oj.uz

Submission #457578

# Submission time Handle Problem Language Result Execution time Memory
457578 2021-08-07T08:26:23 Z vector Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 277 ms 24132 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
#define SIZE 1001
using namespace std;
int root[SIZE], a[SIZE];
vector<vector<int> > con;
vector<vector<vector<int> > > lin;
int Find(int x)
{
    if (x==root[x]) return x;
    return root[x]=Find(root[x]);
}
void Union(int x, int y)
{
    if (Find(x)==Find(y)) return;
    root[root[x]]=root[y];
}
int construct(vector<vector<int> > p)
{
	int N=p.size(), M;
	vector<vector<int> > ret(N);
	for (int i=0; i<N; i++) {
        ret[i].resize(N);
        root[i]=i, a[i]=-1;
	}
	for (int i=0; i<N; i++) for (int j=0; j<N; j++) if (i!=j) {
        if (p[i][j]==3) return 0;
        if (p[i][j]!=0) Union(i, j);
	}
	for (int i=0; i<N; i++) {
        if (a[Find(i)]==-1) {
            a[root[i]]=con.size();
            vector<int> v;
            v.push_back(i);
            con.push_back(v);
        }
        else con[a[root[i]]].push_back(i);
	}
	M=con.size();
	lin.resize(M);
	for (int i=0; i<M; i++) for (int j : con[i]) for (int k : con[i]) if (p[j][k]==0) return 0;
	for (int i=0; i<N; i++) root[i]=i, a[i]=-1;
	for (int i=0; i<M; i++) {
        for (int j : con[i]) for (int k : con[i]) if (j!=k && p[j][k]==1) Union(j, k);
        for (int j : con[i]) {
            if (a[Find(j)]==-1) {
                a[root[j]]=lin[i].size();
                vector<int> v;
                v.push_back(j);
                lin[i].push_back(v);
            }
            else lin[i][a[root[j]]].push_back(j);
        }
        if (lin[i].size()==2) return 0;
        for (int j=0; j<lin[i].size(); j++) for (int k : lin[i][j]) for (int l : lin[i][j]) if (p[k][l]==2) return 0;
        for (int j=0; j<lin[i].size(); j++) for (int k=0; k<lin[i][j].size(); k++) {
            if (k!=0) ret[lin[i][j][k]][lin[i][j][k-1]]=1;
            if (k!=lin[i][j].size()-1) ret[lin[i][j][k]][lin[i][j][k+1]]=1;
        }
        for (int j=0; j<lin[i].size()-1; j++) ret[lin[i][j][0]][lin[i][j+1][0]]=ret[lin[i][j+1][0]][lin[i][j][0]]=1;
        if (lin[i].size()>1) {
            ret[lin[i][lin[i].size()-1][0]][lin[i][0][0]]=1;
            ret[lin[i][0][0]][lin[i][lin[i].size()-1][0]]=1;
        }
	}
	build(ret);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:55:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for (int j=0; j<lin[i].size(); j++) for (int k : lin[i][j]) for (int l : lin[i][j]) if (p[k][l]==2) return 0;
      |                       ~^~~~~~~~~~~~~~
supertrees.cpp:56:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int j=0; j<lin[i].size(); j++) for (int k=0; k<lin[i][j].size(); k++) {
      |                       ~^~~~~~~~~~~~~~
supertrees.cpp:56:60: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int j=0; j<lin[i].size(); j++) for (int k=0; k<lin[i][j].size(); k++) {
      |                                                           ~^~~~~~~~~~~~~~~~~
supertrees.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |             if (k!=lin[i][j].size()-1) ret[lin[i][j][k]][lin[i][j][k+1]]=1;
      |                 ~^~~~~~~~~~~~~~~~~~~~
supertrees.cpp:60:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |         for (int j=0; j<lin[i].size()-1; j++) ret[lin[i][j][0]][lin[i][j+1][0]]=ret[lin[i][j+1][0]][lin[i][j][0]]=1;
      |                       ~^~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 239 ms 23968 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 239 ms 23968 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 292 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1200 KB Output is correct
13 Correct 227 ms 24032 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 292 KB Output is correct
16 Correct 5 ms 792 KB Output is correct
17 Correct 122 ms 14064 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 59 ms 6256 KB Output is correct
21 Correct 230 ms 23936 KB Output is correct
22 Correct 255 ms 24132 KB Output is correct
23 Correct 265 ms 23972 KB Output is correct
24 Correct 229 ms 24120 KB Output is correct
25 Correct 99 ms 14080 KB Output is correct
26 Correct 96 ms 14072 KB Output is correct
27 Correct 250 ms 24008 KB Output is correct
28 Correct 238 ms 24056 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 10 ms 1300 KB Output is correct
9 Correct 241 ms 24048 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1228 KB Output is correct
13 Correct 235 ms 23964 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 5 ms 820 KB Output is correct
17 Correct 110 ms 14060 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 59 ms 6216 KB Output is correct
22 Correct 235 ms 24004 KB Output is correct
23 Correct 239 ms 24044 KB Output is correct
24 Correct 249 ms 24004 KB Output is correct
25 Correct 113 ms 14276 KB Output is correct
26 Correct 98 ms 14060 KB Output is correct
27 Correct 233 ms 23988 KB Output is correct
28 Correct 247 ms 24064 KB Output is correct
29 Correct 92 ms 14204 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 58 ms 6220 KB Output is correct
5 Correct 242 ms 23916 KB Output is correct
6 Correct 225 ms 24040 KB Output is correct
7 Correct 256 ms 23996 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 67 ms 6256 KB Output is correct
10 Correct 273 ms 24060 KB Output is correct
11 Correct 241 ms 24096 KB Output is correct
12 Correct 256 ms 24096 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 292 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 58 ms 6212 KB Output is correct
17 Correct 234 ms 24060 KB Output is correct
18 Correct 242 ms 24004 KB Output is correct
19 Correct 277 ms 23988 KB Output is correct
20 Correct 250 ms 24056 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 239 ms 23968 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 292 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1200 KB Output is correct
13 Correct 227 ms 24032 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 292 KB Output is correct
16 Correct 5 ms 792 KB Output is correct
17 Correct 122 ms 14064 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 59 ms 6256 KB Output is correct
21 Correct 230 ms 23936 KB Output is correct
22 Correct 255 ms 24132 KB Output is correct
23 Correct 265 ms 23972 KB Output is correct
24 Correct 229 ms 24120 KB Output is correct
25 Correct 99 ms 14080 KB Output is correct
26 Correct 96 ms 14072 KB Output is correct
27 Correct 250 ms 24008 KB Output is correct
28 Correct 238 ms 24056 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 296 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1300 KB Output is correct
37 Correct 241 ms 24048 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1228 KB Output is correct
41 Correct 235 ms 23964 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 5 ms 820 KB Output is correct
45 Correct 110 ms 14060 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 59 ms 6216 KB Output is correct
50 Correct 235 ms 24004 KB Output is correct
51 Correct 239 ms 24044 KB Output is correct
52 Correct 249 ms 24004 KB Output is correct
53 Correct 113 ms 14276 KB Output is correct
54 Correct 98 ms 14060 KB Output is correct
55 Correct 233 ms 23988 KB Output is correct
56 Correct 247 ms 24064 KB Output is correct
57 Correct 92 ms 14204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 292 KB Output is correct
60 Correct 6 ms 824 KB Output is correct
61 Correct 109 ms 14080 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 296 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 64 ms 6192 KB Output is correct
66 Correct 105 ms 14060 KB Output is correct
67 Correct 113 ms 14072 KB Output is correct
68 Correct 94 ms 14060 KB Output is correct
69 Correct 133 ms 14068 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 284 KB Output is correct
3 Correct 0 ms 296 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 1228 KB Output is correct
7 Correct 239 ms 23968 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 292 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 10 ms 1200 KB Output is correct
13 Correct 227 ms 24032 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 292 KB Output is correct
16 Correct 5 ms 792 KB Output is correct
17 Correct 122 ms 14064 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 59 ms 6256 KB Output is correct
21 Correct 230 ms 23936 KB Output is correct
22 Correct 255 ms 24132 KB Output is correct
23 Correct 265 ms 23972 KB Output is correct
24 Correct 229 ms 24120 KB Output is correct
25 Correct 99 ms 14080 KB Output is correct
26 Correct 96 ms 14072 KB Output is correct
27 Correct 250 ms 24008 KB Output is correct
28 Correct 238 ms 24056 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 296 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 10 ms 1300 KB Output is correct
37 Correct 241 ms 24048 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 10 ms 1228 KB Output is correct
41 Correct 235 ms 23964 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 0 ms 204 KB Output is correct
44 Correct 5 ms 820 KB Output is correct
45 Correct 110 ms 14060 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 59 ms 6216 KB Output is correct
50 Correct 235 ms 24004 KB Output is correct
51 Correct 239 ms 24044 KB Output is correct
52 Correct 249 ms 24004 KB Output is correct
53 Correct 113 ms 14276 KB Output is correct
54 Correct 98 ms 14060 KB Output is correct
55 Correct 233 ms 23988 KB Output is correct
56 Correct 247 ms 24064 KB Output is correct
57 Correct 92 ms 14204 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 58 ms 6220 KB Output is correct
62 Correct 242 ms 23916 KB Output is correct
63 Correct 225 ms 24040 KB Output is correct
64 Correct 256 ms 23996 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 67 ms 6256 KB Output is correct
67 Correct 273 ms 24060 KB Output is correct
68 Correct 241 ms 24096 KB Output is correct
69 Correct 256 ms 24096 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 1 ms 292 KB Output is correct
72 Correct 1 ms 204 KB Output is correct
73 Correct 58 ms 6212 KB Output is correct
74 Correct 234 ms 24060 KB Output is correct
75 Correct 242 ms 24004 KB Output is correct
76 Correct 277 ms 23988 KB Output is correct
77 Correct 250 ms 24056 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 1 ms 292 KB Output is correct
80 Correct 6 ms 824 KB Output is correct
81 Correct 109 ms 14080 KB Output is correct
82 Correct 1 ms 204 KB Output is correct
83 Correct 1 ms 296 KB Output is correct
84 Correct 1 ms 204 KB Output is correct
85 Correct 64 ms 6192 KB Output is correct
86 Correct 105 ms 14060 KB Output is correct
87 Correct 113 ms 14072 KB Output is correct
88 Correct 94 ms 14060 KB Output is correct
89 Correct 133 ms 14068 KB Output is correct
90 Correct 1 ms 204 KB Output is correct
91 Correct 1 ms 204 KB Output is correct
92 Correct 5 ms 844 KB Output is correct
93 Correct 105 ms 14060 KB Output is correct
94 Correct 0 ms 204 KB Output is correct
95 Correct 0 ms 204 KB Output is correct
96 Correct 1 ms 204 KB Output is correct
97 Correct 35 ms 3700 KB Output is correct
98 Correct 94 ms 14080 KB Output is correct
99 Correct 104 ms 14060 KB Output is correct
100 Correct 97 ms 14064 KB Output is correct
101 Correct 93 ms 14076 KB Output is correct
102 Correct 96 ms 14020 KB Output is correct
103 Correct 99 ms 14020 KB Output is correct
104 Correct 96 ms 14072 KB Output is correct
105 Correct 102 ms 14064 KB Output is correct