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Cod sursa(job #470248)
#include<fstream>
using namespace std;
int tata[250002];
int main(){
ifstream f("stramosi.in");
ofstream g("stramosi.out");
int n,m;
f>>n>>m;
int i,x,y;
for(i=1;i<=n;i++){
f>>x;
tata[i]=x;
}
for(i=1;i<=m;i++){
f>>x>>y;
while(tata[x]!=0 && y!=0){
y--;
x=tata[x];
}
if(y!=0){
g<<0<<'\n';
}
else{
g<<x<<'\n';
}
}
return 0;
}