Cod sursa(job #1889503)

Utilizator mateigabriel99Matei Gabriel mateigabriel99 Data 22 februarie 2017 19:07:30
Problema Stramosi Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.55 kb
#include <bits/stdc++.h>

#define NMax 250005

using namespace std;

ifstream fin("stramosi.in");
ofstream fout("stramosi.out");

int N,M;
int T[20][NMax];

int main()
{
    fin>>N>>M;
    for(int i=1;i<=N;i++)
        fin>>T[0][i];

    for(int i=1;(1<<i)<=N;i++)
        for(int j=1;j<=N;j++)
            T[i][j]=T[i-1][T[i-1][j]];

    for(int i=1;i<=M;i++)
    {
        int x,y;
        fin>>x>>y;
        for(int i=0;(1<<i)<=y;i++)
            if(y&(1<<i))
                x=T[i][x];
        fout<<x<<"\n";
    }
    return 0;
}