oj.uz

Submission #300673

# Submission time Handle Problem Language Result Execution time Memory
300673 2020-09-17T11:40:34 Z Odavey Connecting Supertrees (IOI20_supertrees) C++14
40 / 100
 287 ms 26488 KB 
//
// ~oisín~ C++ Template
//

#include                <bits/stdc++.h>
#include                "supertrees.h"
#define MX_N            1001
#define mp              make_pair
#define mod7            1000000007
#define modpi           314159
#define PI              3.141592653589793238
#define pb              push_back
#define FastIO          ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define All(a)          a.begin(),a.end()
#define fi              first
#define se              second
#define ll              long long int
#define ull             unsigned long long int

int kx[8]  =            {+2, +2, -2, -2, +1, +1, -1, -1};
int ky[8]  =            {+1, -1, +1, -1, +2, -2, +2, -2};
int d9x[9] =            {+1, +1, +1, +0, +0, +0, -1, -1, -1};
int d9y[9] =            {+1, +0, -1, +1, +0, -1, +1, +0, -1};
int dx4[4] =            {+0, +0, +1, -1};
int dy4[4] =            {+1, -1, +0, +0};

ll gcd(ull a, ull b){
    return (a==0)?b:gcd(b%a,a);
}

ll lcm(ull a, ull b){
    return a*(b/gcd(a,b));
}

const long long INF = 1e18;

using namespace std;

int n;

struct link{
    link* par;
    int id;
    int m_id;
};

link* find_set(link* at){
    if(at == at->par){
        return at;
    }else{
        return at->par = find_set(at->par);
    }
}

void union_set(link* A, link* B){
    link* a = find_set(A);
    link* b = find_set(B);
    if(a == b){
        return;
    }
    a->par = b;
    return;
}

vector<int> adj[MX_N];
vector<int> familes[MX_N];

link* G[MX_N];

int construct(vector<vector<int> > p){
    n = p.size();
    auto res = p;
    for(auto& v : res){
        for(int& x : v){
            x = 0;
        }
    }
    for(int i=0;i<n;++i){
        G[i] = new link;
        G[i]->id = i;
        G[i]->par = G[i];
    }
    for(int i=0;i<n;++i){
        for(int j=i+1;j<n;++j){
            if(p[i][j] == 1 || p[i][j] == 2){
                adj[i].pb(j);
                adj[j].pb(i);
                union_set(G[i], G[j]);
            }
        }
    }
    for(int i=0;i<n;++i){
        for(int j=i+1;j<n;++j){
            if(p[i][j] == 0){
                if(find_set(G[i]) == find_set(G[j])){
                    return 0;
                }
            }
        }
    }
    for(int i=0;i<n;++i){
        G[i]->m_id = familes[find_set(G[i])->id].size();
        familes[find_set(G[i])->id].pb(i);
    }
    for(int i=0;i<n;++i){
        G[i]->par = G[i];
    }
    for(int f=0;f<n;++f){
        if(familes[f].size() <= 1){
            continue;
        }
        vector<int>& group = familes[f];
        int m = group.size();
        for(int i=0;i<m;++i){
            for(int to : adj[group[i]]){
                if(p[group[i]][to] == 1){
                    union_set(G[group[i]], G[to]);
                }
            }
        }
        vector<int> lots[m];
        for(int i=0;i<m;++i){
            lots[find_set(G[group[i]])->m_id].pb(group[i]);
        }
        vector<int> circle;
        vector<vector<int> > chains;
        for(int i=0;i<m;++i){
            if(lots[i].size() == 0){
                continue;
            }else if(lots[i].size() == 1){
                circle.pb(lots[i][0]);
            }else{
                chains.pb(lots[i]);
            }
        }
        for(auto& chain : chains){
            for(int i=1;i<(int)chain.size();++i){
                res[chain[i]][chain[i-1]] = 1;
                res[chain[i-1]][chain[i]] = 1;
            }
        }
        for(int i=1;i<(int)chains.size();++i){
            res[chains[i][0]][chains[i-1][0]] = 1;
            res[chains[i-1][0]][chains[i][0]] = 1;
        }
        for(int i=1;i<(int)circle.size();++i){
            res[circle[i]][circle[i-1]] = 1;
            res[circle[i-1]][circle[i]] = 1;
        }
        if(circle.size() == 0){
            continue;
        }else if(chains.size() == 0){
            if(circle.size() == 2){
                return 0;
            }
            res[circle[0]][circle[circle.size()-1]] = 1;
            res[circle[circle.size()-1]][circle[0]] = 1;
        }else{
            res[circle[0]][chains[0][0]] = 1;
            res[chains[0][0]][circle[0]] = 1;
            res[circle[circle.size()-1]][chains[chains.size()-1][0]] = 1;
            res[chains[chains.size()-1][0]][circle[circle.size()-1]] = 1;
        }
    }
    build(res);
    return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1536 KB Output is correct
7 Correct 267 ms 26360 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1536 KB Output is correct
7 Correct 267 ms 26360 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 253 ms 22168 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 126 ms 14968 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 64 ms 6008 KB Output is correct
21 Correct 250 ms 22684 KB Output is correct
22 Correct 246 ms 22264 KB Output is correct
23 Correct 268 ms 24184 KB Output is correct
24 Correct 245 ms 22264 KB Output is correct
25 Correct 114 ms 12920 KB Output is correct
26 Correct 117 ms 12408 KB Output is correct
27 Correct 274 ms 25336 KB Output is correct
28 Correct 251 ms 22264 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 10 ms 1280 KB Output is correct
9 Correct 246 ms 22264 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 11 ms 1536 KB Output is correct
13 Correct 287 ms 26488 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 125 ms 15096 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 65 ms 5880 KB Output is correct
22 Correct 251 ms 22776 KB Output is correct
23 Correct 253 ms 22292 KB Output is correct
24 Correct 263 ms 25336 KB Output is correct
25 Correct 112 ms 12280 KB Output is correct
26 Correct 114 ms 12808 KB Output is correct
27 Correct 246 ms 22264 KB Output is correct
28 Correct 267 ms 24184 KB Output is correct
29 Correct 117 ms 12280 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 67 ms 5880 KB Output is correct
5 Correct 255 ms 22836 KB Output is correct
6 Correct 251 ms 22392 KB Output is correct
7 Correct 270 ms 24312 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 64 ms 5880 KB Output is correct
10 Correct 255 ms 22904 KB Output is correct
11 Correct 261 ms 22404 KB Output is correct
12 Correct 266 ms 25336 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 Incorrect 67 ms 5880 KB Too few ways to get from 0 to 24, should be 2 found 1
17 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1536 KB Output is correct
7 Correct 267 ms 26360 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 253 ms 22168 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 126 ms 14968 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 64 ms 6008 KB Output is correct
21 Correct 250 ms 22684 KB Output is correct
22 Correct 246 ms 22264 KB Output is correct
23 Correct 268 ms 24184 KB Output is correct
24 Correct 245 ms 22264 KB Output is correct
25 Correct 114 ms 12920 KB Output is correct
26 Correct 117 ms 12408 KB Output is correct
27 Correct 274 ms 25336 KB Output is correct
28 Correct 251 ms 22264 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 246 ms 22264 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 11 ms 1536 KB Output is correct
41 Correct 287 ms 26488 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 6 ms 1024 KB Output is correct
45 Correct 125 ms 15096 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 65 ms 5880 KB Output is correct
50 Correct 251 ms 22776 KB Output is correct
51 Correct 253 ms 22292 KB Output is correct
52 Correct 263 ms 25336 KB Output is correct
53 Correct 112 ms 12280 KB Output is correct
54 Correct 114 ms 12808 KB Output is correct
55 Correct 246 ms 22264 KB Output is correct
56 Correct 267 ms 24184 KB Output is correct
57 Correct 117 ms 12280 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 6 ms 1024 KB Output is correct
61 Correct 129 ms 16760 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 Incorrect 64 ms 5880 KB Too few ways to get from 46 to 92, should be 2 found 1
66 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 12 ms 1536 KB Output is correct
7 Correct 267 ms 26360 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 253 ms 22168 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 6 ms 1024 KB Output is correct
17 Correct 126 ms 14968 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 64 ms 6008 KB Output is correct
21 Correct 250 ms 22684 KB Output is correct
22 Correct 246 ms 22264 KB Output is correct
23 Correct 268 ms 24184 KB Output is correct
24 Correct 245 ms 22264 KB Output is correct
25 Correct 114 ms 12920 KB Output is correct
26 Correct 117 ms 12408 KB Output is correct
27 Correct 274 ms 25336 KB Output is correct
28 Correct 251 ms 22264 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 246 ms 22264 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 11 ms 1536 KB Output is correct
41 Correct 287 ms 26488 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 6 ms 1024 KB Output is correct
45 Correct 125 ms 15096 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 65 ms 5880 KB Output is correct
50 Correct 251 ms 22776 KB Output is correct
51 Correct 253 ms 22292 KB Output is correct
52 Correct 263 ms 25336 KB Output is correct
53 Correct 112 ms 12280 KB Output is correct
54 Correct 114 ms 12808 KB Output is correct
55 Correct 246 ms 22264 KB Output is correct
56 Correct 267 ms 24184 KB Output is correct
57 Correct 117 ms 12280 KB Output is correct
58 Correct 1 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 67 ms 5880 KB Output is correct
62 Correct 255 ms 22836 KB Output is correct
63 Correct 251 ms 22392 KB Output is correct
64 Correct 270 ms 24312 KB Output is correct
65 Correct 1 ms 384 KB Output is correct
66 Correct 64 ms 5880 KB Output is correct
67 Correct 255 ms 22904 KB Output is correct
68 Correct 261 ms 22404 KB Output is correct
69 Correct 266 ms 25336 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 Incorrect 67 ms 5880 KB Too few ways to get from 0 to 24, should be 2 found 1
74 Halted 0 ms 0 KB -