Submission #700187

#	Time	Username	Problem	Language	Result	Execution time	Memory
700187		urosk	Airline Route Map (JOI18_airline)	C++14	100 / 100	776 ms	58288 KiB

Alice

#include "Alicelib.h"
#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include "bits/stdc++.h"
//#include <ext/pb_ds/tree_policy.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll int
#define llinf 100000000000000000LL // 10^17
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) (ll)(a.size())
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define cer(a) {cerr<<#a<<": ";for(ll x_ : a) cerr<<x_<< " ";cerr<<endl;}

#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);

using namespace std;
#define maxn 2020
void Alice(ll N,ll M,ll A[],ll B[] ){
    ll n = N,m = M;
    ll d = 12;
    ll v = n+d,u = m;
    vector<pll> a;
    vector<ll> want(maxn,0);
    vector<ll> deg(maxn,0);
    vector<vector<bool> > ima(maxn,vector<bool>(maxn,0));
    for(ll i = 0;i<m;i++) a.pb({A[i],B[i]});
    for(ll i = 0;i<v-2;i++) a.pb({i,v-1});
    for(ll i = n;i<v-2;i++) a.pb({i,v-2});
    set<pll> s;
    for(ll i = n;i<v-2;i++) want[i] = i-n;
    for(ll i = 0;i<v;i++) ima[i][i] = 1;
    for(ll i = n;i<v-3;i++) a.pb({i,i+1});
    //ceri(deg,n,v-3);
    for(ll i = 0;i<n;i++){
        for(ll j = 0;j<d-2;j++){
            if((1<<j)&i) a.pb({i,n+j});
        }
    }
    u = sz(a);
    InitG(v,u);
    //dbg(sz(a));
    //for(pll p : a) cerr<<p.fi<< " "<<p.sc<<endl;
    for(ll i = 0;i<v;i++) deg[i] = 0;
    for(ll i = 0;i<u;i++) deg[a[i].fi]++,deg[a[i].sc]++;
    //ceri(deg,0,v-1);
    for(ll i = 0;i<u;i++) MakeG(i,a[i].fi,a[i].sc);
}
/**
4 3
0 1
0 2
0 3

5 7
0 1
0 2
1 3
1 4
3 4
2 3
2 4

11 10
0 1
2 1
3 0
4 2
5 3
6 1
7 4
8 4
9 0
10 1
**/

Bob

#include "Boblib.h"
#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include "bits/stdc++.h"
//#include <ext/pb_ds/tree_policy.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll int
#define llinf 100000000000000000LL // 10^17
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) (ll)(a.size())
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define cer(a) {cerr<<#a<<": ";for(ll x_ : a) cerr<<x_<< " ";cerr<<endl;}

#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);

using namespace std;
#define maxn 2020
void Bob(ll V,ll U,ll C[],ll D[]){
    ll n = V,m = U;
    vector<ll> ans(maxn,0);
    vector<ll> deg(maxn,0);
    vector<ll> sdeg(maxn,0);
    vector<pll> e(maxn*maxn);
    vector<bool> spec(maxn,0);
    vector<vector<ll> > g(maxn);
    vector<vector<bool> > ok(maxn,vector<bool>(maxn,0));
    for(ll i = 0;i<m;i++) e[i] = {C[i],D[i]};
    for(ll i = 0;i<m;i++){
        ll x = e[i].fi,y = e[i].sc;
        deg[x]++;
        deg[y]++;
        ok[x][y] = ok[y][x] = 1;
        g[x].pb(y);
        g[y].pb(x);
    }
    for(ll i = 0;i<n;i++) ok[i][i] = 1;
    ll u = 0;
    for(ll i = 0;i<n;i++) if(deg[i]>deg[u]) u = i;
    ll v = -1;
    for(ll i = 0;i<n;i++) if(!ok[u][i]){
        if(v==-1) v = i;
        else if(deg[i]>deg[v]) v = i;
    }
    vector<ll> w;
    for(ll x : g[v]){
        w.pb(x);
        spec[x] = 1;
    }
    for(ll x : w){
        for(ll y : g[x]){
            if(spec[y]) sdeg[x]++;
        }
    }
    ll poc = w[0];
    for(ll x : w) if(sdeg[x]<sdeg[poc]||(sdeg[x]==sdeg[poc]&&deg[x]>deg[poc])) poc = x;
    vector<ll> W;
    vector<bool> vis(maxn,0);
    function<void(ll)> dfs = [&](ll u){
        vis[u] = 1;
        W.pb(u);
        for(ll s : g[u]){
            if(spec[s]&&!vis[s]) dfs(s);
        }
    };
    dfs(poc);
    //dbg(poc);
    //dbg(deg[poc]);
    w.clear();
    for(ll x : W) w.pb(x);
    spec[u] = spec[v] = 1;
    for(ll cnt = 0;cnt<10;cnt++){
        ll x = w[cnt];
        for(ll y : g[x]){
            if(!spec[y]){
                ans[y]+=(1<<cnt);
            }
        }
    }
    ll gr = 0;
    for(ll i = 0;i<m;i++){
        ll x = e[i].fi,y = e[i].sc;
        if(spec[x]||spec[y]) continue;
        gr++;
    }
    InitMap(n-12,gr);
    for(ll i = 0;i<m;i++){
        ll x = e[i].fi,y = e[i].sc;
        if(spec[x]||spec[y]) continue;
        x = ans[x],y = ans[y];
        MakeMap(x,y);
    }
}
/**
4 3
0 1
0 2
0 3
**/

• Subtask 1: 22 / 22
• Subtask 2: 15 / 15
• Subtask 3: 63 / 63