Cod sursa(job #1168539)
Utilizator | Data | 8 aprilie 2014 21:08:44 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include <iostream>
#include <fstream>
using namespace std;
const int MOD=1999999973;
int n,p;
long long rlp(int a, int b)
{
if(a==0) return 1;
if(a==1) return a;
if(b%2==0) return rlp(a*a,b/2)%MOD;
return ((a%MOD)*(rlp(a*a,(b-1)/2)%MOD))%MOD;
}
int main()
{
ifstream f1("lgput.in");
ofstream f2("lgput.out");
f1>>n>>p;
f2<<rlp(n,p);
return 0;
}