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답안 #305777

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
305777 2020-09-24T00:53:14 Z Dormi 슈퍼트리 잇기 (IOI20_supertrees) C++14
100 / 100
 286 ms 26232 KB 
#include "bits/stdc++.h"
#include "supertrees.h"
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
int sz(const T &a){return int(a.size());}
const int MAXN=1e3+1;
bool gone[MAXN];
int pathnum[MAXN][MAXN];
int n;
vector<vector<int>> comps;
void dfs(int loc){
    comps.back().push_back(loc);
    gone[loc]=true;
    for(int i=0;i<n;i++){
        if(pathnum[loc][i]&&!gone[i]){
            dfs(i);
        }
    }
}
vector<vector<vector<int>>> comps2;
void dfs2(int loc){
    comps2.back().back().push_back(loc);
    gone[loc]=true;
    for(int i=0;i<n;i++){
        if(pathnum[loc][i]==1&&!gone[i]){
            dfs2(i);
        }
    }
}

int construct(vector<vector<int>> p){
    n=sz(p);
    for(int i=0;i<n;i++)for(int j=0;j<n;j++)pathnum[i][j]=p[i][j];
    for(int i=0;i<n;i++){
        if(!gone[i]){
            comps.push_back({});
            dfs(i);
        }
    }
    for(auto x:comps){
        for(int i=0;i<sz(x);i++)for(int j=i+1;j<sz(x);j++){
            if(!pathnum[x[i]][x[j]])return 0;
        }
    }
    fill(gone,gone+n,false);
    for(auto x:comps){
        comps2.push_back({});
        for(auto y:x){
            if(!gone[y]){
                comps2.back().push_back({});
                dfs2(y);
            }
        }
    }
    for(auto y:comps2){
        for(auto x:y){
            for(int i=0;i<sz(x);i++)for(int j=i+1;j<sz(x);j++){
                if(pathnum[x[i]][x[j]]!=1)return 0;
            }
        }
        for(int i=0;i<sz(y);i++){
            for(int j=i+1;j<sz(y);j++){
                for(auto x:y[i]){
                    for(auto z:y[j]){
                        if(pathnum[x][z]!=2)return 0;
                    }
                }
            }
        }
    }
    vector<vector<int>> adj(n,vector<int>(n,0));
    auto addedge=[&](int l, int r){
        adj[l][r]=1,adj[r][l]=1;
    };
    for(auto x:comps2){
        if(sz(x)==2)return 0;
        for(int i=0;i<sz(x);i++){
            if(sz(x)>1)addedge(x[i].back(),x[(i+1)%sz(x)].back());
            for(int j=1;j<sz(x[i]);j++){
                addedge(x[i][j-1],x[i][j]);
            }
        }
    }
    build(adj);
    return 1;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 2048 KB Output is correct
7 Correct 246 ms 26120 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 2048 KB Output is correct
7 Correct 246 ms 26120 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 2048 KB Output is correct
13 Correct 241 ms 26104 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 112 ms 12128 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 62 ms 7800 KB Output is correct
21 Correct 250 ms 26104 KB Output is correct
22 Correct 241 ms 26072 KB Output is correct
23 Correct 252 ms 25976 KB Output is correct
24 Correct 244 ms 26232 KB Output is correct
25 Correct 102 ms 12152 KB Output is correct
26 Correct 100 ms 12152 KB Output is correct
27 Correct 251 ms 26104 KB Output is correct
28 Correct 286 ms 26104 KB Output is correct

Subtask #3
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 14 ms 2048 KB Output is correct
9 Correct 248 ms 26104 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 2048 KB Output is correct
13 Correct 248 ms 26208 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 6 ms 1408 KB Output is correct
17 Correct 114 ms 12156 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 62 ms 7800 KB Output is correct
22 Correct 243 ms 26104 KB Output is correct
23 Correct 243 ms 26104 KB Output is correct
24 Correct 250 ms 26104 KB Output is correct
25 Correct 126 ms 16248 KB Output is correct
26 Correct 108 ms 12152 KB Output is correct
27 Correct 240 ms 26104 KB Output is correct
28 Correct 271 ms 26104 KB Output is correct
29 Correct 103 ms 16248 KB Output is correct

Subtask #4
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 61 ms 7800 KB Output is correct
5 Correct 246 ms 26232 KB Output is correct
6 Correct 240 ms 26104 KB Output is correct
7 Correct 255 ms 25976 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 61 ms 7800 KB Output is correct
10 Correct 244 ms 26104 KB Output is correct
11 Correct 245 ms 26104 KB Output is correct
12 Correct 258 ms 26104 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 61 ms 7800 KB Output is correct
17 Correct 242 ms 26104 KB Output is correct
18 Correct 245 ms 26060 KB Output is correct
19 Correct 243 ms 26108 KB Output is correct
20 Correct 240 ms 26104 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 2048 KB Output is correct
7 Correct 246 ms 26120 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 2048 KB Output is correct
13 Correct 241 ms 26104 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 112 ms 12128 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 62 ms 7800 KB Output is correct
21 Correct 250 ms 26104 KB Output is correct
22 Correct 241 ms 26072 KB Output is correct
23 Correct 252 ms 25976 KB Output is correct
24 Correct 244 ms 26232 KB Output is correct
25 Correct 102 ms 12152 KB Output is correct
26 Correct 100 ms 12152 KB Output is correct
27 Correct 251 ms 26104 KB Output is correct
28 Correct 286 ms 26104 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 14 ms 2048 KB Output is correct
37 Correct 248 ms 26104 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 2048 KB Output is correct
41 Correct 248 ms 26208 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 6 ms 1408 KB Output is correct
45 Correct 114 ms 12156 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 62 ms 7800 KB Output is correct
50 Correct 243 ms 26104 KB Output is correct
51 Correct 243 ms 26104 KB Output is correct
52 Correct 250 ms 26104 KB Output is correct
53 Correct 126 ms 16248 KB Output is correct
54 Correct 108 ms 12152 KB Output is correct
55 Correct 240 ms 26104 KB Output is correct
56 Correct 271 ms 26104 KB Output is correct
57 Correct 103 ms 16248 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 5 ms 1408 KB Output is correct
61 Correct 111 ms 12152 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 61 ms 7800 KB Output is correct
66 Correct 103 ms 12152 KB Output is correct
67 Correct 103 ms 12152 KB Output is correct
68 Correct 104 ms 12152 KB Output is correct
69 Correct 104 ms 16248 KB Output is correct

Subtask #6
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 2048 KB Output is correct
7 Correct 246 ms 26120 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 11 ms 2048 KB Output is correct
13 Correct 241 ms 26104 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 1408 KB Output is correct
17 Correct 112 ms 12128 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 62 ms 7800 KB Output is correct
21 Correct 250 ms 26104 KB Output is correct
22 Correct 241 ms 26072 KB Output is correct
23 Correct 252 ms 25976 KB Output is correct
24 Correct 244 ms 26232 KB Output is correct
25 Correct 102 ms 12152 KB Output is correct
26 Correct 100 ms 12152 KB Output is correct
27 Correct 251 ms 26104 KB Output is correct
28 Correct 286 ms 26104 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 14 ms 2048 KB Output is correct
37 Correct 248 ms 26104 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 11 ms 2048 KB Output is correct
41 Correct 248 ms 26208 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 512 KB Output is correct
44 Correct 6 ms 1408 KB Output is correct
45 Correct 114 ms 12156 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 0 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 62 ms 7800 KB Output is correct
50 Correct 243 ms 26104 KB Output is correct
51 Correct 243 ms 26104 KB Output is correct
52 Correct 250 ms 26104 KB Output is correct
53 Correct 126 ms 16248 KB Output is correct
54 Correct 108 ms 12152 KB Output is correct
55 Correct 240 ms 26104 KB Output is correct
56 Correct 271 ms 26104 KB Output is correct
57 Correct 103 ms 16248 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 61 ms 7800 KB Output is correct
62 Correct 246 ms 26232 KB Output is correct
63 Correct 240 ms 26104 KB Output is correct
64 Correct 255 ms 25976 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 61 ms 7800 KB Output is correct
67 Correct 244 ms 26104 KB Output is correct
68 Correct 245 ms 26104 KB Output is correct
69 Correct 258 ms 26104 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 1 ms 512 KB Output is correct
73 Correct 61 ms 7800 KB Output is correct
74 Correct 242 ms 26104 KB Output is correct
75 Correct 245 ms 26060 KB Output is correct
76 Correct 243 ms 26108 KB Output is correct
77 Correct 240 ms 26104 KB Output is correct
78 Correct 1 ms 384 KB Output is correct
79 Correct 1 ms 384 KB Output is correct
80 Correct 5 ms 1408 KB Output is correct
81 Correct 111 ms 12152 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 61 ms 7800 KB Output is correct
86 Correct 103 ms 12152 KB Output is correct
87 Correct 103 ms 12152 KB Output is correct
88 Correct 104 ms 12152 KB Output is correct
89 Correct 104 ms 16248 KB Output is correct
90 Correct 0 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 5 ms 1408 KB Output is correct
93 Correct 111 ms 12152 KB Output is correct
94 Correct 1 ms 384 KB Output is correct
95 Correct 0 ms 384 KB Output is correct
96 Correct 0 ms 384 KB Output is correct
97 Correct 26 ms 4216 KB Output is correct
98 Correct 106 ms 12152 KB Output is correct
99 Correct 104 ms 12152 KB Output is correct
100 Correct 102 ms 12152 KB Output is correct
101 Correct 102 ms 12280 KB Output is correct
102 Correct 107 ms 12280 KB Output is correct
103 Correct 106 ms 12248 KB Output is correct
104 Correct 115 ms 12152 KB Output is correct
105 Correct 118 ms 12152 KB Output is correct