Cod sursa(job #1883866)
| Utilizator | Data | 18 februarie 2017 11:43:50 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.51 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int lg_put(int b, int exp)//ridicare la putere in timp logaritmic cu op pe biti
{
int rez = 1;
for(int bit = 1; bit <= exp; bit <<= 1)
{
if(exp & bit)
rez = 1ll * rez * b % MOD;
b = 1ll * b * b % MOD;
}
return rez;
}
int main()
{
int n, p;
fin >>> n >> p;
fout << lg_put(n,p);
return 0;
}
