Pagini recente » Cod sursa (job #552899) | Cod sursa (job #2059337) | Cod sursa (job #2486844) | Cod sursa (job #3195948) | Cod sursa (job #2705719)
#include <bits/stdc++.h>
using namespace std;
ifstream in("stramosi.in");
ofstream out("stramosi.out");
int a[20][250005];
int n,m,b,c;
int calc(int x,int y)
{
for(int i = 0; i <= 18; ++i)
{
if(x&(1<<i))
{
y = a[i][y];
x -= (1 << i);
}
}
return y;
}
int cit()
{
in>>n>>m;
for(int i=1; i<=n; i++)
in>>a[0][i];
}
void stramosi()
{
for(int i=1; i<=18; i++)
for(int j=1; j<=n; j++)
a[i][j]=a[i-1][a[i-1][j]];
}
void prg()
{
for(int i=1; i<=m; i++)
{
in>>b>>c;
out<<calc(c,b)<<'\n';
}
}
int main()
{
cit();
stramosi();
prg();
return 0;
}