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Cod sursa(job #919249)
#include<fstream>
using namespace std;
ifstream f("stramosi.in");
ofstream g("stramosi.out");
int n,m,i,j,x,y,k,a[20][250010];
int main()
{
f>>n>>m;
for(i=1;i<=n;++i)
f>>a[0][i];
for(i=1;i<=17;++i)
for(j=1;j<=n;++j)
a[i][j]=a[i-1][a[i-1][j]];
for(k=1;k<=m;++k)
{
f>>x>>y;
for(i=0;y;++i)
if(y&(1<<i))
{
x=a[i][x];
y-=(1<<i);
}
g<<x<<'\n';
}
return 0;
}