Submission #1086738

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086738		asli_bg	Tropical Garden (IOI11_garden)	C++11	69 / 100	5038 ms	142160 KiB

garden

#include<bits/stdc++.h>
using namespace std;

#include "garden.h"
#include "gardenlib.h"

//#define int long long
 
#define fi first
#define se second
#define all(x) x.begin(),x.end()
#define pb push_back
 
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<bool> vb;
 
#define sp <<' '<<
#define FOR(i,a) for(int i=0;i<(a);i++)
#define FORE(i,a,b) for(int i=(a);i<(b);i++)
 
#define cont(x) {for(auto el:x) cout<<el<<' ';cout<<endl;}
#define contp(x) {for(auto el:x) cout<<el.fi<<'-'<<el.se<<' ';cout<<endl;}
#define DEBUG(X) { cout << #X << " = " << (X) << endl; }
 
#define carp(x,y) (((x)%mod)*((y)%mod))%mod
#define topla(x,y) (((x)%mod)+((y)%mod))%mod
 
const int MAXN=2e5+4;
const int MAXK=31;
 
#define mid (l+r)/2
#define endl '\n'

int n,m,p;
vii adj[MAXN];
int suc[MAXN][MAXK][3];
int cik[MAXN][MAXK][3];

void calc(){
    FORE(k,1,MAXK){
        FORE(nd,1,n+1){
            if(suc[nd][k-1][1]!=-1){ //1.routeu izleyerek k-1 adım gidiliyorsa
                int bir=suc[nd][k-1][1];
                suc[nd][k][1]=suc[bir][k-1][cik[nd][k-1][1]];//min edge i kullan da gel
                cik[nd][k][1]=cik[bir][k-1][cik[nd][k-1][1]];
            }

            
            if(suc[nd][k-1][2]!=-1){
                int bir=suc[nd][k-1][2];
                suc[nd][k][2]=suc[bir][k-1][cik[nd][k-1][2]];//min edge i kullan da gel
                cik[nd][k][2]=cik[bir][k-1][cik[nd][k-1][2]];
            }
        }
    }
}

void count_routes(int N, int M, int P, int R[][2], int Q, int G[])
{
    n=N;
    m=M;
    p=P;
    p++;
    memset(suc, -1, sizeof suc);
    FORE(i,1,m+1){
        int from=R[i-1][0];
        int to=R[i-1][1];
        from++;to++;
        adj[from].pb({i-1,to});
        adj[to].pb({i-1,from});
    }

    FORE(i,1,n+1){
        sort(all(adj[i]));
        while(adj[i].size()>2) adj[i].pop_back();
        
        if(adj[i].size()>=1){
            int kom=adj[i][0].se;
            //1.routu izle
            suc[i][0][1]=kom;
            if(adj[kom][0].se==i and adj[kom].size()>1){
                cik[i][0][1]=2;
                //successor i'nin hangi nodeundan devam edicem
            }
            else{
                cik[i][0][1]=1;
            }
        }

        if(adj[i].size()>=2){ //2.bir route varsa
            //2.routu izle
            int kom=adj[i][1].se;
            suc[i][0][2]=kom;
            if(adj[kom][0].se==i and adj[kom].size()>1){
                cik[i][0][2]=2;
            }
            else{
                cik[i][0][2]=1;
            }
        }

    }

    //calculate successor of each node
    calc();

    int q=Q;
    vi qq, cc;
    FOR(i,q){
        int deg=G[i];
        qq.pb(deg);
        cc.pb(deg);
    }

    sort(all(qq));

    vi cur(n+1);
    map<int,int> cev;
    FORE(i,1,n+1) cur[i]=i;

    int once=0;
    vi rt(n+1,1);
    for(auto ell:qq){ 
        int el=ell;
        el-=once;
        if(el==0) continue;
        FOR(i,MAXK){
            if(el&(1<<i)){
                FORE(nd,1,n+1){
                    if(cur[nd]==-1) continue;
                    int node=cur[nd];
                    cur[nd]=suc[node][i][rt[nd]];
                    rt[nd]=cik[node][i][rt[nd]];
                }
            }

            /*FORE(nd,1,n+1){
                DEBUG(nd);
                DEBUG(cur[nd]);
            }
            cout<<endl;*/
        }

        FORE(nd,1,n+1){
            if(cur[nd]==p) cev[ell]++;
        }

        once+=el;
    }

    for(auto el:cc){
        answer(cev[el]);
    }
}

• Subtask 1: 49 / 49
• Subtask 2: 20 / 20
• Subtask 3: 0 / 31