Cod sursa(job #2638293)
Utilizator | Data | 27 iulie 2020 18:01:25 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.37 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int n,m;
int exec (int x,int exp)
{
if (exp==0) return 1;
if (exp==1) return x;
else if (exp%2==0)
{
return exec(x*x,exp/2);
}
else return exec(x,exp-1)*x;
}
int main()
{
f>>n>>m;
g<<exec(n,m);
return 0;
}