Cod sursa(job #1113250)
Utilizator | Data | 20 februarie 2014 14:59:20 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
#define mod 1999999973
long long n,p;
long long pw(long long n,long long k)
{
int i;
long long sol(0);
for(i=0;(1<<i)<=k;++i){
if ((1<<i)&k) sol=(sol+n)%mod;
n=n*n%mod;
}
return sol%mod;
}
int main()
{
f>>n>>p;
g<<pw(n%mod,p);
return 0;
}