oj.uz

Submission #300420

# Submission time Handle Problem Language Result Execution time Memory
300420 2020-09-17T07:03:13 Z faustaadp Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 263 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[3] == 1 && x[1] == 0)
		{
			if(sz <= 3)
				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;
				}
				answer[v[i][1]][v[i][sz - 1]] = 1;
				answer[v[i][sz - 1]][v[i][1]] = 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(!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 && 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;
					}
				}
			}
			if(te <= 3)
				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 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26228 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 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26228 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 245 ms 26104 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 360 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 125 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 63 ms 6900 KB Output is correct
21 Correct 249 ms 26096 KB Output is correct
22 Correct 254 ms 26080 KB Output is correct
23 Correct 263 ms 26168 KB Output is correct
24 Correct 254 ms 26128 KB Output is correct
25 Correct 113 ms 16124 KB Output is correct
26 Correct 109 ms 16124 KB Output is correct
27 Correct 255 ms 26104 KB Output is correct
28 Correct 245 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 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 11 ms 1408 KB Output is correct
9 Correct 259 ms 26104 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 1536 KB Output is correct
13 Correct 257 ms 26108 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 7 ms 1024 KB Output is correct
17 Correct 135 ms 16236 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 62 ms 6904 KB Output is correct
22 Correct 245 ms 26104 KB Output is correct
23 Correct 244 ms 26108 KB Output is correct
24 Correct 256 ms 26224 KB Output is correct
25 Correct 106 ms 16120 KB Output is correct
26 Correct 115 ms 16120 KB Output is correct
27 Correct 242 ms 26104 KB Output is correct
28 Correct 253 ms 26108 KB Output is correct
29 Correct 112 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 61 ms 6904 KB Output is correct
5 Correct 244 ms 26104 KB Output is correct
6 Correct 246 ms 26096 KB Output is correct
7 Correct 260 ms 26120 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 60 ms 6904 KB Output is correct
10 Correct 243 ms 26104 KB Output is correct
11 Correct 247 ms 26104 KB Output is correct
12 Correct 260 ms 26104 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 384 KB Output is correct
16 Correct 63 ms 6904 KB Output is correct
17 Correct 244 ms 26232 KB Output is correct
18 Correct 250 ms 26104 KB Output is correct
19 Correct 247 ms 26104 KB Output is correct
20 Correct 248 ms 26104 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 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26228 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 245 ms 26104 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 360 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 125 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 63 ms 6900 KB Output is correct
21 Correct 249 ms 26096 KB Output is correct
22 Correct 254 ms 26080 KB Output is correct
23 Correct 263 ms 26168 KB Output is correct
24 Correct 254 ms 26128 KB Output is correct
25 Correct 113 ms 16124 KB Output is correct
26 Correct 109 ms 16124 KB Output is correct
27 Correct 255 ms 26104 KB Output is correct
28 Correct 245 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 512 KB Output is correct
34 Correct 1 ms 512 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1408 KB Output is correct
37 Correct 259 ms 26104 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 1536 KB Output is correct
41 Correct 257 ms 26108 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 7 ms 1024 KB Output is correct
45 Correct 135 ms 16236 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 62 ms 6904 KB Output is correct
50 Correct 245 ms 26104 KB Output is correct
51 Correct 244 ms 26108 KB Output is correct
52 Correct 256 ms 26224 KB Output is correct
53 Correct 106 ms 16120 KB Output is correct
54 Correct 115 ms 16120 KB Output is correct
55 Correct 242 ms 26104 KB Output is correct
56 Correct 253 ms 26108 KB Output is correct
57 Correct 112 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 6 ms 1024 KB Output is correct
61 Correct 125 ms 16120 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 512 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 62 ms 6904 KB Output is correct
66 Correct 110 ms 16120 KB Output is correct
67 Correct 110 ms 16120 KB Output is correct
68 Correct 111 ms 16248 KB Output is correct
69 Correct 105 ms 16248 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 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 11 ms 1408 KB Output is correct
7 Correct 254 ms 26228 KB Output is correct
8 Correct 1 ms 288 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1408 KB Output is correct
13 Correct 245 ms 26104 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 360 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 125 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 63 ms 6900 KB Output is correct
21 Correct 249 ms 26096 KB Output is correct
22 Correct 254 ms 26080 KB Output is correct
23 Correct 263 ms 26168 KB Output is correct
24 Correct 254 ms 26128 KB Output is correct
25 Correct 113 ms 16124 KB Output is correct
26 Correct 109 ms 16124 KB Output is correct
27 Correct 255 ms 26104 KB Output is correct
28 Correct 245 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 512 KB Output is correct
34 Correct 1 ms 512 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 11 ms 1408 KB Output is correct
37 Correct 259 ms 26104 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 1536 KB Output is correct
41 Correct 257 ms 26108 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 7 ms 1024 KB Output is correct
45 Correct 135 ms 16236 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 62 ms 6904 KB Output is correct
50 Correct 245 ms 26104 KB Output is correct
51 Correct 244 ms 26108 KB Output is correct
52 Correct 256 ms 26224 KB Output is correct
53 Correct 106 ms 16120 KB Output is correct
54 Correct 115 ms 16120 KB Output is correct
55 Correct 242 ms 26104 KB Output is correct
56 Correct 253 ms 26108 KB Output is correct
57 Correct 112 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 61 ms 6904 KB Output is correct
62 Correct 244 ms 26104 KB Output is correct
63 Correct 246 ms 26096 KB Output is correct
64 Correct 260 ms 26120 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 60 ms 6904 KB Output is correct
67 Correct 243 ms 26104 KB Output is correct
68 Correct 247 ms 26104 KB Output is correct
69 Correct 260 ms 26104 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 384 KB Output is correct
73 Correct 63 ms 6904 KB Output is correct
74 Correct 244 ms 26232 KB Output is correct
75 Correct 250 ms 26104 KB Output is correct
76 Correct 247 ms 26104 KB Output is correct
77 Correct 248 ms 26104 KB Output is correct
78 Correct 1 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 6 ms 1024 KB Output is correct
81 Correct 125 ms 16120 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 512 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 62 ms 6904 KB Output is correct
86 Correct 110 ms 16120 KB Output is correct
87 Correct 110 ms 16120 KB Output is correct
88 Correct 111 ms 16248 KB Output is correct
89 Correct 105 ms 16248 KB Output is correct
90 Correct 1 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 6 ms 1024 KB Output is correct
93 Correct 122 ms 16120 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 29 ms 4352 KB Output is correct
98 Correct 109 ms 16120 KB Output is correct
99 Correct 115 ms 16120 KB Output is correct
100 Correct 114 ms 16120 KB Output is correct
101 Correct 105 ms 16248 KB Output is correct
102 Incorrect 250 ms 26104 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -