Cod sursa(job #3168965)

Utilizator barbuionBarbu Ion barbuion Data 13 noiembrie 2023 21:48:55
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.54 kb
#include<fstream>

using namespace std;
int n,m,a[18][250001];
int stra(int q,int p){
	int x=q,r,i=0;
	while(p){
		r=p&1;
		if(r)
			x=a[i][x];
		i++;
		p>>=1;
	}
	return x;
}
int main(){
	ifstream in("stramosi.in");
	ofstream out("stramosi.out");
	int i,j,p,q,ll;
	in>>n>>m;
	for(j=1;j<=n;j++)
		in>>a[0][j];
		 ll=0;p=1;
		while(p*2<=n){
            ll++;
            p*=2;
		}
	for(i=1;i<=ll;i++)
		for(j=1;j<=n;j++)
			a[i][j]=a[i-1][a[i-1][j]];
	for(;m;m--){
		in>>q>>p;
		out<<stra(q,p)<<"\n";
	}
	return 0;
}