Cod sursa(job #968448)
Utilizator | Cretu Bogdan reking | Data | 2 iulie 2013 03:28:44 |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.45 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,p;
long long powmodulo ()
{
long long b=1;
while (p)
{
if ((p&1))
{
b=((b%MOD)*(n%MOD))%MOD;
p--;
}
n=((n%MOD)*(n%MOD))%MOD;
p=(p>>1);
}
return b*1LL;
}
int main ()
{
f>>n>>p;
g<<1LL*powmodulo();
}