Cod sursa(job #2760081)
Utilizator | Data | 22 iunie 2021 19:38:22 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include <iostream>
#include <fstream>
using namespace std;
int lgput(int a, int b)
{
if(b%2==0){
b/=2;
a*=a;
int c=a;
for(int i=1; i<b; i++) c=c*a;
return c;
} else {
b/=2;
int c=a;
a*=a;
for(int i=1; i<=b; i++) c=c*a*a;
return c*a;
}
}
int main()
{
ifstream f("lgput.in");
ofstream g("lgput.out");
int a, b;
f>>a>>b;
g<<lgput(a,b);
return 0;
}