Cod sursa(job #2811175)
| Utilizator | Data | 1 decembrie 2021 13:55:40 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.52 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
const int MOD = 1999999973;
long long power(int a, int b) {
if (b == 0) {
return 1 % MOD;
}
if (b == 1) {
return a % MOD;
}
if (b % 2 == 0) {
return (power(a, b/ 2, MOD) * power(a, b/ 2, MOD)) % MOD;
} else {
return (a * power(a, b - 1, MOD)) % MOD;
}
}
int main() {
long long a, b;
fin >> a >> b;
fout << power(a, b);
return 0;
}
