oj.uz

답안 #488089

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
488089 2021-11-17T16:12:05 Z SlavicG 슈퍼트리 잇기 (IOI20_supertrees) C++17
100 / 100
 223 ms 26096 KB 
#include "supertrees.h"
#include "bits/stdc++.h"
using namespace std;
 
#define ll long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()
 
struct DSU{
    int n;
    vector<int> par, s;
 
    DSU(int N){
        n = N;
        s.assign(n, 1), par.resize(n);
        iota(all(par), 0);
    }
 
    int get(int a){
        return par[a] = (a == par[a] ? a : get(par[a]));
    }
 
    void uni(int a, int b){
        a = get(a), b = get(b);
        if(s[a] > s[b])swap(a, b);
        par[a] = b, s[b] += s[a];
    }
 
    int get_size(int a){
        return s[get(a)];
    }
    bool same_set(int a, int b){
        return get(a) == get(b);
    }
};
 
const int N = 1005;
vector<int> adj[N], adj2[N];
vector<int> component;
bool vis[N];

void dfs(int u){
    component.pb(u);
    vis[u] = true;
    for(int v: adj[u])if(!vis[v])dfs(v);
}
 
int construct(vector<vector<int>> p){
    int n = sz(p);
    vector<vector<int>> ans(n, vector<int>(n, 0));
    
    forn(i,n)adj[i].clear(), adj2[i].clear();
    DSU d(n);
    DSU fuck(n);    
    for(int i = 0;i < n; ++i){
        for(int j = 0;j < n; ++j){
            if(p[i][j] == 3)return 0;
            if(i == j)continue;
            if(p[i][j] != p[j][i])return 0;
        }
    }
    for(int i = 0;i < n; ++i){
        vis[i] = false;
        for(int j = 0;j < n; ++j){
            if(p[i][j] == 2 && i != j){
                adj[i].pb(j);
            }
            if(p[i][j] == 1 && i != j){
                if(!d.same_set(i, j)){
                    d.uni(i, j);
                    ans[i][j] = ans[j][i] = 1;
                }
            }
        }
    }
    for(int i = 0;i < n; ++i){
        if(!vis[d.get(i)]){
            component.clear();
            dfs(i);
            vector<int> temp;
            for(auto x: component)vis[d.get(x)] = true;
            for(int i = 0;i < sz(component);++i){
                component[i] = d.get(component[i]);
            }
            sort(all(component));
            component.erase(unique(all(component)), component.end());
            if(sz(component) == 2)return 0;
            for(int i = 0;i < sz(component); ++i){
                if(sz(component) > 1)ans[component[i]][component[(i + 1) % sz(component)]] = ans[component[(i + 1) % sz(component)]][component[i]] = 1;
                fuck.uni(component[i], component[(i + 1) % sz(component)]);
            }
        }
    }

    for(int i = 0;i < n; ++i){
        for(int j = 0;j < n; ++j){
            if(i == j)continue;
            if(ans[i][j] && !p[i][j])return 0;
            if(fuck.same_set(i, j) && !p[i][j])return 0;
            if(d.same_set(i, j) && !p[i][j])return 0;
        }
    }
    for(int i = 0;i < n; ++i){
        adj[i].clear();
        adj2[i].clear();
        vis[i] = false;
    }
    build(ans);
    return 1;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 10 ms 1140 KB Output is correct
7 Correct 174 ms 22092 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 10 ms 1140 KB Output is correct
7 Correct 174 ms 22092 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 10 ms 1140 KB Output is correct
13 Correct 163 ms 22064 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 91 ms 12072 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 49 ms 5692 KB Output is correct
21 Correct 173 ms 22084 KB Output is correct
22 Correct 190 ms 22060 KB Output is correct
23 Correct 188 ms 22088 KB Output is correct
24 Correct 172 ms 22108 KB Output is correct
25 Correct 77 ms 12072 KB Output is correct
26 Correct 70 ms 12076 KB Output is correct
27 Correct 190 ms 22060 KB Output is correct
28 Correct 173 ms 22104 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 8 ms 1188 KB Output is correct
9 Correct 186 ms 22060 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 8 ms 1420 KB Output is correct
13 Correct 187 ms 26096 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 5 ms 844 KB Output is correct
17 Correct 82 ms 14632 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 62 ms 5788 KB Output is correct
22 Correct 221 ms 22584 KB Output is correct
23 Correct 178 ms 22084 KB Output is correct
24 Correct 189 ms 25096 KB Output is correct
25 Correct 67 ms 12088 KB Output is correct
26 Correct 70 ms 12600 KB Output is correct
27 Correct 177 ms 22060 KB Output is correct
28 Correct 191 ms 24108 KB Output is correct
29 Correct 70 ms 12076 KB Output is correct

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 43 ms 5708 KB Output is correct
5 Correct 190 ms 22060 KB Output is correct
6 Correct 223 ms 22084 KB Output is correct
7 Correct 205 ms 22072 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 45 ms 5744 KB Output is correct
10 Correct 177 ms 22572 KB Output is correct
11 Correct 182 ms 22084 KB Output is correct
12 Correct 184 ms 25156 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 44 ms 5760 KB Output is correct
17 Correct 180 ms 22600 KB Output is correct
18 Correct 190 ms 22708 KB Output is correct
19 Correct 181 ms 22160 KB Output is correct
20 Correct 169 ms 22084 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 10 ms 1140 KB Output is correct
7 Correct 174 ms 22092 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 10 ms 1140 KB Output is correct
13 Correct 163 ms 22064 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 91 ms 12072 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 49 ms 5692 KB Output is correct
21 Correct 173 ms 22084 KB Output is correct
22 Correct 190 ms 22060 KB Output is correct
23 Correct 188 ms 22088 KB Output is correct
24 Correct 172 ms 22108 KB Output is correct
25 Correct 77 ms 12072 KB Output is correct
26 Correct 70 ms 12076 KB Output is correct
27 Correct 190 ms 22060 KB Output is correct
28 Correct 173 ms 22104 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 8 ms 1188 KB Output is correct
37 Correct 186 ms 22060 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 8 ms 1420 KB Output is correct
41 Correct 187 ms 26096 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 5 ms 844 KB Output is correct
45 Correct 82 ms 14632 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 62 ms 5788 KB Output is correct
50 Correct 221 ms 22584 KB Output is correct
51 Correct 178 ms 22084 KB Output is correct
52 Correct 189 ms 25096 KB Output is correct
53 Correct 67 ms 12088 KB Output is correct
54 Correct 70 ms 12600 KB Output is correct
55 Correct 177 ms 22060 KB Output is correct
56 Correct 191 ms 24108 KB Output is correct
57 Correct 70 ms 12076 KB Output is correct
58 Correct 0 ms 332 KB Output is correct
59 Correct 0 ms 332 KB Output is correct
60 Correct 6 ms 844 KB Output is correct
61 Correct 85 ms 14252 KB Output is correct
62 Correct 0 ms 332 KB Output is correct
63 Correct 0 ms 332 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 60 ms 5772 KB Output is correct
66 Correct 72 ms 12724 KB Output is correct
67 Correct 71 ms 12588 KB Output is correct
68 Correct 68 ms 12312 KB Output is correct
69 Correct 69 ms 12084 KB Output is correct

Subtask #6
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 10 ms 1140 KB Output is correct
7 Correct 174 ms 22092 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 10 ms 1140 KB Output is correct
13 Correct 163 ms 22064 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 6 ms 716 KB Output is correct
17 Correct 91 ms 12072 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 49 ms 5692 KB Output is correct
21 Correct 173 ms 22084 KB Output is correct
22 Correct 190 ms 22060 KB Output is correct
23 Correct 188 ms 22088 KB Output is correct
24 Correct 172 ms 22108 KB Output is correct
25 Correct 77 ms 12072 KB Output is correct
26 Correct 70 ms 12076 KB Output is correct
27 Correct 190 ms 22060 KB Output is correct
28 Correct 173 ms 22104 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 8 ms 1188 KB Output is correct
37 Correct 186 ms 22060 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 8 ms 1420 KB Output is correct
41 Correct 187 ms 26096 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 5 ms 844 KB Output is correct
45 Correct 82 ms 14632 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 62 ms 5788 KB Output is correct
50 Correct 221 ms 22584 KB Output is correct
51 Correct 178 ms 22084 KB Output is correct
52 Correct 189 ms 25096 KB Output is correct
53 Correct 67 ms 12088 KB Output is correct
54 Correct 70 ms 12600 KB Output is correct
55 Correct 177 ms 22060 KB Output is correct
56 Correct 191 ms 24108 KB Output is correct
57 Correct 70 ms 12076 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 0 ms 332 KB Output is correct
61 Correct 43 ms 5708 KB Output is correct
62 Correct 190 ms 22060 KB Output is correct
63 Correct 223 ms 22084 KB Output is correct
64 Correct 205 ms 22072 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 45 ms 5744 KB Output is correct
67 Correct 177 ms 22572 KB Output is correct
68 Correct 182 ms 22084 KB Output is correct
69 Correct 184 ms 25156 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 0 ms 332 KB Output is correct
72 Correct 0 ms 332 KB Output is correct
73 Correct 44 ms 5760 KB Output is correct
74 Correct 180 ms 22600 KB Output is correct
75 Correct 190 ms 22708 KB Output is correct
76 Correct 181 ms 22160 KB Output is correct
77 Correct 169 ms 22084 KB Output is correct
78 Correct 0 ms 332 KB Output is correct
79 Correct 0 ms 332 KB Output is correct
80 Correct 6 ms 844 KB Output is correct
81 Correct 85 ms 14252 KB Output is correct
82 Correct 0 ms 332 KB Output is correct
83 Correct 0 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 60 ms 5772 KB Output is correct
86 Correct 72 ms 12724 KB Output is correct
87 Correct 71 ms 12588 KB Output is correct
88 Correct 68 ms 12312 KB Output is correct
89 Correct 69 ms 12084 KB Output is correct
90 Correct 1 ms 332 KB Output is correct
91 Correct 1 ms 332 KB Output is correct
92 Correct 3 ms 716 KB Output is correct
93 Correct 73 ms 12076 KB Output is correct
94 Correct 0 ms 332 KB Output is correct
95 Correct 0 ms 332 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 17 ms 3760 KB Output is correct
98 Correct 65 ms 12676 KB Output is correct
99 Correct 70 ms 12640 KB Output is correct
100 Correct 65 ms 12680 KB Output is correct
101 Correct 64 ms 12576 KB Output is correct
102 Correct 64 ms 12580 KB Output is correct
103 Correct 81 ms 14116 KB Output is correct
104 Correct 63 ms 14108 KB Output is correct
105 Correct 71 ms 14020 KB Output is correct