Cod sursa(job #2381431)
| Utilizator | Data | 16 martie 2019 19:09:58 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.58 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long int N, P;
long int lgput(long int N, long int P) {
long int y = 1;
if(P == 0 || N == 1)
return 1;
while(P > 1)
if(P % 2 == 0) {
N = N * N % MOD;
P = P / 2;
} else {
y = y * N % MOD;
N = N * N % MOD;
P = (P - 1) / 2;
}
return N * y;
}
int main() {
in >> N >> P;
out << lgput(N, P);
return 0;
}
