Cod sursa(job #1339414)

Utilizator MacWonkMihai Alexandru Cosmin MacWonk Data 10 februarie 2015 21:20:54
Problema Order Scor 90
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.25 kb
#include <fstream>
using namespace std;
ifstream f("order.in");
ofstream g("order.out");
int n,i,afara,care,v[32769],suma;
void update(int nod, int st, int dr, int a, int b, int val)
{
    int m;
    if(a<=st && b>=dr) v[nod]=val;
    else
    {
        m=(st+dr)/2;
        if(a<=m) update(2*nod,st,m,a,b,val);
        if(b>m) update(2*nod+1,m+1,dr,a,b,val);
        v[nod]=v[2*nod]+v[2*nod+1];
    }
}
void query(int nod, int st, int dr, int a, int b)
{
    int m;
    if(a<=st && b>=dr) suma+=v[nod];
    else
    {
        m=(st+dr)/2;
        if(a<=m) query(2*nod,st,m,a,b);
        if(b>m) query(2*nod+1,m+1,dr,a,b);
    }
}
int cb(int x)
{
    int st,dr,m,minim;
    minim=999999;
    st=1; dr=n;
    while(st<=dr)
    {
        m=(st+dr)/2;
        suma=0;
        query(1,1,n,1,m);
        if(suma==afara) minim=m,dr=m-1;
        else if(suma>afara) dr=m-1;
        else st=m+1;
    }
    return minim;
}
int main()
{
    f>>n;
    for(i=1;i<=n;++i) update(1,1,n,i,i,1);
    afara=2;
    for(i=1;i<=n;++i) //a cata eliminare fac
    {
        care=cb(afara);
        update(1,1,n,care,care,0);
        g<<care<<" ";
        afara+=i;
        if(n-i>0) afara%=n-i;
        if(!afara) afara=n-i;
    }
    return 0;
}