oj.uz

Submission #798160

# Submission time Handle Problem Language Result Execution time Memory
798160 2023-07-30T12:15:52 Z nnin Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 168 ms 22100 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

int dsu[1001];
int par(int x) {
    if(dsu[x]==x) return x;
    return dsu[x] = par(dsu[x]);
}

int dsu2[1001];
int par2(int x) {
    if(dsu2[x]==x) return x;
    return dsu2[x] = par2(dsu2[x]);
}

vector<int> cyc[1001];

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

	for(int i=0;i<n;i++) dsu[i] = dsu2[i] = i;

	for(int i=0;i<n;i++) for(int j=i+1;j<n;j++) {

        if(p[i][j]==3) return 0;

        if(p[i][j]==1) {
            int pari = par(i);
            int parj = par(j);
            if(pari!=parj) {
                dsu[pari] = parj;
                answer[pari][parj] = answer[parj][pari] = 1;
            }
        }
	}

	for(int i=0;i<n;i++) for(int j=i+1;j<n;j++) {
        if(p[i][j]==2) {
            int pari = par2(par(i));
            int parj = par2(par(j));
            if(pari!=parj) {
                dsu2[pari] = parj;
            }
        }
	}
	for(int i=0;i<n;i++) {
        if(par(i)==i) cyc[par2(i)].push_back(i);
	}
	for(int i=0;i<n;i++) {
        if(cyc[i].size()<=1) continue;
        if(cyc[i].size()==2) return 0;
        int last = cyc[i][cyc[i].size()-1];
        for(int cur:cyc[i]) {
            answer[last][cur] = answer[cur][last] = 1;
            last = cur;
        }
	}

	for(int i=0;i<n;i++) for(int j=0;j<n;j++) {
        if(!p[i][j]) {
            int pari = par(i);
            int parj = par(j);
            if(pari==parj || par2(pari)==par2(parj)) {
                return 0;
            }
        }
	}

	build(answer);
	return 1;
}
/*
4
1 1 2 2
1 1 2 2
2 2 1 2
2 2 2 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 150 ms 22064 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 150 ms 22064 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 153 ms 22048 KB Output is correct
14 Correct 1 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 69 ms 12064 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5724 KB Output is correct
21 Correct 158 ms 21984 KB Output is correct
22 Correct 158 ms 22064 KB Output is correct
23 Correct 161 ms 22064 KB Output is correct
24 Correct 152 ms 22048 KB Output is correct
25 Correct 64 ms 12060 KB Output is correct
26 Correct 64 ms 12060 KB Output is correct
27 Correct 162 ms 22052 KB Output is correct
28 Correct 151 ms 22092 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 1 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 7 ms 1200 KB Output is correct
9 Correct 153 ms 22100 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 8 ms 1304 KB Output is correct
13 Correct 154 ms 22084 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 71 ms 12064 KB Output is correct
18 Correct 0 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 42 ms 5908 KB Output is correct
22 Correct 158 ms 22044 KB Output is correct
23 Correct 156 ms 22040 KB Output is correct
24 Correct 168 ms 22092 KB Output is correct
25 Correct 64 ms 12072 KB Output is correct
26 Correct 65 ms 12064 KB Output is correct
27 Correct 157 ms 22092 KB Output is correct
28 Correct 164 ms 22056 KB Output is correct
29 Correct 65 ms 12196 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 40 ms 5692 KB Output is correct
5 Correct 159 ms 22048 KB Output is correct
6 Correct 155 ms 22060 KB Output is correct
7 Correct 160 ms 22060 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 39 ms 5680 KB Output is correct
10 Correct 157 ms 21972 KB Output is correct
11 Correct 163 ms 22044 KB Output is correct
12 Correct 158 ms 22048 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 41 ms 5792 KB Output is correct
17 Correct 161 ms 22088 KB Output is correct
18 Correct 162 ms 22060 KB Output is correct
19 Correct 160 ms 22060 KB Output is correct
20 Correct 151 ms 22048 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 150 ms 22064 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 153 ms 22048 KB Output is correct
14 Correct 1 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 69 ms 12064 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5724 KB Output is correct
21 Correct 158 ms 21984 KB Output is correct
22 Correct 158 ms 22064 KB Output is correct
23 Correct 161 ms 22064 KB Output is correct
24 Correct 152 ms 22048 KB Output is correct
25 Correct 64 ms 12060 KB Output is correct
26 Correct 64 ms 12060 KB Output is correct
27 Correct 162 ms 22052 KB Output is correct
28 Correct 151 ms 22092 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 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 7 ms 1200 KB Output is correct
37 Correct 153 ms 22100 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1304 KB Output is correct
41 Correct 154 ms 22084 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 71 ms 12064 KB Output is correct
46 Correct 0 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 42 ms 5908 KB Output is correct
50 Correct 158 ms 22044 KB Output is correct
51 Correct 156 ms 22040 KB Output is correct
52 Correct 168 ms 22092 KB Output is correct
53 Correct 64 ms 12072 KB Output is correct
54 Correct 65 ms 12064 KB Output is correct
55 Correct 157 ms 22092 KB Output is correct
56 Correct 164 ms 22056 KB Output is correct
57 Correct 65 ms 12196 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 724 KB Output is correct
61 Correct 73 ms 12168 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 340 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 41 ms 5796 KB Output is correct
66 Correct 67 ms 12076 KB Output is correct
67 Correct 66 ms 12064 KB Output is correct
68 Correct 65 ms 12076 KB Output is correct
69 Correct 64 ms 12192 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 150 ms 22064 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 153 ms 22048 KB Output is correct
14 Correct 1 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 69 ms 12064 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 39 ms 5724 KB Output is correct
21 Correct 158 ms 21984 KB Output is correct
22 Correct 158 ms 22064 KB Output is correct
23 Correct 161 ms 22064 KB Output is correct
24 Correct 152 ms 22048 KB Output is correct
25 Correct 64 ms 12060 KB Output is correct
26 Correct 64 ms 12060 KB Output is correct
27 Correct 162 ms 22052 KB Output is correct
28 Correct 151 ms 22092 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 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 7 ms 1200 KB Output is correct
37 Correct 153 ms 22100 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1304 KB Output is correct
41 Correct 154 ms 22084 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 71 ms 12064 KB Output is correct
46 Correct 0 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 42 ms 5908 KB Output is correct
50 Correct 158 ms 22044 KB Output is correct
51 Correct 156 ms 22040 KB Output is correct
52 Correct 168 ms 22092 KB Output is correct
53 Correct 64 ms 12072 KB Output is correct
54 Correct 65 ms 12064 KB Output is correct
55 Correct 157 ms 22092 KB Output is correct
56 Correct 164 ms 22056 KB Output is correct
57 Correct 65 ms 12196 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 40 ms 5692 KB Output is correct
62 Correct 159 ms 22048 KB Output is correct
63 Correct 155 ms 22060 KB Output is correct
64 Correct 160 ms 22060 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 39 ms 5680 KB Output is correct
67 Correct 157 ms 21972 KB Output is correct
68 Correct 163 ms 22044 KB Output is correct
69 Correct 158 ms 22048 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 41 ms 5792 KB Output is correct
74 Correct 161 ms 22088 KB Output is correct
75 Correct 162 ms 22060 KB Output is correct
76 Correct 160 ms 22060 KB Output is correct
77 Correct 151 ms 22048 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 3 ms 724 KB Output is correct
81 Correct 73 ms 12168 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 340 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 41 ms 5796 KB Output is correct
86 Correct 67 ms 12076 KB Output is correct
87 Correct 66 ms 12064 KB Output is correct
88 Correct 65 ms 12076 KB Output is correct
89 Correct 64 ms 12192 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 724 KB Output is correct
93 Correct 66 ms 12072 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 17 ms 3712 KB Output is correct
98 Correct 64 ms 14020 KB Output is correct
99 Correct 64 ms 14096 KB Output is correct
100 Correct 63 ms 14108 KB Output is correct
101 Correct 68 ms 14104 KB Output is correct
102 Correct 63 ms 14096 KB Output is correct
103 Correct 64 ms 14092 KB Output is correct
104 Correct 64 ms 14096 KB Output is correct
105 Correct 67 ms 14108 KB Output is correct