Cod sursa(job #1774479)
| Utilizator | Data | 8 octombrie 2016 23:55:58 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.47 kb |
#include <iostream>
#include <fstream>
using namespace std;
long long putere(int a, int p) {
if (p < 1) {
return 1;
}
long long r = 1;
if (p%2==1) {
r = putere(a, p-1);
r = r * a;
} else {
r = putere(a, p/2);
r = r*r;
}
return r % 1999999973;
}
int main() {
ifstream cin("lgput.in");
ofstream cout("lgput.out");
long long n, p;
cin>>n>>p;
cout<<putere(n, p);
}
