Cod sursa(job #2040896)
Utilizator | Data | 16 octombrie 2017 17:33:00 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
int putere(int a,int b)
{
int p=1;
while(b)
{
if(b%2)
{
b--;
p*=a;
}
else
{
a*=a;
b/=2;
}
}
return p;
}
int main()
{
int a,b;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
fin>>a>>b;
fout<<putere(a,b)%MOD;
return 0;
}