제출 #172689

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
172689		balbit	항공 노선도 (JOI18_airline)	C++14	37 / 100	967 ms	30552 KiB

Alice

#include "Alicelib.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define ull unsigned ll
#define f first
#define s second
#define FOR(i,a,b) for (int i=(a); i<(b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) for (int i=(n-1); i>=0; --i)
#define REP1(i,n) FOR(i,1,n+1)
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define SQ(x) (x)*(x)
#define MN(a,b) a = min(a,(__typeof__(a))(b))
#define MX(a,b) a = max(a,(__typeof__(a))(b))
#define pb push_back
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#ifdef BALBIT
#define IOS()
#define bug(...) fprintf(stdout,"#%d (%s) = ",__LINE__,#__VA_ARGS__),_do(__VA_ARGS__),fflush(stdout);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y){cerr<<x<<", ";_do(y...);}
#else
#define IOS() ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'
#define bug(...)
#endif

const int iinf = 1<<29;
const ll inf = 1ll<<60;
const ll mod = 1e9+7;


void GG(){cout<<"-1\n"; exit(0);}

ll mpow(ll a, ll n, ll mo = mod){ // a^n % mod
    ll re=1;
    while (n>0){
        if (n&1) re = re*a %mo;
        a = a*a %mo;
        n>>=1;
    }
    return re;
}

ll inv (ll b, ll mo = mod){
    if (b==1) return b;
    return (mo-mo/b) * inv(mo%b) % mo;
}

const int maxn = 1e5+105;

void Alice( int N, int M, int A[], int B[] ){
    vector<pii> edges;
    int marker = N;
    int dummy = N+1;
	REP(i,M) {
        edges.pb({A[i],B[i]});
	}
	REP(i,N) {
        edges.pb({marker,i});
	}
	edges.pb({marker, dummy});
	REP(i,10) {
        REP(j,N) {
            if ((j+1)&(1<<i)) {
                edges.pb({j,dummy+1+i});
//                bug(j, dummy+1+i);
            }
        }
	}
	REP(i,9) edges.pb({dummy+1+i, dummy+1+i+1});
	edges.pb({dummy+8, dummy+10});
	InitG(N+12, edges.size());
	int tmp = 0;
	for (pii & ed: edges){
//        cout<<ed.f<<" -> "<<ed.s<<endl;
        MakeG(tmp++, ed.f, ed.s);
	}
}

Bob

#include "Boblib.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define ull unsigned ll
#define f first
#define s second
#define FOR(i,a,b) for (int i=(a); i<(b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) for (int i=(n-1); i>=0; --i)
#define REP1(i,n) FOR(i,1,n+1)
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define SQ(x) (x)*(x)
#define MN(a,b) a = min(a,(__typeof__(a))(b))
#define MX(a,b) a = max(a,(__typeof__(a))(b))
#define pb push_back
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#ifdef BALBIT
#define IOS()
#define bug(...) fprintf(stderr,"#%d (%s) = ",__LINE__,#__VA_ARGS__),_do(__VA_ARGS__);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y){cerr<<x<<", ";_do(y...);}
#else
#define IOS() ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'
#define bug(...)
#endif

const int iinf = 1<<29;
const ll inf = 1ll<<60;
const ll mod = 1e9+7;



const int maxn = 1e3+100;
vector<int> g[maxn];
bool node[maxn];
bool spe[maxn];
int odeg[maxn];// Degree for special nodes, to special nodes
int id[maxn];

#define debug(x)

void ass(bool x) {
    if (!x) {
        InitMap(-1,-1); exit(0);
    }
}

void Bob( int V, int U, int C[], int D[] ){
    int marker = -1;
    int dummy = -1;
//    cout<<" ====== Bob time ======= "<<endl;
    REP(i,U) {
//        cout<<C[i]<<" - "<<D[i]<<endl;
        g[C[i]].pb(D[i]); g[D[i]].pb(C[i]);
    }
    REP(i,V) {
        if (SZ(g[i])==1) {
            ass(dummy == -1);
            dummy = i;
        }
    }
    debug(dummy);
    ass(dummy!=-1);
    marker = g[dummy][0];
    for (int x : g[marker]) {
        if (x!=dummy) node[x] = 1;
    }
    vector<int> ten; // The ten special nodes
    REP(i,V) {
        if (i!=marker && i!=dummy && !node[i]) spe[i] = 1;
    }
    REP(i,V) {
        if (spe[i]) {
            for (int u : g[i]) {
                odeg[i] += spe[u];
            }
        }
    }
    int zero = -1;
    REP(i,V) {
        if (spe[i]) {
            if (odeg[i] == 1) zero = i;
        }
    }
    ass(zero!=-1);
    ten.pb(zero);
    REP(i,9) {
        spe[zero] = 0;
        for (int u : g[zero]) {
            if (spe[u]) {
                zero = u; break;
            }
        }
        ten.pb(zero);
    }
//    cout<<"Things in ten: "<<endl;
//    REP(i,10) {
//        debug(ten[i]);
//    }
    if (SZ(ten)!=10) MakeMap(-1,-1);
    REP(i, SZ(ten)) {
        for (int u : g[ten[i]]) if (node[u]) id[u] += (1<<i);
    }
    REP(i, V) {
        if (node[i]) id[i]--;
    }
    vector<pii> edges;
    REP(i, V) {
        if (node[i]) {
            for (int u: g[i]) {
                if (node[u]) if (id[i]<id[u]) edges.pb({id[i], id[u]});
            }
        }
    }
    bug(SZ(edges));
//    cout<<SZ(edges)<<endl;
//    for (pii & ed: edges){
//        cout<<ed.f<<' '<<ed.s<<endl;
//    }
	InitMap( V-12, SZ(edges) );
	for (pii & ed: edges){
        MakeMap(ed.f, ed.s);
	}
}

/*
4 3
0 1
0 2
0 3
*/

• Subtask 1: 22 / 22
• Subtask 2: 15 / 15
• Subtask 3: 0 / 63