Cod sursa(job #2617942)

Utilizator levladiatorDragutoiu Vlad-Ioan levladiator Data 23 mai 2020 13:09:54
Problema Order Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.87 kb
#include <bits/stdc++.h>
#define NMAX 30005
using namespace std;
ifstream fin("order.in");
ofstream fout("order.out");

int n;
int aib[NMAX];

void update(int x,int val)
{
    for(int i=x;i<=n;i+=i&(-i))
        aib[i]+=val;
}
int compute(int x)
{
    int suma=0;
    for(int i=x;i>=1;i-=i&(-i))
    {
        suma+=aib[i];
    }
    return suma;
}
int main()
{
    fin>>n;
    for(int i=1;i<=n;i++)
    {
        update(i,1);
    }
    int mod=n,cnt=1;
    for(int i=1;i<=n;i++)
    {
        cnt+=(i-1);
        cnt%=mod;
        int st=1,dr=n,mij,rasp;
        while(st<=dr)
        {
            mij=(st+dr)/2;
            if(compute(mij)<cnt+1)st=mij+1;
            else
            {
                rasp=mij;
                dr=mij-1;
            }
        }
        fout<<rasp<<'\n';
        update(rasp,-1);
        mod--;
    }
}