Cod sursa(job #1566307)
Utilizator | Data | 11 ianuarie 2016 23:05:35 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include<iostream>
using namespace std;
#define MOD 1999999973
int lgp(int x, int n,int mod)
{
if(n<0) return lgp(1/x,-n, mod);
else if(n==0) return 1;
else if(n==1) return x%mod;
else if(n%2==0) return lgp((x%mod)*(x%mod), n/2, mod);
else if(n%1==0) return (x%mod)*lgp((x%mod)*(x%mod), (n-1)/2, mod);
}
int main()
{
cout<<lgp(2,5,MOD);
return 0;
}