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Cod sursa(job #422587)
#include<cstdio>
const int N=1<<5;
const int M=1<<18;
int a[N][M];
int stramos(int x,int nr)
{
int i=0;
while (nr)
{
if (nr&1)
x=a[i][x];
i++;
nr>>=1;
}
return x;
}
int main()
{
int n,m;
freopen("stramosi.in","r",stdin);
freopen("stramosi.out","w",stdout);
scanf("%d%d",&n,&m);
for (int i=1;i<=n;i++)
scanf("%d",&a[0][i]);
for (int i=1;(1<<i)<=n;i++)
for (int j=1;j<=n;j++)
a[i][j]=a[i-1][a[i-1][j]];
for (int i=1;i<=m;i++)
{
int x,y;
scanf("%d%d",&x,&y);
printf("%d\n",stramos(x,y));
}
return 0;
}