Cod sursa(job #3256521)

Utilizator stefanvoicaVoica Stefan stefanvoica Data 14 noiembrie 2024 19:41:53
Problema Stramosi Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.65 kb
#include <bits/stdc++.h>
#define mod 1000000007
#define int long long
#define dim 250002
using namespace std;
ifstream fin ("stramosi.in");
ofstream fout("stramosi.out");
int str[20][dim];

int query (int x,int k)
{
    int sol = x;
    for (int i=0;i<=18;i++)
        if (k & (1<<i))
		sol = str[i][sol];
    return sol;
}

int32_t main()
{
    int n,i,j,m,x,k;
    fin>>n>>m;
    for (i=1;i<=n;i++)
        fin>>str[0][i];
    for (i=1;i<=18;i++)
    {
       for (j=1;j<=n;++j)
            str[i][j]=str[i-1][str[i-1][j]];
    }
    while (m--)
    {
        fin>>x>>k;
        fout<<query(x, k)<<'\n';
    }
    return 0;
}