oj.uz

Submission #1062260

# Submission time Handle Problem Language Result Execution time Memory
1062260 2024-08-16T23:00:56 Z wood Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 213 ms 24148 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define vi vector<int>
#define vp32 vector<p32>
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define MOD %1000000007
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <class T>
using Tree =
    tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//never guess
//never debug without reviewing code
//never try adding ones or substracting them
//only step by step debug when necessay



int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
    vector<vi> res(n,vi(n));
    int leader[n]; for(int i = 0; i<n; i++) leader[i] = i;
    bool done[n]; memset(done,0,sizeof done);
    for(int i = 0; i<n; i++){
        if(done[i])continue;
        done[i] = true;
        set<int> zeros, ones, twos;
        for(int j = 0; j<n; j++){
            if(p[i][j]==0) zeros.insert(j);
            else if(p[i][j]==1){
              ones.insert(j);
              done[j] = true;
            }
            else twos.insert(j);
        }
        for(int x : ones){
            for(int j = 0; j<n; j++)
                if((p[x][j]==0&&!zeros.count(j))||(p[x][j]==1&&!ones.count(j))||(p[x][j]==2&&!twos.count(j))) return 0;
        }
        vi comp(ones.begin(),ones.end());
        for(int j = 0; j<comp.size()-1; j++){
            int a = comp[j], b = comp[j+1];
            res[a][b] = res[b][a] = 1;
            leader[b] = i;
        }
    }
    memset(done,0,sizeof done);
    for(int ii = 0; ii<n; ii++){
        int i = leader[ii];
        if(done[i]) continue;
        done[i] = true;
        set<int> t = {i};
        for(int k = 0; k<n; k++){
            int j = leader[k];
            if(p[i][j]==2){ t.insert(j); done[j] = true;}
        }
        if(t.size()==2) return 0;
        if(t.size()<=1) continue;
        for(int x : t){
            for(int k = 0; k<n; k++){
                int j = leader[k];
                if((p[x][j]==2&&!t.count(j))||(p[x][j]==0&&t.count(j))) return 0;
            }
        }
        vi comp(t.begin(),t.end());
        for(int j = 0; j<comp.size()-1; j++){
            int a = comp[j], b = comp[j+1];
            res[a][b] = res[b][a] = 1;
        }
        int a = comp[0], b = comp[comp.size()-1];
        res[a][b] = res[b][a] = 1;
    }
    build(res);
	return 1;
}

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:50:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for(int j = 0; j<comp.size()-1; j++){
      |                        ~^~~~~~~~~~~~~~
supertrees.cpp:75:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |         for(int j = 0; j<comp.size()-1; j++){
      |                        ~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 121 ms 22136 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 121 ms 22136 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 169 ms 22036 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12088 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 33 ms 5724 KB Output is correct
21 Correct 124 ms 22096 KB Output is correct
22 Correct 143 ms 22100 KB Output is correct
23 Correct 127 ms 22100 KB Output is correct
24 Correct 173 ms 22040 KB Output is correct
25 Correct 59 ms 12112 KB Output is correct
26 Correct 50 ms 12116 KB Output is correct
27 Correct 131 ms 22044 KB Output is correct
28 Correct 169 ms 22020 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 7 ms 1188 KB Output is correct
9 Correct 182 ms 22036 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 7 ms 1104 KB Output is correct
13 Correct 183 ms 22032 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 6 ms 860 KB Output is correct
17 Correct 151 ms 12300 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 50 ms 5760 KB Output is correct
22 Correct 195 ms 23940 KB Output is correct
23 Correct 192 ms 24148 KB Output is correct
24 Correct 202 ms 24144 KB Output is correct
25 Correct 109 ms 14216 KB Output is correct
26 Correct 125 ms 14216 KB Output is correct
27 Correct 176 ms 24144 KB Output is correct
28 Correct 213 ms 23928 KB Output is correct
29 Correct 114 ms 14160 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 34 ms 5872 KB Output is correct
5 Correct 133 ms 22096 KB Output is correct
6 Correct 141 ms 22012 KB Output is correct
7 Correct 134 ms 22100 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 44 ms 5736 KB Output is correct
10 Correct 209 ms 24100 KB Output is correct
11 Correct 193 ms 23912 KB Output is correct
12 Correct 194 ms 23940 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 432 KB Output is correct
16 Correct 46 ms 6308 KB Output is correct
17 Correct 203 ms 24144 KB Output is correct
18 Correct 163 ms 24148 KB Output is correct
19 Correct 206 ms 24144 KB Output is correct
20 Correct 170 ms 24148 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 121 ms 22136 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 169 ms 22036 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12088 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 33 ms 5724 KB Output is correct
21 Correct 124 ms 22096 KB Output is correct
22 Correct 143 ms 22100 KB Output is correct
23 Correct 127 ms 22100 KB Output is correct
24 Correct 173 ms 22040 KB Output is correct
25 Correct 59 ms 12112 KB Output is correct
26 Correct 50 ms 12116 KB Output is correct
27 Correct 131 ms 22044 KB Output is correct
28 Correct 169 ms 22020 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1188 KB Output is correct
37 Correct 182 ms 22036 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 7 ms 1104 KB Output is correct
41 Correct 183 ms 22032 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 6 ms 860 KB Output is correct
45 Correct 151 ms 12300 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 50 ms 5760 KB Output is correct
50 Correct 195 ms 23940 KB Output is correct
51 Correct 192 ms 24148 KB Output is correct
52 Correct 202 ms 24144 KB Output is correct
53 Correct 109 ms 14216 KB Output is correct
54 Correct 125 ms 14216 KB Output is correct
55 Correct 176 ms 24144 KB Output is correct
56 Correct 213 ms 23928 KB Output is correct
57 Correct 114 ms 14160 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 3 ms 856 KB Output is correct
61 Correct 54 ms 14216 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 43 ms 6228 KB Output is correct
66 Correct 66 ms 14160 KB Output is correct
67 Correct 52 ms 14160 KB Output is correct
68 Correct 61 ms 14220 KB Output is correct
69 Correct 114 ms 14068 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1116 KB Output is correct
7 Correct 121 ms 22136 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 169 ms 22036 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 54 ms 12088 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 33 ms 5724 KB Output is correct
21 Correct 124 ms 22096 KB Output is correct
22 Correct 143 ms 22100 KB Output is correct
23 Correct 127 ms 22100 KB Output is correct
24 Correct 173 ms 22040 KB Output is correct
25 Correct 59 ms 12112 KB Output is correct
26 Correct 50 ms 12116 KB Output is correct
27 Correct 131 ms 22044 KB Output is correct
28 Correct 169 ms 22020 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 7 ms 1188 KB Output is correct
37 Correct 182 ms 22036 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 7 ms 1104 KB Output is correct
41 Correct 183 ms 22032 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 6 ms 860 KB Output is correct
45 Correct 151 ms 12300 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 50 ms 5760 KB Output is correct
50 Correct 195 ms 23940 KB Output is correct
51 Correct 192 ms 24148 KB Output is correct
52 Correct 202 ms 24144 KB Output is correct
53 Correct 109 ms 14216 KB Output is correct
54 Correct 125 ms 14216 KB Output is correct
55 Correct 176 ms 24144 KB Output is correct
56 Correct 213 ms 23928 KB Output is correct
57 Correct 114 ms 14160 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 34 ms 5872 KB Output is correct
62 Correct 133 ms 22096 KB Output is correct
63 Correct 141 ms 22012 KB Output is correct
64 Correct 134 ms 22100 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 44 ms 5736 KB Output is correct
67 Correct 209 ms 24100 KB Output is correct
68 Correct 193 ms 23912 KB Output is correct
69 Correct 194 ms 23940 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 432 KB Output is correct
73 Correct 46 ms 6308 KB Output is correct
74 Correct 203 ms 24144 KB Output is correct
75 Correct 163 ms 24148 KB Output is correct
76 Correct 206 ms 24144 KB Output is correct
77 Correct 170 ms 24148 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 3 ms 856 KB Output is correct
81 Correct 54 ms 14216 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 43 ms 6228 KB Output is correct
86 Correct 66 ms 14160 KB Output is correct
87 Correct 52 ms 14160 KB Output is correct
88 Correct 61 ms 14220 KB Output is correct
89 Correct 114 ms 14068 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 3 ms 860 KB Output is correct
93 Correct 51 ms 14088 KB Output is correct
94 Correct 0 ms 344 KB Output is correct
95 Incorrect 0 ms 388 KB Answer gives possible 1 while actual possible 0
96 Halted 0 ms 0 KB -