Cod sursa(job #727942)

Utilizator andrey932Andrei andrey932 Data 28 martie 2012 13:10:14
Problema Order Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.5 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("order.in");
ofstream fout("order.out");
#define MAXN 30005

int n,m,i,tura,j,k,arb[4*MAXN],poz;
void init(int nod, int st, int dr) {
	if (st<dr) {
		arb[nod]=dr-st+1;
	}
	if (st==dr) arb[nod]=st;
	if (st<dr) {
		int mij=(st+dr)>>1;
		if (st<=mij) init(nod*2,st,mij);
		if (mij<dr) init(nod*2+1,mij+1,dr);
	}
}

int elim(int nod, int st, int dr, int poz) {
	if ( (st==dr)) {	
		int rez=arb[nod];
		arb[nod]=0;
		return rez;		
	}
	else if (st<dr) {
		arb[nod]--;
		int mij=(st+dr)>>1;
		int ls,ld;
		if ( (st==mij) && (arb[nod*2]>0) ) ls=1; else ls=arb[nod*2];
		if (dr==mij+1) ld=1; else ld=arb[nod*2+1];
		
		if (poz<=ls) return elim(nod*2,st,mij,poz);
		else if (mij+1<=dr)       return elim(nod*2+1,mij+1,dr,poz-ls);
		
		
	}
	return -1;
}

int main() {
	fin>>n;
	init(1,1,n);
	k=n;
	i=0;
	tura=1;
	/*for(i=0;i<=15;i++) {
		cout<<"arb["<<i<<"]="<<arb[i]<<"\n";
	}*/
	i=1;
	while (k>0) {
		i+=tura;
		i%=k;
		if (i==0) i=k;
		m=elim(1,1,n,i);
		/*cout<<"\n\n-----TURA "<<tura<<" >>sterge pozitia "<<i<<"\n";
		for(j=0;j<=15;j++) {
			cout<<"arb["<<j<<"]="<<arb[j]<<"\n";
		}*/
		fout<<m<<" ";
		i--;
		k--;
		tura++;
	}	
	/*cout<<"\n";
	i=1;
	k=n;
	int rez[MAXN];
	for(i=1;i<=n;i++) rez[i]=i;
	for(tura=1;tura<=n;tura++) {
		i+=tura;
		i%=k; if (i==0) i=k;
		k--;
		cout<<rez[i]<<" ";
		for(j=i;j<=n;j++) rez[j]=rez[j+1];
		i--;
	}*/
	fout<<"\n";
	fout.close();
	return 0;
}