oj.uz

Submission #825971

# Submission time Handle Problem Language Result Execution time Memory
825971 2023-08-15T09:39:05 Z amunduzbaev Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 188 ms 24048 KB 
#include "supertrees.h"

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

int construct(vector<vector<int>> p) {
	int n = p.size();
	
	vector<int> v;
	vector<int> used(n);
	function<void(int)> dfs = [&](int u){
		v.push_back(u);
		used[u] = 1;
		for(int x=0;x<n;x++){
			if(p[u][x] && !used[x]){
				dfs(x);
			}
		}
	};
	
	vector<vector<int>> ans(n, vector<int>(n, 0));
	
	for(int i=0;i<n;i++){
		if(used[i]) continue;
		dfs(i);
		
		for(auto x : v){
			for(auto y : v){
				if(!p[x][y]){
					return 0;
				}
				if(p[x][y] == 3){
					return 0;
				}
			}
		}
		
		vector<int> c(n), one;
		int last = 0;
		function<void(int)> dfs = [&](int u){
			one.push_back(u);
			c[u] = last;
			for(int x=0;x<n;x++){
				if(!c[x] && p[u][x] == 1){
					ans[u][x] = ans[x][u] = 1;
					dfs(x);
				}
			}
		};
		
		vector<int> cyc;
		for(auto u : v){
			if(c[u]) continue;
			last++;
			dfs(u);
			for(auto x : one){
				for(auto y : one){
					if(p[x][y] != 1) return 0;
				}
			}
			
			cyc.push_back(u);
			one.clear();
		}
		
		if((int)cyc.size() == 2) return 0;
		
		last = cyc.back();
		for(auto x : cyc){
			if(x != last) ans[x][last] = ans[last][x] = 1;
			last = x;
		}
		
		v.clear();
	}
	
	build(ans);
	
	return 1;
}

Subtask #1
11.0 / 11.0

# 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1144 KB Output is correct
7 Correct 158 ms 22020 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1144 KB Output is correct
7 Correct 158 ms 22020 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 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 150 ms 21984 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 72 ms 12160 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 5768 KB Output is correct
21 Correct 150 ms 22020 KB Output is correct
22 Correct 150 ms 22020 KB Output is correct
23 Correct 158 ms 22068 KB Output is correct
24 Correct 154 ms 21980 KB Output is correct
25 Correct 61 ms 12036 KB Output is correct
26 Correct 59 ms 12036 KB Output is correct
27 Correct 154 ms 21996 KB Output is correct
28 Correct 151 ms 21964 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 0 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 6 ms 1244 KB Output is correct
9 Correct 149 ms 23944 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 1236 KB Output is correct
13 Correct 164 ms 24048 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 852 KB Output is correct
17 Correct 72 ms 14068 KB Output is correct
18 Correct 0 ms 296 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 38 ms 6232 KB Output is correct
22 Correct 160 ms 23908 KB Output is correct
23 Correct 152 ms 23932 KB Output is correct
24 Correct 156 ms 23924 KB Output is correct
25 Correct 61 ms 13992 KB Output is correct
26 Correct 61 ms 14064 KB Output is correct
27 Correct 155 ms 24040 KB Output is correct
28 Correct 160 ms 23924 KB Output is correct
29 Correct 61 ms 14080 KB Output is correct

Subtask #4
35.0 / 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 37 ms 5660 KB Output is correct
5 Correct 150 ms 22080 KB Output is correct
6 Correct 147 ms 22012 KB Output is correct
7 Correct 152 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 38 ms 5680 KB Output is correct
10 Correct 151 ms 22024 KB Output is correct
11 Correct 158 ms 22020 KB Output is correct
12 Correct 164 ms 22024 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 36 ms 5764 KB Output is correct
17 Correct 188 ms 21972 KB Output is correct
18 Correct 158 ms 21964 KB Output is correct
19 Correct 177 ms 21992 KB Output is correct
20 Correct 180 ms 21956 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1144 KB Output is correct
7 Correct 158 ms 22020 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 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 150 ms 21984 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 72 ms 12160 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 5768 KB Output is correct
21 Correct 150 ms 22020 KB Output is correct
22 Correct 150 ms 22020 KB Output is correct
23 Correct 158 ms 22068 KB Output is correct
24 Correct 154 ms 21980 KB Output is correct
25 Correct 61 ms 12036 KB Output is correct
26 Correct 59 ms 12036 KB Output is correct
27 Correct 154 ms 21996 KB Output is correct
28 Correct 151 ms 21964 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 0 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 6 ms 1244 KB Output is correct
37 Correct 149 ms 23944 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 1236 KB Output is correct
41 Correct 164 ms 24048 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 852 KB Output is correct
45 Correct 72 ms 14068 KB Output is correct
46 Correct 0 ms 296 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 6232 KB Output is correct
50 Correct 160 ms 23908 KB Output is correct
51 Correct 152 ms 23932 KB Output is correct
52 Correct 156 ms 23924 KB Output is correct
53 Correct 61 ms 13992 KB Output is correct
54 Correct 61 ms 14064 KB Output is correct
55 Correct 155 ms 24040 KB Output is correct
56 Correct 160 ms 23924 KB Output is correct
57 Correct 61 ms 14080 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 73 ms 14076 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 300 KB Output is correct
64 Correct 0 ms 300 KB Output is correct
65 Correct 59 ms 6264 KB Output is correct
66 Correct 70 ms 14068 KB Output is correct
67 Correct 76 ms 14068 KB Output is correct
68 Correct 62 ms 14064 KB Output is correct
69 Correct 69 ms 14064 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 8 ms 1144 KB Output is correct
7 Correct 158 ms 22020 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 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 150 ms 21984 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 72 ms 12160 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 5768 KB Output is correct
21 Correct 150 ms 22020 KB Output is correct
22 Correct 150 ms 22020 KB Output is correct
23 Correct 158 ms 22068 KB Output is correct
24 Correct 154 ms 21980 KB Output is correct
25 Correct 61 ms 12036 KB Output is correct
26 Correct 59 ms 12036 KB Output is correct
27 Correct 154 ms 21996 KB Output is correct
28 Correct 151 ms 21964 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 0 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 6 ms 1244 KB Output is correct
37 Correct 149 ms 23944 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 1236 KB Output is correct
41 Correct 164 ms 24048 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 852 KB Output is correct
45 Correct 72 ms 14068 KB Output is correct
46 Correct 0 ms 296 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 38 ms 6232 KB Output is correct
50 Correct 160 ms 23908 KB Output is correct
51 Correct 152 ms 23932 KB Output is correct
52 Correct 156 ms 23924 KB Output is correct
53 Correct 61 ms 13992 KB Output is correct
54 Correct 61 ms 14064 KB Output is correct
55 Correct 155 ms 24040 KB Output is correct
56 Correct 160 ms 23924 KB Output is correct
57 Correct 61 ms 14080 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 37 ms 5660 KB Output is correct
62 Correct 150 ms 22080 KB Output is correct
63 Correct 147 ms 22012 KB Output is correct
64 Correct 152 ms 22016 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 38 ms 5680 KB Output is correct
67 Correct 151 ms 22024 KB Output is correct
68 Correct 158 ms 22020 KB Output is correct
69 Correct 164 ms 22024 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 36 ms 5764 KB Output is correct
74 Correct 188 ms 21972 KB Output is correct
75 Correct 158 ms 21964 KB Output is correct
76 Correct 177 ms 21992 KB Output is correct
77 Correct 180 ms 21956 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 73 ms 14076 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 1 ms 300 KB Output is correct
84 Correct 0 ms 300 KB Output is correct
85 Correct 59 ms 6264 KB Output is correct
86 Correct 70 ms 14068 KB Output is correct
87 Correct 76 ms 14068 KB Output is correct
88 Correct 62 ms 14064 KB Output is correct
89 Correct 69 ms 14064 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 67 ms 14068 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 27 ms 3704 KB Output is correct
98 Correct 72 ms 14072 KB Output is correct
99 Correct 98 ms 14100 KB Output is correct
100 Correct 61 ms 14068 KB Output is correct
101 Correct 61 ms 14072 KB Output is correct
102 Correct 60 ms 14084 KB Output is correct
103 Correct 62 ms 14072 KB Output is correct
104 Correct 62 ms 14084 KB Output is correct
105 Correct 73 ms 14084 KB Output is correct