 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 61 ms 6904 KB Output is correct
86 Correct 107 ms 16108 KB Output is correct
87 Correct 119 ms 16120 KB Output is correct
88 Correct 113 ms 16120 KB Output is correct
89 Correct 128 ms 16120 KB Output is correct
90 Correct 1 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 5 ms 1024 KB Output is correct
93 Correct 120 ms 16124 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 1 ms 384 KB Output is correct
96 Correct 1 ms 384 KB Output is correct
97 Correct 27 ms 4352 KB Output is correct
98 Correct 123 ms 16120 KB Output is correct
99 Correct 142 ms 16240 KB Output is correct
100 Correct 120 ms 16120 KB Output is correct
101 Correct 105 ms 16240 KB Output is correct
102 Incorrect 251 ms 26080 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -