Cod sursa(job #2335853)
Utilizator | Data | 4 februarie 2019 16:12:17 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long power(long long x, long long y){
if(y==0)
return 1;
if(y==1)
return x;
long long res=power(x,y/2);
if(y%2==0)
return res*res;
return res*res*x;
}
int main(){
long long x;
long long y;
f>>x>>y;
g<<power(x,y);
}