oj.uz

Submission #1069985

# Submission time Handle Problem Language Result Execution time Memory
1069985 2024-08-22T10:49:47 Z hasan2006 Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 210 ms 22224 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];
            vector<int>vv;
            vv.pb(f);
            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];
                    vv.pb(f);
                }
            }
            if(b[v1[x]] == 3)
            for(auto to : vv){
                s=  0;
                for(auto to1:vv)
                if(v[to][to1] != 1)
                    return 0;
                for(j = 0; j < n; j++)
                    if(v[to][j] == 1)
                    s++;
                if(s != vv.size())
                    return 0;
            }
        }
        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:48:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |             for(y = x + 1; y < v1.size(); y++){
      |                            ~~^~~~~~~~~~~
supertrees.cpp:72:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |                 if(s != vv.size())
      |                    ~~^~~~~~~~~~~~
supertrees.cpp:90:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 |             if(v2.size() <= vc.back().fi){
      |                          ^
supertrees.cpp:117:40: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |             if((L > l) || (R > r) || s != v1.size())
      |                                      ~~^~~~~~~~~~~~
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 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 1 ms 412 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 12 ms 1312 KB Output is correct
7 Correct 142 ms 22152 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 1 ms 412 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 12 ms 1312 KB Output is correct
7 Correct 142 ms 22152 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 115 ms 22044 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 55 ms 12316 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 34 ms 5968 KB Output is correct
21 Correct 125 ms 22084 KB Output is correct
22 Correct 141 ms 22100 KB Output is correct
23 Correct 140 ms 22052 KB Output is correct
24 Correct 155 ms 22100 KB Output is correct
25 Correct 55 ms 12324 KB Output is correct
26 Correct 85 ms 12112 KB Output is correct
27 Correct 141 ms 22136 KB Output is correct
28 Correct 114 ms 21988 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 360 KB Output is correct
2 Correct 1 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 1 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 1116 KB Output is correct
9 Correct 146 ms 22032 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1348 KB Output is correct
13 Correct 210 ms 22180 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 64 ms 12060 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 29 ms 5852 KB Output is correct
22 Correct 135 ms 21972 KB Output is correct
23 Correct 142 ms 22040 KB Output is correct
24 Correct 155 ms 21984 KB Output is correct
25 Correct 77 ms 12116 KB Output is correct
26 Correct 64 ms 12320 KB Output is correct
27 Correct 115 ms 22100 KB Output is correct
28 Correct 146 ms 21980 KB Output is correct
29 Correct 49 ms 12116 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 28 ms 5892 KB Output is correct
5 Correct 127 ms 21976 KB Output is correct
6 Correct 113 ms 22096 KB Output is correct
7 Correct 177 ms 21972 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 28 ms 5808 KB Output is correct
10 Correct 117 ms 22168 KB Output is correct
11 Correct 116 ms 22100 KB Output is correct
12 Correct 147 ms 22224 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 348 KB Output is correct
16 Correct 28 ms 5688 KB Output is correct
17 Correct 114 ms 22184 KB Output is correct
18 Correct 135 ms 22108 KB Output is correct
19 Correct 113 ms 22048 KB Output is correct
20 Correct 111 ms 22096 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 1 ms 412 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 12 ms 1312 KB Output is correct
7 Correct 142 ms 22152 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 115 ms 22044 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 55 ms 12316 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 34 ms 5968 KB Output is correct
21 Correct 125 ms 22084 KB Output is correct
22 Correct 141 ms 22100 KB Output is correct
23 Correct 140 ms 22052 KB Output is correct
24 Correct 155 ms 22100 KB Output is correct
25 Correct 55 ms 12324 KB Output is correct
26 Correct 85 ms 12112 KB Output is correct
27 Correct 141 ms 22136 KB Output is correct
28 Correct 114 ms 21988 KB Output is correct
29 Correct 1 ms 360 KB Output is correct
30 Correct 1 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 1 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 1116 KB Output is correct
37 Correct 146 ms 22032 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 6 ms 1348 KB Output is correct
41 Correct 210 ms 22180 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 64 ms 12060 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 29 ms 5852 KB Output is correct
50 Correct 135 ms 21972 KB Output is correct
51 Correct 142 ms 22040 KB Output is correct
52 Correct 155 ms 21984 KB Output is correct
53 Correct 77 ms 12116 KB Output is correct
54 Correct 64 ms 12320 KB Output is correct
55 Correct 115 ms 22100 KB Output is correct
56 Correct 146 ms 21980 KB Output is correct
57 Correct 49 ms 12116 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 52 ms 12064 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 40 ms 5820 KB Output is correct
66 Correct 51 ms 12316 KB Output is correct
67 Correct 53 ms 12324 KB Output is correct
68 Correct 47 ms 12116 KB Output is correct
69 Correct 47 ms 12112 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 1 ms 412 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 12 ms 1312 KB Output is correct
7 Correct 142 ms 22152 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 115 ms 22044 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 55 ms 12316 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 34 ms 5968 KB Output is correct
21 Correct 125 ms 22084 KB Output is correct
22 Correct 141 ms 22100 KB Output is correct
23 Correct 140 ms 22052 KB Output is correct
24 Correct 155 ms 22100 KB Output is correct
25 Correct 55 ms 12324 KB Output is correct
26 Correct 85 ms 12112 KB Output is correct
27 Correct 141 ms 22136 KB Output is correct
28 Correct 114 ms 21988 KB Output is correct
29 Correct 1 ms 360 KB Output is correct
30 Correct 1 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 1 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 1116 KB Output is correct
37 Correct 146 ms 22032 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 6 ms 1348 KB Output is correct
41 Correct 210 ms 22180 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 64 ms 12060 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 29 ms 5852 KB Output is correct
50 Correct 135 ms 21972 KB Output is correct
51 Correct 142 ms 22040 KB Output is correct
52 Correct 155 ms 21984 KB Output is correct
53 Correct 77 ms 12116 KB Output is correct
54 Correct 64 ms 12320 KB Output is correct
55 Correct 115 ms 22100 KB Output is correct
56 Correct 146 ms 21980 KB Output is correct
57 Correct 49 ms 12116 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 28 ms 5892 KB Output is correct
62 Correct 127 ms 21976 KB Output is correct
63 Correct 113 ms 22096 KB Output is correct
64 Correct 177 ms 21972 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 28 ms 5808 KB Output is correct
67 Correct 117 ms 22168 KB Output is correct
68 Correct 116 ms 22100 KB Output is correct
69 Correct 147 ms 22224 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 348 KB Output is correct
73 Correct 28 ms 5688 KB Output is correct
74 Correct 114 ms 22184 KB Output is correct
75 Correct 135 ms 22108 KB Output is correct
76 Correct 113 ms 22048 KB Output is correct
77 Correct 111 ms 22096 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 2 ms 860 KB Output is correct
81 Correct 52 ms 12064 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 40 ms 5820 KB Output is correct
86 Correct 51 ms 12316 KB Output is correct
87 Correct 53 ms 12324 KB Output is correct
88 Correct 47 ms 12116 KB Output is correct
89 Correct 47 ms 12112 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 3 ms 860 KB Output is correct
93 Correct 55 ms 12324 KB Output is correct
94 Correct 1 ms 344 KB Output is correct
95 Correct 0 ms 344 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Correct 12 ms 3224 KB Output is correct
98 Correct 53 ms 12372 KB Output is correct
99 Correct 51 ms 12372 KB Output is correct
100 Correct 54 ms 12112 KB Output is correct
101 Correct 50 ms 12116 KB Output is correct
102 Incorrect 143 ms 22212 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -