Cod sursa(job #2503755)

Utilizator mihaimodiMihai Modi mihaimodi Data 3 decembrie 2019 18:51:51
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.67 kb
#include <fstream>
#include <climits>
using namespace std;
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
int n,m;
int d[20][250001];
int main()
{
    fin>>n>>m;
    for(int i=1;i<=n;i++)
        fin>>d[0][i];
    for(int i=1;(1<<i)<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            d[i][j]=d[i-1][d[i-1][j]];
        }
    }
    for(int i=1;i<=m;i++)
    {
        int x, nr;
        fin>>x>>nr;
        int t=x;
        while(nr!=0)
        {
            int j=1,p=0;
            while(j*2<=nr)
                j=j*2,p++;
            t=d[p][t];
            nr-=j;
        }
        fout<<t<<'\n';
    }
    return 0;
}