Cod sursa(job #2456278)
Utilizator | Data | 14 septembrie 2019 09:24:16 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include <bits/stdc++.h>
#define MOD 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
/// a^100 = a^64 * a^32 * a^4
/// 100 (baza 10) = 1100100 (baza 2)
long long P1(long long a , long long n)
{
long long p =1;
while (n > 0)
{
if (n % 2 == 1) p *= a & MOD;
n /= 2;
a *= a & MOD;
}
return p;
}
int main()
{
long long a , n;
fin >> a >> n;
fout << P1(a , n) << "\n";
return 0;
}