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Submission #1014457

# Submission time Handle Problem Language Result Execution time Memory
1014457 2024-07-04T23:02:10 Z Ahmed_Solyman Connecting Supertrees (IOI20_supertrees) C++14
96 / 100
 148 ms 24352 KB 
/*
In the name of Allah
made by: Ahmed_Solyman
*/
#include <bits/stdc++.h>
#include <ext/rope>

using namespace std;
using namespace __gnu_cxx;
#pragma GCC optimize("-Ofast")
#pragma GCC optimize("-O1")
//-------------------------------------------------------------//
typedef long long ll;
typedef unsigned long long ull;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define PI acos(-1)
#define lb lower_bound
#define ub upper_bound
#define all(v) v.begin(),v.end()
#define allr(v) v.rbegin(),v.rend()
#define sum_to(n) (n*(n+1))/2
#define pb push_back
#define pf push_front
#define fil(arr,x) memset(arr,x,sizeof(arr))
#define endl '\n'
const ll mod=1e9+7;
int dx[8]={0,1,0,-1,1,1,-1,-1};
int dy[8]={1,0,-1,0,1,-1,-1,1};
//-------------------------------------------------------------//
ll lcm(ll a,ll b)
{
    return (max(a,b)/__gcd(a,b))*min(a,b);
}
void person_bool(bool x)
{
    cout<<(x?"YES":"NO")<<endl;
}
void build(vector<vector<int>>b);
struct DSU{
    vector<int>P,sz;
    void init(int n){
        P.resize(n+5);
        sz.assign(n+5,1);
        for(int i=0;i<n+5;i++)P[i]=i;
    }
    int find(int node){
        if(P[node]==node)return node;
        return P[node]=find(P[node]);
    }
    bool unite(int a,int b){
        int p1=find(a);
        int p2=find(b);
        if(p1==p2){
            return 0;
        }
        if(sz[p1]>sz[p2]){
            swap(p1,p2);
        }
        P[p1]=p2;
        sz[p2]+=sz[p1];
        return 1;
    }
}dsu,dsu2;
int construct(vector<vector<int>> p){
    int n=p.size();
    dsu.init(n);
    dsu2.init(n);
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(p[i][j]==1)dsu.unite(i,j);
        }
    }
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(p[i][j]!=1 && dsu.find(i)==dsu.find(j)){
                return 0;
            }
            if(p[i][j]==2)dsu2.unite(dsu.find(i),dsu.find(j));
        }
    }
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(p[i][j]==0 && dsu2.find(i)==dsu2.find(j)){
                return 0;
            }
        }
    }
    vector<int>v[n];
    for(int i=0;i<n;i++)v[dsu.find(i)].push_back(i);
    vector<vector<int>>b(n,vector<int>(n));
    for(int i=0;i<n;i++){
        int m=(int)v[i].size();
        for(int j=1;j<m;j++){
            b[v[i][0]][v[i][j]]=1;
            b[v[i][j]][v[i][0]]=1;
        }
    }
    for(int i=0;i<n;i++){
        v[i].clear();
    }
    for(int i=0;i<n;i++)v[dsu2.find(i)].push_back(i);
    for(int i=0;i<n;i++){
        int m=(int)v[i].size();
        if(m<=1)continue;
        if(m==2){
            return 0;
        }
        for(int j=1;j<m;j++){
            b[dsu.find(v[i][j-1])][dsu.find(v[i][j])]=1;
            b[dsu.find(v[i][j])][dsu.find(v[i][j-1])]=1;
        }
        b[dsu.find(v[i][0])][dsu.find(v[i][m-1])]=1;
        b[dsu.find(v[i][m-1])][dsu.find(v[i][0])]=1;
    }
    build(b);
    return 1;
}

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 408 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 111 ms 24056 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 408 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 111 ms 24056 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 344 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 116 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 59 ms 10108 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6304 KB Output is correct
21 Correct 115 ms 24148 KB Output is correct
22 Correct 114 ms 24184 KB Output is correct
23 Correct 121 ms 24060 KB Output is correct
24 Correct 141 ms 24192 KB Output is correct
25 Correct 48 ms 10064 KB Output is correct
26 Correct 47 ms 10068 KB Output is correct
27 Correct 131 ms 24144 KB Output is correct
28 Correct 109 ms 24052 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 5 ms 1372 KB Output is correct
9 Correct 113 ms 24148 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 5 ms 1368 KB Output is correct
13 Correct 107 ms 24108 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 432 KB Output is correct
16 Correct 3 ms 708 KB Output is correct
17 Correct 60 ms 10240 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 344 KB Output is correct
21 Correct 29 ms 6316 KB Output is correct
22 Correct 116 ms 24056 KB Output is correct
23 Correct 117 ms 24200 KB Output is correct
24 Correct 118 ms 24144 KB Output is correct
25 Correct 50 ms 14164 KB Output is correct
26 Correct 50 ms 10068 KB Output is correct
27 Correct 113 ms 24256 KB Output is correct
28 Correct 119 ms 24148 KB Output is correct
29 Correct 53 ms 14084 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 0 ms 348 KB Output is correct
4 Correct 38 ms 6224 KB Output is correct
5 Correct 108 ms 24148 KB Output is correct
6 Correct 134 ms 24148 KB Output is correct
7 Correct 121 ms 24188 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 27 ms 6356 KB Output is correct
10 Correct 129 ms 24072 KB Output is correct
11 Correct 113 ms 24192 KB Output is correct
12 Correct 109 ms 23976 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 30 ms 6232 KB Output is correct
17 Correct 125 ms 24128 KB Output is correct
18 Correct 115 ms 24352 KB Output is correct
19 Correct 110 ms 24200 KB Output is correct
20 Correct 148 ms 24144 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 408 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 111 ms 24056 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 344 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 116 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 59 ms 10108 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6304 KB Output is correct
21 Correct 115 ms 24148 KB Output is correct
22 Correct 114 ms 24184 KB Output is correct
23 Correct 121 ms 24060 KB Output is correct
24 Correct 141 ms 24192 KB Output is correct
25 Correct 48 ms 10064 KB Output is correct
26 Correct 47 ms 10068 KB Output is correct
27 Correct 131 ms 24144 KB Output is correct
28 Correct 109 ms 24052 KB Output is correct
29 Correct 0 ms 344 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 5 ms 1372 KB Output is correct
37 Correct 113 ms 24148 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 5 ms 1368 KB Output is correct
41 Correct 107 ms 24108 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 0 ms 432 KB Output is correct
44 Correct 3 ms 708 KB Output is correct
45 Correct 60 ms 10240 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 344 KB Output is correct
49 Correct 29 ms 6316 KB Output is correct
50 Correct 116 ms 24056 KB Output is correct
51 Correct 117 ms 24200 KB Output is correct
52 Correct 118 ms 24144 KB Output is correct
53 Correct 50 ms 14164 KB Output is correct
54 Correct 50 ms 10068 KB Output is correct
55 Correct 113 ms 24256 KB Output is correct
56 Correct 119 ms 24148 KB Output is correct
57 Correct 53 ms 14084 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 2 ms 672 KB Output is correct
61 Correct 56 ms 10124 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 436 KB Output is correct
65 Correct 30 ms 6200 KB Output is correct
66 Correct 49 ms 10064 KB Output is correct
67 Correct 50 ms 10068 KB Output is correct
68 Correct 57 ms 10064 KB Output is correct
69 Correct 51 ms 14164 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 408 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1372 KB Output is correct
7 Correct 111 ms 24056 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 344 KB Output is correct
12 Correct 5 ms 1372 KB Output is correct
13 Correct 116 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 59 ms 10108 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 6304 KB Output is correct
21 Correct 115 ms 24148 KB Output is correct
22 Correct 114 ms 24184 KB Output is correct
23 Correct 121 ms 24060 KB Output is correct
24 Correct 141 ms 24192 KB Output is correct
25 Correct 48 ms 10064 KB Output is correct
26 Correct 47 ms 10068 KB Output is correct
27 Correct 131 ms 24144 KB Output is correct
28 Correct 109 ms 24052 KB Output is correct
29 Correct 0 ms 344 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 5 ms 1372 KB Output is correct
37 Correct 113 ms 24148 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 5 ms 1368 KB Output is correct
41 Correct 107 ms 24108 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 0 ms 432 KB Output is correct
44 Correct 3 ms 708 KB Output is correct
45 Correct 60 ms 10240 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 344 KB Output is correct
49 Correct 29 ms 6316 KB Output is correct
50 Correct 116 ms 24056 KB Output is correct
51 Correct 117 ms 24200 KB Output is correct
52 Correct 118 ms 24144 KB Output is correct
53 Correct 50 ms 14164 KB Output is correct
54 Correct 50 ms 10068 KB Output is correct
55 Correct 113 ms 24256 KB Output is correct
56 Correct 119 ms 24148 KB Output is correct
57 Correct 53 ms 14084 KB Output is correct
58 Correct 1 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 38 ms 6224 KB Output is correct
62 Correct 108 ms 24148 KB Output is correct
63 Correct 134 ms 24148 KB Output is correct
64 Correct 121 ms 24188 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 27 ms 6356 KB Output is correct
67 Correct 129 ms 24072 KB Output is correct
68 Correct 113 ms 24192 KB Output is correct
69 Correct 109 ms 23976 KB Output is correct
70 Correct 1 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 604 KB Output is correct
73 Correct 30 ms 6232 KB Output is correct
74 Correct 125 ms 24128 KB Output is correct
75 Correct 115 ms 24352 KB Output is correct
76 Correct 110 ms 24200 KB Output is correct
77 Correct 148 ms 24144 KB Output is correct
78 Correct 1 ms 348 KB Output is correct
79 Correct 1 ms 348 KB Output is correct
80 Correct 2 ms 672 KB Output is correct
81 Correct 56 ms 10124 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 436 KB Output is correct
85 Correct 30 ms 6200 KB Output is correct
86 Correct 49 ms 10064 KB Output is correct
87 Correct 50 ms 10068 KB Output is correct
88 Correct 57 ms 10064 KB Output is correct
89 Correct 51 ms 14164 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 704 KB Output is correct
93 Correct 52 ms 10064 KB Output is correct
94 Incorrect 0 ms 344 KB Answer gives possible 1 while actual possible 0
95 Halted 0 ms 0 KB -