Cod sursa(job #1046418)
| Utilizator | Data | 2 decembrie 2013 21:45:53 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.49 kb |
#include<fstream>
using namespace std;
unsigned long long MOD,n,p;
unsigned long long ridicaLaPutere(long long n, long long b){
if (b == 1){
return n;
}
else if (b % 2 == 0){
return (ridicaLaPutere(n, b / 2) % MOD)*(ridicaLaPutere(n, b / 2) % MOD)%MOD;
}
else if(b%2==1) {
return ridicaLaPutere(n, (b - 1)*n)%MOD;
}
}
int main(){
ifstream f("lgput.in");
f >> n >> p;
MOD = 1999999973;
n = n%MOD;
ofstream cout("lgput.out");
cout << ridicaLaPutere(n, p);
}