oj.uz

Submission #574487

# Submission time Handle Problem Language Result Execution time Memory
574487 2022-06-08T15:39:08 Z SlavicG Saveit (IOI10_saveit) C++17
0 / 100
 948 ms 15480 KB 
    #include "bits/stdc++.h"
    #include "grader.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()
     
    vector<int> bfs(int start, vector<vector<int>>& adj) {
        int n = sz(adj);
        vector<int> dist(n, -1);
        dist[start] = 0;
        queue<int> q;
        q.push(start);
        while(!q.empty()) {
            int u = q.front();
            q.pop();
            for(int v: adj[u]) {
                if(dist[v] == -1) {
                    dist[v] = dist[u] + 1;
                    q.push(v);
                }
            }
        }
        return dist;
    }
    void dfs(int u, vector<bool>& vis, vector<vector<int>>& adj, vector<int>& par) {
        vis[u] = true;
        for(int v: adj[u]) {
            if(!vis[v]) {
                par[v] = u;
                dfs(v, vis, adj, par);
            }
        }
    }
     
    map<vector<int>, int> mp;
    int amogus = 0;
    void rec(vector<int> v) {
        if(sz(v) == 3) {
            if(mp.count(v)) return;
            mp[v] = amogus++;
        } else {
            for(int i = 0; i <= 2; ++i) {
                v.pb(i);
                rec(v);
                v.pop_back();
            }
        }
    }
    void encode(int n, int h, int m, int *v1, int *v2){
        vector<vector<int>> adj(n);
        for(int i = 0; i < m; ++i) {
            adj[v1[i]].pb(v2[i]);
            adj[v2[i]].pb(v1[i]);
        }
        vector<vector<int>> dist(n);
        forn(i, n) dist[i] = bfs(i, adj);
        for(int i = 0;i < h; ++i) {
            for(int j = 0; j < 10; ++j) {
                if(dist[0][i] & (1 << j)) encode_bit(1);
                else encode_bit(0);
            }
        }
        vector<bool> vis(n, false);
        vector<int> parent(n);
        iota(all(parent), 0);
     
        dfs(0, vis, adj, parent);
     
        for(int i = 1; i < n; ++i) {
            for(int j = 0; j < 10; ++j) {
                if(parent[i] & (1 << j)) encode_bit(1);
                else encode_bit(0);
            }
        }
        //dist[node][i] = dist[parent[node]][i] (0)
        //dist[node][i] = dist[parent[node]][i] - 1 (1)
        //dist[node][i] = dist[parent[node]][i] + 1 (2)
     
        rec({});
        vector<int> v;
        for(int j = 0; j < h; ++j) {
            for(int i = 1; i < n; ++i) {
                if(dist[i][j] == dist[parent[i]][j]) v.pb(0);
                else if(dist[i][j] == dist[parent[i]][j] - 1) v.pb(1);
                else v.pb(2);
            }
        }

        for(int i = 0; i + 2 < sz(v); i += 3) {
            for(int f = 0; f < 5; ++f) {
                if(mp[{v[i], v[i + 1], v[i + 2]}] & (1 << f)) {
                    encode_bit(1);
                } else encode_bit(0);
            }
        }

        if(sz(v) % 3 == 1) {
            for(int f = 0; f < 2; ++f) {
                if(v.back() & (1 << f)) encode_bit(1);
                else encode_bit(0);
            }
        } else if(sz(v) % 3 == 2) {
            for(int k = sz(v) - 2; k < sz(v); ++k) {
                for(int f = 0; f < 2; ++f) {
                    if(v[k] & (1 << f)) encode_bit(1);
                    else encode_bit(0);
                }
            }
        }
    }
     
    /*
    void solve() {  
     
    } 
         
    int32_t main() {
        ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
        int t = 1;
        //cin >> t;
        while(t--) {
            solve();
        }
    } 
     
    */
#include "bits/stdc++.h"
#include "grader.h"
#include "decoder.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()
 
const int N = 1000;
int dist[N][40], type[N][40];
 
vector<int> adj[N];
 
map<vector<int>, int> mp;
int amogus = 0;
map<int, vector<int>> Paiu;
 
void rec(vector<int> v) {
    if(sz(v) == 3) {
        if(mp.count(v)) return;
        mp[v] = amogus;
        Paiu[amogus] = v;
        ++amogus;
    } else {
        for(int i = 0; i <= 2; ++i) {
            v.pb(i);
            rec(v);
            v.pop_back();
        }
    }
}
 
void dfs(int u, int par, int h) {
    for(int v: adj[u]) {
        if(v == par) continue;
        for(int j = 0; j < h; ++j) {
            if(type[v][j] == 0) dist[v][j] = dist[u][j];
            else if(type[v][j] == 1) dist[v][j] = dist[u][j] - 1;
            else dist[v][j] = dist[u][j] + 1;
        }
        dfs(v, u, h);
    }
}
void decode(int n, int h) {
    for(int i = 0; i < h; ++i) {
        for(int j = 0; j < 10; ++j) {
            if(decode_bit()) dist[0][i] += (1 << j);
        }
    }
    for(int i = 1;i < n; ++i) {
        int node = 0;
        for(int j = 0; j < 10; ++j) {
            if(decode_bit()) node += (1 << j);
        }
        if(node != i) adj[node].pb(i);
    }
 
    rec({});
    vector<pair<int, int>> v;

    for(int j = 0; j < h; ++j) {
        for(int i = 1; i < n; ++i) {
            v.pb({i, j});
        }
    }

    for(int i = 0; i + 2 < sz(v); i += 3) {
        int number = 0;
        for(int f = 0; f < 5; ++f) {
            if(decode_bit()) number += (1 << f);
        }
        vector<int> f = Paiu[number];
        type[v[i].first][v[i].second] = f[0];
        type[v[i + 1].first][v[i + 1].second] = f[1];
        type[v[i + 2].first][v[i + 2].second] = f[2];
    }

    if(sz(v) % 3 == 1) {
        for(int f = 0; f < 2; ++f) {
            if(decode_bit()) type[v[sz(v) - 1].first][v[sz(v) - 1].second] += (1 << f);
        }
    } else if(sz(v) % 3 == 2) {
        for(int k = n - 2; k < n; ++k) {
            for(int f = 0; f < 2; ++f) {
                if(decode_bit()) type[v[k].first][v[k].second] += (1 << f);
            }
        }
    }

    dfs(0, -1, h);
    for(int i = 0; i < h; ++i) {
        for(int j = 0; j < n; ++j) {
            hops(i, j, dist[j][i]);
        }
    }
}
/*
void solve() {  
    
}   
     
int32_t main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--) {
        solve();
    }
}
*/

Subtask #1
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 15480 KB Output is partially correct - 70290 call(s) of encode_bit()
2 Correct 3 ms 4472 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 60 ms 9444 KB Output is correct - 63290 call(s) of encode_bit()
4 Incorrect 2 ms 4528 KB Output isn't correct
5 Correct 84 ms 9620 KB Output is correct - 63290 call(s) of encode_bit()
6 Correct 101 ms 10540 KB Output is partially correct - 70290 call(s) of encode_bit()
7 Correct 136 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
8 Correct 48 ms 9984 KB Output is correct - 67560 call(s) of encode_bit()
9 Correct 56 ms 10224 KB Output is partially correct - 70290 call(s) of encode_bit()
10 Correct 55 ms 10284 KB Output is partially correct - 70290 call(s) of encode_bit()
11 Correct 77 ms 10416 KB Output is partially correct - 70290 call(s) of encode_bit()
12 Correct 54 ms 10308 KB Output is partially correct - 70290 call(s) of encode_bit()
13 Correct 156 ms 11112 KB Output is partially correct - 70290 call(s) of encode_bit()
14 Correct 58 ms 10468 KB Output is partially correct - 70290 call(s) of encode_bit()
15 Correct 64 ms 10480 KB Output is partially correct - 70290 call(s) of encode_bit()
16 Correct 153 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
17 Correct 127 ms 10932 KB Output is partially correct - 70290 call(s) of encode_bit()
18 Correct 166 ms 11296 KB Output is partially correct - 70290 call(s) of encode_bit()
19 Correct 115 ms 10796 KB Output is partially correct - 70290 call(s) of encode_bit()
20 Correct 204 ms 11484 KB Output is partially correct - 70290 call(s) of encode_bit()
21 Correct 232 ms 11552 KB Output is partially correct - 70290 call(s) of encode_bit()
22 Correct 167 ms 11092 KB Output is partially correct - 70290 call(s) of encode_bit()
23 Correct 232 ms 11732 KB Output is partially correct - 70290 call(s) of encode_bit()

Subtask #2
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 15480 KB Output is partially correct - 70290 call(s) of encode_bit()
2 Correct 3 ms 4472 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 60 ms 9444 KB Output is correct - 63290 call(s) of encode_bit()
4 Incorrect 2 ms 4528 KB Output isn't correct
5 Correct 84 ms 9620 KB Output is correct - 63290 call(s) of encode_bit()
6 Correct 101 ms 10540 KB Output is partially correct - 70290 call(s) of encode_bit()
7 Correct 136 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
8 Correct 48 ms 9984 KB Output is correct - 67560 call(s) of encode_bit()
9 Correct 56 ms 10224 KB Output is partially correct - 70290 call(s) of encode_bit()
10 Correct 55 ms 10284 KB Output is partially correct - 70290 call(s) of encode_bit()
11 Correct 77 ms 10416 KB Output is partially correct - 70290 call(s) of encode_bit()
12 Correct 54 ms 10308 KB Output is partially correct - 70290 call(s) of encode_bit()
13 Correct 156 ms 11112 KB Output is partially correct - 70290 call(s) of encode_bit()
14 Correct 58 ms 10468 KB Output is partially correct - 70290 call(s) of encode_bit()
15 Correct 64 ms 10480 KB Output is partially correct - 70290 call(s) of encode_bit()
16 Correct 153 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
17 Correct 127 ms 10932 KB Output is partially correct - 70290 call(s) of encode_bit()
18 Correct 166 ms 11296 KB Output is partially correct - 70290 call(s) of encode_bit()
19 Correct 115 ms 10796 KB Output is partially correct - 70290 call(s) of encode_bit()
20 Correct 204 ms 11484 KB Output is partially correct - 70290 call(s) of encode_bit()
21 Correct 232 ms 11552 KB Output is partially correct - 70290 call(s) of encode_bit()
22 Correct 167 ms 11092 KB Output is partially correct - 70290 call(s) of encode_bit()
23 Correct 232 ms 11732 KB Output is partially correct - 70290 call(s) of encode_bit()

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 15480 KB Output is partially correct - 70290 call(s) of encode_bit()
2 Correct 3 ms 4472 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 60 ms 9444 KB Output is correct - 63290 call(s) of encode_bit()
4 Incorrect 2 ms 4528 KB Output isn't correct
5 Correct 84 ms 9620 KB Output is correct - 63290 call(s) of encode_bit()
6 Correct 101 ms 10540 KB Output is partially correct - 70290 call(s) of encode_bit()
7 Correct 136 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
8 Correct 48 ms 9984 KB Output is correct - 67560 call(s) of encode_bit()
9 Correct 56 ms 10224 KB Output is partially correct - 70290 call(s) of encode_bit()
10 Correct 55 ms 10284 KB Output is partially correct - 70290 call(s) of encode_bit()
11 Correct 77 ms 10416 KB Output is partially correct - 70290 call(s) of encode_bit()
12 Correct 54 ms 10308 KB Output is partially correct - 70290 call(s) of encode_bit()
13 Correct 156 ms 11112 KB Output is partially correct - 70290 call(s) of encode_bit()
14 Correct 58 ms 10468 KB Output is partially correct - 70290 call(s) of encode_bit()
15 Correct 64 ms 10480 KB Output is partially correct - 70290 call(s) of encode_bit()
16 Correct 153 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
17 Correct 127 ms 10932 KB Output is partially correct - 70290 call(s) of encode_bit()
18 Correct 166 ms 11296 KB Output is partially correct - 70290 call(s) of encode_bit()
19 Correct 115 ms 10796 KB Output is partially correct - 70290 call(s) of encode_bit()
20 Correct 204 ms 11484 KB Output is partially correct - 70290 call(s) of encode_bit()
21 Correct 232 ms 11552 KB Output is partially correct - 70290 call(s) of encode_bit()
22 Correct 167 ms 11092 KB Output is partially correct - 70290 call(s) of encode_bit()
23 Correct 232 ms 11732 KB Output is partially correct - 70290 call(s) of encode_bit()

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 948 ms 15480 KB Output is partially correct - 70290 call(s) of encode_bit()
2 Correct 3 ms 4472 KB Output is correct - 90 call(s) of encode_bit()
3 Correct 60 ms 9444 KB Output is correct - 63290 call(s) of encode_bit()
4 Incorrect 2 ms 4528 KB Output isn't correct
5 Correct 84 ms 9620 KB Output is correct - 63290 call(s) of encode_bit()
6 Correct 101 ms 10540 KB Output is partially correct - 70290 call(s) of encode_bit()
7 Correct 136 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
8 Correct 48 ms 9984 KB Output is correct - 67560 call(s) of encode_bit()
9 Correct 56 ms 10224 KB Output is partially correct - 70290 call(s) of encode_bit()
10 Correct 55 ms 10284 KB Output is partially correct - 70290 call(s) of encode_bit()
11 Correct 77 ms 10416 KB Output is partially correct - 70290 call(s) of encode_bit()
12 Correct 54 ms 10308 KB Output is partially correct - 70290 call(s) of encode_bit()
13 Correct 156 ms 11112 KB Output is partially correct - 70290 call(s) of encode_bit()
14 Correct 58 ms 10468 KB Output is partially correct - 70290 call(s) of encode_bit()
15 Correct 64 ms 10480 KB Output is partially correct - 70290 call(s) of encode_bit()
16 Correct 153 ms 10968 KB Output is partially correct - 70290 call(s) of encode_bit()
17 Correct 127 ms 10932 KB Output is partially correct - 70290 call(s) of encode_bit()
18 Correct 166 ms 11296 KB Output is partially correct - 70290 call(s) of encode_bit()
19 Correct 115 ms 10796 KB Output is partially correct - 70290 call(s) of encode_bit()
20 Correct 204 ms 11484 KB Output is partially correct - 70290 call(s) of encode_bit()
21 Correct 232 ms 11552 KB Output is partially correct - 70290 call(s) of encode_bit()
22 Correct 167 ms 11092 KB Output is partially correct - 70290 call(s) of encode_bit()
23 Correct 232 ms 11732 KB Output is partially correct - 70290 call(s) of encode_bit()