Cod sursa(job #1515643)
Utilizator | Data | 1 noiembrie 2015 22:39:51 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <iostream>
#include <cstdio>
#define Mod 1999999973
using namespace std;
int b,pw;
int lgpow(int b,int pw)
{
if(pw==1)
return b;
int p=lgpow(b,pw/2);
return (p*p*(pw%2 ? b : 1))%Mod;
}
int main()
{
freopen("lgput.in","rt",stdin);
freopen("lgput.out","wt",stdout);
cin>>b>>pw;
if(!pw)
cout<<1<<'\n';
else
cout<<lgpow(b,pw);
return 0;
}