Cod sursa(job #2301137)

Utilizator LucianTLucian Trepteanu LucianT Data 12 decembrie 2018 18:16:08
Problema Sortare prin comparare Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.16 kb
#include <fstream>
#include <climits>
using namespace std;

const int maxN=5e5+1;

int n;

int v[maxN];
int aint[4*maxN]; //nu stric memoria pe structuri

void build(int nod,int st,int dr){
    if(st==dr){
        aint[nod]=st;
        return;
    }

    int mij=(st+dr)/2;

    build(2*nod,st,mij);
    build(2*nod+1,mij+1,dr);

    if(v[aint[2*nod]]<v[aint[2*nod+1]]){
        aint[nod]=aint[2*nod];
    } else {
        aint[nod]=aint[2*nod+1];
    }
}

void update(int nod,int st,int dr,int pos){
    if(st==dr){
        aint[nod]=pos;
        return;
    }

    int mij=(st+dr)/2;

    if(pos<=mij){
        update(2*nod,st,mij,pos);
    } else {
        update(2*nod+1,mij+1,dr,pos);
    }

    if(v[aint[2*nod]]<v[aint[2*nod+1]]){
        aint[nod]=aint[2*nod];
    } else {
        aint[nod]=aint[2*nod+1];
    }
}

int query(){
    return aint[1];
}

int main(){
    ifstream cin("algsort.in");
    ofstream cout("algsort.out");

    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>v[i];
    }

    build(1,1,n);

    for(int i=1;i<=n;i++){
        int where=query();
        cout<<v[where]<<" ";

        v[where]=INT_MAX;
        update(1,1,n,where);
    }

    return 0;
}