oj.uz

Submission #1070126

# Submission time Handle Problem Language Result Execution time Memory
1070126 2024-08-22T11:48:19 Z hasan2006 Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 273 ms 28000 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 = 0; 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 && x != y){
                    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= f =  0;
                for(auto to1:vv)
                if(v[to][to1] != 1)
                    return 0;
                for(j = 0; j < n; j++)
                    if(v[to][j] == 1)
                    s++;
                    else if(v[to][j])
                    f++;

                if(s != vv.size() || s + f != v1.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(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;
                }
            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:41:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for(x = 0; x < v1.size(); x++){
      |                    ~~^~~~~~~~~~~
supertrees.cpp:47:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |             for(y = 0; y < v1.size(); y++){
      |                        ~~^~~~~~~~~~~
supertrees.cpp:74:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |                 if(s != vv.size() || s + f != v1.size())
      |                    ~~^~~~~~~~~~~~
supertrees.cpp:74:44: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |                 if(s != vv.size() || s + f != v1.size())
      |                                      ~~~~~~^~~~~~~~~~~~
supertrees.cpp:92:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   92 |             if(v2.size() <= vc.back().fi){
      |                          ^
supertrees.cpp:115:40: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |             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 1 ms 348 KB Output is correct
2 Correct 0 ms 444 KB Output is correct
3 Correct 1 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 7 ms 1880 KB Output is correct
7 Correct 193 ms 28000 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 444 KB Output is correct
3 Correct 1 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 7 ms 1880 KB Output is correct
7 Correct 193 ms 28000 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 444 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 117 ms 23380 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 57 ms 13520 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 31 ms 6236 KB Output is correct
21 Correct 128 ms 23356 KB Output is correct
22 Correct 113 ms 23380 KB Output is correct
23 Correct 156 ms 23260 KB Output is correct
24 Correct 113 ms 23280 KB Output is correct
25 Correct 68 ms 13880 KB Output is correct
26 Correct 51 ms 13392 KB Output is correct
27 Correct 144 ms 23332 KB Output is correct
28 Correct 114 ms 23452 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 5 ms 1200 KB Output is correct
9 Correct 111 ms 23256 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 444 KB Output is correct
12 Correct 13 ms 1704 KB Output is correct
13 Correct 273 ms 26624 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 61 ms 13536 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 42 ms 6324 KB Output is correct
22 Correct 144 ms 23248 KB Output is correct
23 Correct 123 ms 23376 KB Output is correct
24 Correct 214 ms 24372 KB Output is correct
25 Correct 58 ms 13488 KB Output is correct
26 Correct 62 ms 13844 KB Output is correct
27 Correct 149 ms 23308 KB Output is correct
28 Correct 190 ms 23428 KB Output is correct
29 Correct 61 ms 13396 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 444 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 29 ms 6412 KB Output is correct
5 Correct 122 ms 23356 KB Output is correct
6 Correct 119 ms 23464 KB Output is correct
7 Correct 149 ms 23380 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 30 ms 6280 KB Output is correct
10 Correct 130 ms 23316 KB Output is correct
11 Correct 120 ms 23248 KB Output is correct
12 Correct 210 ms 24396 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 33 ms 6248 KB Output is correct
17 Correct 123 ms 23384 KB Output is correct
18 Correct 147 ms 23396 KB Output is correct
19 Correct 124 ms 23376 KB Output is correct
20 Correct 173 ms 23424 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 444 KB Output is correct
3 Correct 1 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 7 ms 1880 KB Output is correct
7 Correct 193 ms 28000 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 444 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 117 ms 23380 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 57 ms 13520 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 31 ms 6236 KB Output is correct
21 Correct 128 ms 23356 KB Output is correct
22 Correct 113 ms 23380 KB Output is correct
23 Correct 156 ms 23260 KB Output is correct
24 Correct 113 ms 23280 KB Output is correct
25 Correct 68 ms 13880 KB Output is correct
26 Correct 51 ms 13392 KB Output is correct
27 Correct 144 ms 23332 KB Output is correct
28 Correct 114 ms 23452 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 5 ms 1200 KB Output is correct
37 Correct 111 ms 23256 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 444 KB Output is correct
40 Correct 13 ms 1704 KB Output is correct
41 Correct 273 ms 26624 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 61 ms 13536 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 42 ms 6324 KB Output is correct
50 Correct 144 ms 23248 KB Output is correct
51 Correct 123 ms 23376 KB Output is correct
52 Correct 214 ms 24372 KB Output is correct
53 Correct 58 ms 13488 KB Output is correct
54 Correct 62 ms 13844 KB Output is correct
55 Correct 149 ms 23308 KB Output is correct
56 Correct 190 ms 23428 KB Output is correct
57 Correct 61 ms 13396 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 3 ms 860 KB Output is correct
61 Correct 55 ms 13396 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 29 ms 6228 KB Output is correct
66 Correct 53 ms 13644 KB Output is correct
67 Correct 55 ms 13856 KB Output is correct
68 Correct 53 ms 13392 KB Output is correct
69 Correct 50 ms 13428 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 444 KB Output is correct
3 Correct 1 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 7 ms 1880 KB Output is correct
7 Correct 193 ms 28000 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 444 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 117 ms 23380 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 57 ms 13520 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 31 ms 6236 KB Output is correct
21 Correct 128 ms 23356 KB Output is correct
22 Correct 113 ms 23380 KB Output is correct
23 Correct 156 ms 23260 KB Output is correct
24 Correct 113 ms 23280 KB Output is correct
25 Correct 68 ms 13880 KB Output is correct
26 Correct 51 ms 13392 KB Output is correct
27 Correct 144 ms 23332 KB Output is correct
28 Correct 114 ms 23452 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 5 ms 1200 KB Output is correct
37 Correct 111 ms 23256 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 0 ms 444 KB Output is correct
40 Correct 13 ms 1704 KB Output is correct
41 Correct 273 ms 26624 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 61 ms 13536 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 42 ms 6324 KB Output is correct
50 Correct 144 ms 23248 KB Output is correct
51 Correct 123 ms 23376 KB Output is correct
52 Correct 214 ms 24372 KB Output is correct
53 Correct 58 ms 13488 KB Output is correct
54 Correct 62 ms 13844 KB Output is correct
55 Correct 149 ms 23308 KB Output is correct
56 Correct 190 ms 23428 KB Output is correct
57 Correct 61 ms 13396 KB Output is correct
58 Correct 0 ms 444 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 29 ms 6412 KB Output is correct
62 Correct 122 ms 23356 KB Output is correct
63 Correct 119 ms 23464 KB Output is correct
64 Correct 149 ms 23380 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 30 ms 6280 KB Output is correct
67 Correct 130 ms 23316 KB Output is correct
68 Correct 120 ms 23248 KB Output is correct
69 Correct 210 ms 24396 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 33 ms 6248 KB Output is correct
74 Correct 123 ms 23384 KB Output is correct
75 Correct 147 ms 23396 KB Output is correct
76 Correct 124 ms 23376 KB Output is correct
77 Correct 173 ms 23424 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 1 ms 348 KB Output is correct
80 Correct 3 ms 860 KB Output is correct
81 Correct 55 ms 13396 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 29 ms 6228 KB Output is correct
86 Correct 53 ms 13644 KB Output is correct
87 Correct 55 ms 13856 KB Output is correct
88 Correct 53 ms 13392 KB Output is correct
89 Correct 50 ms 13428 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 2 ms 860 KB Output is correct
93 Correct 59 ms 13396 KB Output is correct
94 Correct 0 ms 600 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 600 KB Output is correct
97 Correct 13 ms 3672 KB Output is correct
98 Correct 52 ms 13856 KB Output is correct
99 Correct 68 ms 13880 KB Output is correct
100 Correct 69 ms 13616 KB Output is correct
101 Correct 78 ms 13576 KB Output is correct
102 Incorrect 264 ms 27324 KB Answer gives possible 1 while actual possible 0
103 Halted 0 ms 0 KB -