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Cod sursa(job #428690)
#include <cstdio>
int par[250010][19];
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",&par[i][0]);
}
for (int i=1;(1<<i)<=n;i++){
for (int j=1;j<=n;j++){
par[j][i]=par[par[j][i-1]][i-1];
}
}
while (m--){
int Q,P;
scanf("%d%d",&Q,&P);
int j=0;
while (P){
if (P&1){
Q=par[Q][j];
}
j++;
P>>=1;
}
printf("%d\n",Q);
}
//system("pause");
return 0;
}