Cod sursa(job #639700)

Utilizator cioboata.iCioboata Ioan Liviu cioboata.i Data 23 noiembrie 2011 19:52:49
Problema Stramosi Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.52 kb
#include<cstdio>

int a[18][250001];

int stram(int x,int lung)
{
	int i=0;
	while(lung)
	{
		if(lung%2!=0)
			x=a[i][x];
		lung/=2;
		i++;
	}
	return x;
}

int main()
{
	freopen("stramosi.in","r",stdin);
	freopen("stramosi.out","w",stdout);
	int m,n,x,lung,i,j;
	scanf("%d%d",&n,&m);
	for(i=1;i<=n;i++)
		scanf("%d",&a[0][i]);
	for(i=1;(1<<i)<=n;i++)
		for(j=1;j<=n;j++)
			a[i][j]=a[i-1][a[i-1][j]];
	for(i=1;i<=m;i++)
	{
		scanf("%d%d",&x,&lung);
		printf("%d\n",stram(x,lung));
	}
	return 0;
}