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답안 #1014426

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1014426 2024-07-04T21:07:48 Z Ahmed_Solyman 슈퍼트리 잇기 (IOI20_supertrees) C++14
40 / 100
 130 ms 22216 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]));
        }
        if(m==2){
            return 0;
        }
        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]));
    }
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(d.find(i) == d.find(j) && p[i][j]==0){
                return 0;
            }
        }
    }
    build(b);
    return 1;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 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 9 ms 1116 KB Output is correct
7 Correct 103 ms 22208 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 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 9 ms 1116 KB Output is correct
7 Correct 103 ms 22208 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 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 111 ms 22032 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 604 KB Output is correct
17 Correct 57 ms 8272 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 5724 KB Output is correct
21 Correct 115 ms 22044 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 126 ms 22100 KB Output is correct
24 Correct 100 ms 22096 KB Output is correct
25 Correct 45 ms 8204 KB Output is correct
26 Correct 43 ms 8272 KB Output is correct
27 Correct 115 ms 22096 KB Output is correct
28 Correct 99 ms 22100 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 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 4 ms 1112 KB Output is correct
9 Correct 125 ms 22100 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 1116 KB Output is correct
13 Correct 110 ms 22040 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 65 ms 8200 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 36 ms 5760 KB Output is correct
22 Correct 114 ms 22216 KB Output is correct
23 Correct 121 ms 22100 KB Output is correct
24 Correct 119 ms 22100 KB Output is correct
25 Correct 45 ms 12308 KB Output is correct
26 Correct 48 ms 8216 KB Output is correct
27 Correct 108 ms 22100 KB Output is correct
28 Correct 105 ms 22036 KB Output is correct
29 Correct 42 ms 12116 KB Output is correct

Subtask #4
0 / 35.0

# 결과 실행 시간 메모리 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 25 ms 5952 KB Output is correct
5 Correct 130 ms 22096 KB Output is correct
6 Correct 105 ms 22100 KB Output is correct
7 Correct 110 ms 22096 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 27 ms 5712 KB Output is correct
10 Correct 105 ms 22096 KB Output is correct
11 Correct 102 ms 22032 KB Output is correct
12 Correct 104 ms 22036 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Incorrect 0 ms 344 KB Answer gives possible 0 while actual possible 1
16 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 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 9 ms 1116 KB Output is correct
7 Correct 103 ms 22208 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 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 111 ms 22032 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 604 KB Output is correct
17 Correct 57 ms 8272 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 5724 KB Output is correct
21 Correct 115 ms 22044 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 126 ms 22100 KB Output is correct
24 Correct 100 ms 22096 KB Output is correct
25 Correct 45 ms 8204 KB Output is correct
26 Correct 43 ms 8272 KB Output is correct
27 Correct 115 ms 22096 KB Output is correct
28 Correct 99 ms 22100 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 4 ms 1112 KB Output is correct
37 Correct 125 ms 22100 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 5 ms 1116 KB Output is correct
41 Correct 110 ms 22040 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 4 ms 600 KB Output is correct
45 Correct 65 ms 8200 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 36 ms 5760 KB Output is correct
50 Correct 114 ms 22216 KB Output is correct
51 Correct 121 ms 22100 KB Output is correct
52 Correct 119 ms 22100 KB Output is correct
53 Correct 45 ms 12308 KB Output is correct
54 Correct 48 ms 8216 KB Output is correct
55 Correct 108 ms 22100 KB Output is correct
56 Correct 105 ms 22036 KB Output is correct
57 Correct 42 ms 12116 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 604 KB Output is correct
61 Correct 57 ms 8212 KB Output is correct
62 Correct 1 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 Incorrect 10 ms 2396 KB Answer gives possible 0 while actual possible 1
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 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 9 ms 1116 KB Output is correct
7 Correct 103 ms 22208 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 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 111 ms 22032 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 604 KB Output is correct
17 Correct 57 ms 8272 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 28 ms 5724 KB Output is correct
21 Correct 115 ms 22044 KB Output is correct
22 Correct 116 ms 22100 KB Output is correct
23 Correct 126 ms 22100 KB Output is correct
24 Correct 100 ms 22096 KB Output is correct
25 Correct 45 ms 8204 KB Output is correct
26 Correct 43 ms 8272 KB Output is correct
27 Correct 115 ms 22096 KB Output is correct
28 Correct 99 ms 22100 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 4 ms 1112 KB Output is correct
37 Correct 125 ms 22100 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 5 ms 1116 KB Output is correct
41 Correct 110 ms 22040 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 4 ms 600 KB Output is correct
45 Correct 65 ms 8200 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 36 ms 5760 KB Output is correct
50 Correct 114 ms 22216 KB Output is correct
51 Correct 121 ms 22100 KB Output is correct
52 Correct 119 ms 22100 KB Output is correct
53 Correct 45 ms 12308 KB Output is correct
54 Correct 48 ms 8216 KB Output is correct
55 Correct 108 ms 22100 KB Output is correct
56 Correct 105 ms 22036 KB Output is correct
57 Correct 42 ms 12116 KB Output is correct
58 Correct 0 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 25 ms 5952 KB Output is correct
62 Correct 130 ms 22096 KB Output is correct
63 Correct 105 ms 22100 KB Output is correct
64 Correct 110 ms 22096 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 27 ms 5712 KB Output is correct
67 Correct 105 ms 22096 KB Output is correct
68 Correct 102 ms 22032 KB Output is correct
69 Correct 104 ms 22036 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Incorrect 0 ms 344 KB Answer gives possible 0 while actual possible 1
73 Halted 0 ms 0 KB -