Cod sursa(job #3234957)
Utilizator | Data | 12 iunie 2024 22:55:47 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.55 kb |
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long power_log(long long a, long long b, long long MOD) {
long long ans = 1;
while (b) {
if (b & 1) {
ans = ans * a;
if (ans >= MOD) {
ans %= MOD;
}
}
a = a * a;
if (a >= MOD) {
a %= MOD;
}
b >>= 1;
}
return ans;
}
int main() {
long long N, P;
fin >> N >> P;
fout << power_log(N, P, 1999999973) << '\n';
return 0;
}