Pagini recente » Cod sursa (job #2575185) | Cod sursa (job #2937009) | Cod sursa (job #2354783) | Cod sursa (job #2551763) | Cod sursa (job #215712)
Cod sursa(job #215712)
#include <stdio.h>
#define N 250250
int n,m,q,p,a[18][N];
void scr();
int calcul(int p,int q)
{
//scr();
for(int j=0 ; p ; ++j,p>>=1)
if(p&1)
q=a[j][q];
return q;
}
void scr()
{
for(int j=1;j<18;j++)
{
for(int i=1;i<=n;i++)
{
if(a[j-1][i])
a[j][i]=a[j-1][ a[j-1][i] ];
}
}
}
void citire()
{
int i;
scanf("%d%d",&n,&m);
for(i=1;i<=n;i++)
{
scanf("%d",&a[0][i]);
}
scr();
for(i=1;i<=m;i++)
{
scanf("%d%d",&q,&p);
/*
for(int j=1;j<=p;j++)
{
q=v[q];
}
*/
printf("%d\n",calcul(p,q));
}
}
int main()
{
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
citire();
return 0;
}