oj.uz

Submission #318594

# Submission time Handle Problem Language Result Execution time Memory
318594 2020-11-02T12:03:59 Z NintsiChkhaidze Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 265 ms 22376 KB 
#include "supertrees.h"
#include <iostream>
#include <vector>
#define pb push_back
using namespace std;
vector<vector<int>> answer;
vector <int> row,cycle,vec[1005];
int par[4][1005];
bool f[1005];
int construct(vector<vector<int>> p) {
    int n = p.size(),a=0,b=0;
    for(int i=0;i<n;i++){
        row.clear();
        for (int j=0;j<n;j++){
            if (p[i][j] == 3) return 0;
            if (p[i][i] != 1) return 0;
            row.pb(0);
        }
        answer.pb(row);
    }
    for(int i=0;i<n;i++)
        par[1][i]=i,par[2][i]=i;
    
    for (int i=0;i<n;i++){
        if (f[i]) continue;
        for (int j=0;j<n;j++){
            if (p[i][j] == 1 && i!=j){
                f[j]=1;
                par[1][j] = i;
                vec[i].pb(j);
                answer[i][j]=answer[j][i]=1;
            }
        }
    }
    
    for (int i=0;i<n;i++)
        for (int j=i+1;j<n;j++)
            if (par[1][i] == par[1][j] && p[i][j]!=1) return 0;
    
    for(int i=0;i<n;i++) f[i]=0;
    for(int i=0;i<n;i++){
        if (f[i]) continue;
        cycle.clear();
        cycle.pb(i);
        int cur = i;
        for (int j=0;j<n;j++){
            if (i==j) continue;
            if (p[i][j] == 2 && !f[j]) {
                cycle.pb(j);
                for (int z=0;z<vec[j].size();z++)
                    f[vec[j][z]] = 1,par[2][vec[j][z]] = i;
                f[j]=1,par[2][j] = i;
                answer[j][cur] = answer[cur][j] = 1;
                cur = j;
            }            
        }
        if (cycle.size() == 1) continue;
        if (cycle.size() == 2) return 0;
        for (int z=0;z<vec[i].size();z++)
            f[vec[i][z]] = 1,par[2][vec[i][z]] = i;
        
        answer[i][cur] = answer[cur][i] = 1;
    }
    for (int i=0;i<n;i++)
        for (int j=i+1;j<n;j++){
             if (par[1][i]!=par[1][j] && par[2][i] == par[2][j] && p[i][j]!=2) return 0;
             if (par[1][i]!=par[1][j] && par[2][i]!=par[2][j] && p[i][j]!=0) return 0;
        }
           
    
    build(answer);
    return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:50:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |                 for (int z=0;z<vec[j].size();z++)
      |                              ~^~~~~~~~~~~~~~
supertrees.cpp:59:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for (int z=0;z<vec[i].size();z++)
      |                      ~^~~~~~~~~~~~~~
supertrees.cpp:11:22: warning: unused variable 'a' [-Wunused-variable]
   11 |     int n = p.size(),a=0,b=0;
      |                      ^
supertrees.cpp:11:26: warning: unused variable 'b' [-Wunused-variable]
   11 |     int n = p.size(),a=0,b=0;
      |                          ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 372 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22116 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 372 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22116 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 265 ms 22376 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 116 ms 12388 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 64 ms 5860 KB Output is correct
21 Correct 257 ms 22116 KB Output is correct
22 Correct 257 ms 22244 KB Output is correct
23 Correct 263 ms 22136 KB Output is correct
24 Correct 263 ms 22244 KB Output is correct
25 Correct 121 ms 12388 KB Output is correct
26 Correct 113 ms 12260 KB Output is correct
27 Correct 262 ms 22116 KB Output is correct
28 Correct 257 ms 22116 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 11 ms 1260 KB Output is correct
9 Correct 256 ms 22116 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 256 ms 22116 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 123 ms 12260 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 ms 364 KB Output is correct
21 Correct 64 ms 5860 KB Output is correct
22 Correct 263 ms 22116 KB Output is correct
23 Correct 256 ms 22116 KB Output is correct
24 Correct 260 ms 22264 KB Output is correct
25 Correct 118 ms 12260 KB Output is correct
26 Correct 116 ms 12260 KB Output is correct
27 Correct 254 ms 22244 KB Output is correct
28 Correct 265 ms 22116 KB Output is correct
29 Correct 117 ms 12260 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 396 KB Output is correct
4 Correct 64 ms 5988 KB Output is correct
5 Correct 261 ms 22116 KB Output is correct
6 Correct 262 ms 22244 KB Output is correct
7 Correct 262 ms 22116 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 64 ms 5856 KB Output is correct
10 Correct 260 ms 22244 KB Output is correct
11 Correct 260 ms 22116 KB Output is correct
12 Correct 262 ms 22244 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 64 ms 5860 KB Output is correct
17 Correct 254 ms 22116 KB Output is correct
18 Correct 258 ms 22244 KB Output is correct
19 Correct 252 ms 22116 KB Output is correct
20 Correct 259 ms 22244 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 372 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22116 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 265 ms 22376 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 116 ms 12388 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 64 ms 5860 KB Output is correct
21 Correct 257 ms 22116 KB Output is correct
22 Correct 257 ms 22244 KB Output is correct
23 Correct 263 ms 22136 KB Output is correct
24 Correct 263 ms 22244 KB Output is correct
25 Correct 121 ms 12388 KB Output is correct
26 Correct 113 ms 12260 KB Output is correct
27 Correct 262 ms 22116 KB Output is correct
28 Correct 257 ms 22116 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 0 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 0 ms 364 KB Output is correct
33 Correct 0 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 0 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 256 ms 22116 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 0 ms 364 KB Output is correct
40 Correct 11 ms 1260 KB Output is correct
41 Correct 256 ms 22116 KB Output is correct
42 Correct 0 ms 364 KB Output is correct
43 Correct 0 ms 364 KB Output is correct
44 Correct 5 ms 876 KB Output is correct
45 Correct 123 ms 12260 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 0 ms 364 KB Output is correct
48 Correct 0 ms 364 KB Output is correct
49 Correct 64 ms 5860 KB Output is correct
50 Correct 263 ms 22116 KB Output is correct
51 Correct 256 ms 22116 KB Output is correct
52 Correct 260 ms 22264 KB Output is correct
53 Correct 118 ms 12260 KB Output is correct
54 Correct 116 ms 12260 KB Output is correct
55 Correct 254 ms 22244 KB Output is correct
56 Correct 265 ms 22116 KB Output is correct
57 Correct 117 ms 12260 KB Output is correct
58 Correct 0 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 7 ms 876 KB Output is correct
61 Correct 118 ms 14180 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 63 ms 6372 KB Output is correct
66 Correct 118 ms 14180 KB Output is correct
67 Correct 117 ms 14180 KB Output is correct
68 Correct 117 ms 14180 KB Output is correct
69 Correct 126 ms 14308 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 372 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 260 ms 22116 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 265 ms 22376 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 116 ms 12388 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 64 ms 5860 KB Output is correct
21 Correct 257 ms 22116 KB Output is correct
22 Correct 257 ms 22244 KB Output is correct
23 Correct 263 ms 22136 KB Output is correct
24 Correct 263 ms 22244 KB Output is correct
25 Correct 121 ms 12388 KB Output is correct
26 Correct 113 ms 12260 KB Output is correct
27 Correct 262 ms 22116 KB Output is correct
28 Correct 257 ms 22116 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 0 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 0 ms 364 KB Output is correct
33 Correct 0 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 0 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 256 ms 22116 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 0 ms 364 KB Output is correct
40 Correct 11 ms 1260 KB Output is correct
41 Correct 256 ms 22116 KB Output is correct
42 Correct 0 ms 364 KB Output is correct
43 Correct 0 ms 364 KB Output is correct
44 Correct 5 ms 876 KB Output is correct
45 Correct 123 ms 12260 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 0 ms 364 KB Output is correct
48 Correct 0 ms 364 KB Output is correct
49 Correct 64 ms 5860 KB Output is correct
50 Correct 263 ms 22116 KB Output is correct
51 Correct 256 ms 22116 KB Output is correct
52 Correct 260 ms 22264 KB Output is correct
53 Correct 118 ms 12260 KB Output is correct
54 Correct 116 ms 12260 KB Output is correct
55 Correct 254 ms 22244 KB Output is correct
56 Correct 265 ms 22116 KB Output is correct
57 Correct 117 ms 12260 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 0 ms 364 KB Output is correct
60 Correct 1 ms 396 KB Output is correct
61 Correct 64 ms 5988 KB Output is correct
62 Correct 261 ms 22116 KB Output is correct
63 Correct 262 ms 22244 KB Output is correct
64 Correct 262 ms 22116 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 64 ms 5856 KB Output is correct
67 Correct 260 ms 22244 KB Output is correct
68 Correct 260 ms 22116 KB Output is correct
69 Correct 262 ms 22244 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 0 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 64 ms 5860 KB Output is correct
74 Correct 254 ms 22116 KB Output is correct
75 Correct 258 ms 22244 KB Output is correct
76 Correct 252 ms 22116 KB Output is correct
77 Correct 259 ms 22244 KB Output is correct
78 Correct 0 ms 364 KB Output is correct
79 Correct 1 ms 364 KB Output is correct
80 Correct 7 ms 876 KB Output is correct
81 Correct 118 ms 14180 KB Output is correct
82 Correct 1 ms 364 KB Output is correct
83 Correct 1 ms 364 KB Output is correct
84 Correct 1 ms 364 KB Output is correct
85 Correct 63 ms 6372 KB Output is correct
86 Correct 118 ms 14180 KB Output is correct
87 Correct 117 ms 14180 KB Output is correct
88 Correct 117 ms 14180 KB Output is correct
89 Correct 126 ms 14308 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 5 ms 748 KB Output is correct
93 Correct 114 ms 10212 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 364 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 27 ms 2916 KB Output is correct
98 Correct 109 ms 10468 KB Output is correct
99 Correct 112 ms 10724 KB Output is correct
100 Correct 113 ms 10600 KB Output is correct
101 Correct 114 ms 11492 KB Output is correct
102 Correct 110 ms 10212 KB Output is correct
103 Correct 108 ms 10212 KB Output is correct
104 Correct 111 ms 10216 KB Output is correct
105 Correct 118 ms 10212 KB Output is correct