Mai intai trebuie sa te autentifici.
Cod sursa(job #2811167)
| Utilizator | Data | 1 decembrie 2021 13:46:38 | |
|---|---|---|---|
| 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;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int putere(int a, int b, int c) {
if (b == 0) {
return 1 % c;
}
if (b == 1) {
return a % c;
}
if (b % 2 == 0) {
return (putere(a, b/ 2, c) * putere(a, b/ 2, c)) % c;
} else {
return (a * putere(a, b - 1, c)) % c;
}
}
int main() {
int a, b;
fin >> a >> b;
fout << putere(a, b, 1999999973);
return 0;
}
