Cod sursa(job #2347450)
Utilizator | Turcas Andrei AndreiTurcas | Data | 18 februarie 2019 20:00:04 |
---|---|---|---|
Problema | Stramosi | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.63 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");
int n, m, a[21][250001];
int main()
{
f >> n >> m;
for(int i = 1; i <= n; ++i)
{
int x; f >> x;
a[0][i] = x;
}
for(int i = 1; (1<<i) <= n; ++i)
for(int j = 1; j <= n; ++j)
if(a[i-1][j])
a[i][j] = a[i-1][a[i-1][j]];
for(int i = 1; i <= m; ++i)
{
int x, y;
f >> x >> y;
for (int i = 0; i <= 18; ++i) {
if ((1<<i) & y)
x = a[i][x];
}
g << x << "\n";
}
}