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Submission #1014441

# Submission time Handle Problem Language Result Execution time Memory
1014441 2024-07-04T21:44:09 Z Ahmed_Solyman Connecting Supertrees (IOI20_supertrees) C++14
21 / 100
 137 ms 22116 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;
    }
}d,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=0;j<n;j++){
            if(p[i][j]==1)dsu.unite(i,j);
            if(p[i][j]==2)dsu2.unite(i,j);
        }
    }
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(!p[i][j] && (dsu.find(i)==dsu.find(j) || dsu2.find(i)==dsu2.find(j))){
                return 0;
            }
            if(dsu.find(i)==dsu.find(j) && 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][j-1]][v[i][j]]=1;
            b[v[i][j]][v[i][j-1]]=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);
    d.init(n);
    for(int i=0;i<n;i++){
        int m=(int)v[i].size();
        if(m<=1)continue;
        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;
            d.unite(dsu.find(v[i][j-1]),dsu.find(v[i][j]));
        }
        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;
        d.unite(dsu.find(v[i][0]),dsu.find(v[i][m-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 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 5 ms 1316 KB Output is correct
7 Correct 114 ms 22096 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 5 ms 1316 KB Output is correct
7 Correct 114 ms 22096 KB Output is correct
8 Correct 1 ms 348 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 4 ms 1116 KB Output is correct
13 Correct 107 ms 22100 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 51 ms 8216 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 372 KB Output is correct
20 Correct 31 ms 5860 KB Output is correct
21 Correct 121 ms 22032 KB Output is correct
22 Correct 125 ms 22116 KB Output is correct
23 Correct 122 ms 22036 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 49 ms 8208 KB Output is correct
26 Correct 49 ms 8272 KB Output is correct
27 Correct 137 ms 22024 KB Output is correct
28 Correct 119 ms 22040 KB Output is correct

Subtask #3
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 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
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 344 KB Output is correct
4 Correct 31 ms 5756 KB Output is correct
5 Correct 122 ms 22096 KB Output is correct
6 Correct 112 ms 22036 KB Output is correct
7 Correct 125 ms 22100 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 30 ms 5776 KB Output is correct
10 Correct 116 ms 22100 KB Output is correct
11 Correct 107 ms 22040 KB Output is correct
12 Correct 134 ms 22100 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Incorrect 0 ms 600 KB Answer gives possible 0 while actual possible 1
16 Halted 0 ms 0 KB -

Subtask #5
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 5 ms 1316 KB Output is correct
7 Correct 114 ms 22096 KB Output is correct
8 Correct 1 ms 348 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 4 ms 1116 KB Output is correct
13 Correct 107 ms 22100 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 51 ms 8216 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 372 KB Output is correct
20 Correct 31 ms 5860 KB Output is correct
21 Correct 121 ms 22032 KB Output is correct
22 Correct 125 ms 22116 KB Output is correct
23 Correct 122 ms 22036 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 49 ms 8208 KB Output is correct
26 Correct 49 ms 8272 KB Output is correct
27 Correct 137 ms 22024 KB Output is correct
28 Correct 119 ms 22040 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 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -

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 5 ms 1316 KB Output is correct
7 Correct 114 ms 22096 KB Output is correct
8 Correct 1 ms 348 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 4 ms 1116 KB Output is correct
13 Correct 107 ms 22100 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 51 ms 8216 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 372 KB Output is correct
20 Correct 31 ms 5860 KB Output is correct
21 Correct 121 ms 22032 KB Output is correct
22 Correct 125 ms 22116 KB Output is correct
23 Correct 122 ms 22036 KB Output is correct
24 Correct 112 ms 22096 KB Output is correct
25 Correct 49 ms 8208 KB Output is correct
26 Correct 49 ms 8272 KB Output is correct
27 Correct 137 ms 22024 KB Output is correct
28 Correct 119 ms 22040 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 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -