Cod sursa(job #2528682)
| Utilizator | Data | 22 ianuarie 2020 13:08:32 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 0.48 kb |
#include <iostream>
#include <fstream>
using namespace std;
const int MOD = 1999999973;
long long lgput(long long n, long long p)
{
long long a = n; //n^(2^i)
long long sol = 1;
for (long long i = 0ll; (1ll << i) <= p; i++)
{
if ((1ll << i) & p)
sol = (sol * a) % MOD;
a *= a;
}
return (sol % MOD);
}
int main()
{
ifstream cin("lgput.in");
ofstream cout("lgput.out");
long long n, p;
cin >> n >> p;
cout << lgput(n, p) << "\n";
return 0;
}
