Cod sursa(job #2482930)
Utilizator | Data | 29 octombrie 2019 08:35:13 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,k;
long long powlg(long long n,long long k)
{
if(k==0)return 1;
else if(k==1)return n;
else if(k%2)return n*powlg(n*n,(k-1)/2);
else return powlg(n*n,k/2);
}
int main()
{
f>>n>>k;
g<<powlg(n,k);
g.close();
f.close();
return 0;
}