Cod sursa(job #1355384)
Utilizator | Data | 22 februarie 2015 17:24:33 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include <iostream>
#include <fstream>
using namespace std;
const int MOD=1999999973;
int p, n;
int lgpow(long long a, int p)
{
long long n=1;
for(int i=0; (1<<i) <=p; i++){
if( ((1<<i) & p)>0)
n=(n*a)%MOD;
a=(a*a)%MOD;}
return n;
}
int main()
{ ifstream cin("lgput.in");
ofstream cout("lgput.out");
cin>>n>>p;
cout<<lgpow(n,p)<<'\n';
return 0;
}