Cod sursa(job #1344428)
Utilizator | Data | 16 februarie 2015 18:46:22 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.39 kb |
#include <fstream>
using namespace std;
ifstream fin ("lgput.in");
ofstream fout ("lgput.out");
const int mod = 1999999973;
int a, b, sol = 1, tmp = 1;
int main() {
fin >> a >> b;
b %= (mod - 1);
tmp = a;
for (int i = 1; i <= b; i <<= 1) {
if (i & b)
sol = (sol * tmp) % mod;
tmp = (tmp * tmp) % mod;
}
fout << sol;
}