Cod sursa(job #1319741)
Utilizator | Data | 17 ianuarie 2015 13:15:49 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 90 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long int a,b,c=1,i,d;
int main()
{
fin>>a>>b;d=a*a;
if(1&b)
c=a;
for(i=1;1<<i<=b;i++)
{
if(1<<i&b)
c=(c*d)%1999999973;
d*=d;
d=d%1999999973;
}
fout<<c;
}
//25 31720000