Cod sursa(job #2478235)
Utilizator | Data | 21 octombrie 2019 19:51:15 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int lgput(int n, int a)
{
int ans = 1;
while(a > 0)
{
if(a % 2 == 1)
ans *= n; /// 3
a /= 2; /// 1
n *= n; /// 81
}
return ans;
}
int main()
{
int a, n;
fin >> n >> a;
fout << lgput(n, a);
return 0;
}