oj.uz

Submission #1069948

# Submission time Handle Problem Language Result Execution time Memory
1069948 2024-08-22T10:29:55 Z hasan2006 Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 171 ms 22408 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 2e5 + 9 , mod = 1e9 + 7;
ll a[N] ,  b[N] , dp[N];

//int press(string a){}
int construct(vector<vector<int>> v){
    ll i , j , l , r , s  = 0, f , n , m , x , y , k;
    n = v.size();
    vector<vector<int>>c(n);
    for(i = 0; i < n; i++)
        c[i].resize(n);
    for(i = 0; i < n; i++){
        if(b[i] != 0)
            continue;
        vector<pair<int,pair<int,int>>>vc;
        vector<int>v1 , v2 , v3;
        for(j = 0; j < n; j++)
            if(v[i][j] != 0){
                b[j] = 1 , v1.pb(j);
            }
        l = r = 0;
        for(x = 0; x < v1.size(); x++){
            if(b[v1[x]] != 2)
                b[v1[x]] = 3;
            f = v1[x];
            for(y = x + 1; y < v1.size(); y++){
                vc.pb({v[v1[x]][v1[y]] , {v1[x] , v1[y]}});
                if(v[v1[x]][v1[y]] == 2)
                    l = 1;
                else if(v[v1[x]][v1[y]] == 3)
                    r = 1;
                else if(b[v1[x]] == 3){
                    if(b[v1[y]] == 2)
                        return 0;
                    c[v1[y]][f] = c[f][v1[y]] = 1;
                    b[v1[y]] = 2;
                    f = v1[y];
                }
            }
        }
        sort(all(vc));
        if(v1.size() == 1)
            continue;
        if((l == 1 && r == 1) || vc.front().fi == 0)
            return 0;
        set<int>st;
        for(auto to : v1){
            st.insert(to);
            if(b[to] == 3)
                v2.pb(to);
            else
                v3.pb(to);
        }
        if(v2.size() && l + r > 0){
            if(v2.size() <= vc.back().fi){
                return 0;
            }
            f = v2.back();
            for(auto to : v2)
                c[f][to] = c[to][f] = 1 , f = to;
            if(vc.back().fi == 3)
                c[v2[0]][v2[2]] = c[v2[2]][v2[0]] = 1;
        }
        for(auto to : v1){
            ll L = 0 ,R = 0 , s =0;
            for(j = 0; j < n ; j++)
                if(v[to][j] != 0){
                    if(st.find(j) == st.end())
                        return 0;
                    s++;
                    if(to == j)
                        continue;
                    if(v[to][j] == 2)
                        L = 1;
                    else if(v[to][j] == 3)
                        R = 1;
                    else {
                   //     if(b[to] == 1 || b[j] == 1)
                   //         return 0;
                    }
                }
            if((L > l) || (R > r) || s != v1.size())
                return 0;
        }
    }
 //   for(i = 0; i < n; i++){
 //       for(j = 0; j < n; j++)
 //           cout<<c[i][j]<<" ";
 //       cout<<"\n";
   // }
    build(c);
    return 1;
}

/*
int main(){
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    cout<<construct({{1, 1, 2, 2}, {1, 1, 2, 2}, {2, 2, 1, 2}, {2, 2, 2, 1}});
}*/
// Author : حسن

Compilation message

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:42:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         for(x = 0; x < v1.size(); x++){
      |                    ~~^~~~~~~~~~~
supertrees.cpp:46:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             for(y = x + 1; y < v1.size(); y++){
      |                            ~~^~~~~~~~~~~
supertrees.cpp:75:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   75 |             if(v2.size() <= vc.back().fi){
      |                          ^
supertrees.cpp:102:40: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |             if((L > l) || (R > r) || s != v1.size())
      |                                      ~~^~~~~~~~~~~~
supertrees.cpp:27:24: warning: unused variable 's' [-Wunused-variable]
   27 |     ll i , j , l , r , s  = 0, f , n , m , x , y , k;
      |                        ^
supertrees.cpp:27:40: warning: unused variable 'm' [-Wunused-variable]
   27 |     ll i , j , l , r , s  = 0, f , n , m , x , y , k;
      |                                        ^
supertrees.cpp:27:52: warning: unused variable 'k' [-Wunused-variable]
   27 |     ll i , j , l , r , s  = 0, f , n , m , x , y , k;
      |                                                    ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1336 KB Output is correct
7 Correct 147 ms 22156 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1336 KB Output is correct
7 Correct 147 ms 22156 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 116 ms 22196 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 69 ms 16680 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 30 ms 5784 KB Output is correct
21 Correct 116 ms 21976 KB Output is correct
22 Correct 121 ms 22032 KB Output is correct
23 Correct 137 ms 22164 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 53 ms 12368 KB Output is correct
26 Correct 51 ms 12116 KB Output is correct
27 Correct 141 ms 22008 KB Output is correct
28 Correct 112 ms 22096 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 344 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 1 ms 344 KB Output is correct
8 Correct 9 ms 1116 KB Output is correct
9 Correct 136 ms 22100 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1316 KB Output is correct
13 Correct 171 ms 22408 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 68 ms 12316 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 28 ms 5808 KB Output is correct
22 Correct 131 ms 21972 KB Output is correct
23 Correct 123 ms 22028 KB Output is correct
24 Correct 148 ms 22312 KB Output is correct
25 Correct 49 ms 12116 KB Output is correct
26 Correct 51 ms 12368 KB Output is correct
27 Correct 117 ms 22180 KB Output is correct
28 Correct 149 ms 22172 KB Output is correct
29 Correct 68 ms 12048 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 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 30 ms 5780 KB Output is correct
5 Correct 120 ms 21976 KB Output is correct
6 Correct 162 ms 22104 KB Output is correct
7 Correct 148 ms 22164 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 35 ms 5712 KB Output is correct
10 Correct 113 ms 22164 KB Output is correct
11 Correct 138 ms 22096 KB Output is correct
12 Correct 143 ms 22016 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 30 ms 5724 KB Output is correct
17 Correct 144 ms 22164 KB Output is correct
18 Correct 132 ms 22100 KB Output is correct
19 Correct 126 ms 22100 KB Output is correct
20 Correct 118 ms 22044 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1336 KB Output is correct
7 Correct 147 ms 22156 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 116 ms 22196 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 69 ms 16680 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 30 ms 5784 KB Output is correct
21 Correct 116 ms 21976 KB Output is correct
22 Correct 121 ms 22032 KB Output is correct
23 Correct 137 ms 22164 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 53 ms 12368 KB Output is correct
26 Correct 51 ms 12116 KB Output is correct
27 Correct 141 ms 22008 KB Output is correct
28 Correct 112 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 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 1 ms 344 KB Output is correct
36 Correct 9 ms 1116 KB Output is correct
37 Correct 136 ms 22100 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1316 KB Output is correct
41 Correct 171 ms 22408 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 68 ms 12316 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 28 ms 5808 KB Output is correct
50 Correct 131 ms 21972 KB Output is correct
51 Correct 123 ms 22028 KB Output is correct
52 Correct 148 ms 22312 KB Output is correct
53 Correct 49 ms 12116 KB Output is correct
54 Correct 51 ms 12368 KB Output is correct
55 Correct 117 ms 22180 KB Output is correct
56 Correct 149 ms 22172 KB Output is correct
57 Correct 68 ms 12048 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 860 KB Output is correct
61 Correct 94 ms 12116 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 392 KB Output is correct
65 Correct 32 ms 5780 KB Output is correct
66 Correct 81 ms 12576 KB Output is correct
67 Correct 54 ms 12372 KB Output is correct
68 Correct 55 ms 12068 KB Output is correct
69 Correct 79 ms 12060 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 1 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 1336 KB Output is correct
7 Correct 147 ms 22156 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 8 ms 1116 KB Output is correct
13 Correct 116 ms 22196 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 69 ms 16680 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 30 ms 5784 KB Output is correct
21 Correct 116 ms 21976 KB Output is correct
22 Correct 121 ms 22032 KB Output is correct
23 Correct 137 ms 22164 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 53 ms 12368 KB Output is correct
26 Correct 51 ms 12116 KB Output is correct
27 Correct 141 ms 22008 KB Output is correct
28 Correct 112 ms 22096 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 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 1 ms 344 KB Output is correct
36 Correct 9 ms 1116 KB Output is correct
37 Correct 136 ms 22100 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1316 KB Output is correct
41 Correct 171 ms 22408 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 68 ms 12316 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 28 ms 5808 KB Output is correct
50 Correct 131 ms 21972 KB Output is correct
51 Correct 123 ms 22028 KB Output is correct
52 Correct 148 ms 22312 KB Output is correct
53 Correct 49 ms 12116 KB Output is correct
54 Correct 51 ms 12368 KB Output is correct
55 Correct 117 ms 22180 KB Output is correct
56 Correct 149 ms 22172 KB Output is correct
57 Correct 68 ms 12048 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 30 ms 5780 KB Output is correct
62 Correct 120 ms 21976 KB Output is correct
63 Correct 162 ms 22104 KB Output is correct
64 Correct 148 ms 22164 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 35 ms 5712 KB Output is correct
67 Correct 113 ms 22164 KB Output is correct
68 Correct 138 ms 22096 KB Output is correct
69 Correct 143 ms 22016 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 1 ms 348 KB Output is correct
72 Correct 1 ms 348 KB Output is correct
73 Correct 30 ms 5724 KB Output is correct
74 Correct 144 ms 22164 KB Output is correct
75 Correct 132 ms 22100 KB Output is correct
76 Correct 126 ms 22100 KB Output is correct
77 Correct 118 ms 22044 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 860 KB Output is correct
81 Correct 94 ms 12116 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 392 KB Output is correct
85 Correct 32 ms 5780 KB Output is correct
86 Correct 81 ms 12576 KB Output is correct
87 Correct 54 ms 12372 KB Output is correct
88 Correct 55 ms 12068 KB Output is correct
89 Correct 79 ms 12060 KB Output is correct
90 Correct 1 ms 348 KB Output is correct
91 Correct 1 ms 348 KB Output is correct
92 Correct 3 ms 856 KB Output is correct
93 Correct 49 ms 12304 KB Output is correct
94 Correct 1 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 12 ms 3420 KB Output is correct
98 Correct 51 ms 12312 KB Output is correct
99 Correct 62 ms 12368 KB Output is correct
100 Correct 65 ms 12060 KB Output is correct
101 Correct 59 ms 12044 KB Output is correct
102 Incorrect 159 ms 22084 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -