Cod sursa(job #1918171)
Utilizator | Data | 9 martie 2017 14:23:52 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <fstream>
#include <iostream>
using namespace std;
const int m = 1999999973;
ifstream f ("lgput.in");
ofstream g ("lgput.out");
long long sol,a;
int b, n, p, i;
int main()
{
f >> n >> p;
a = n;
sol = 1;
for (i = 0; (1<<i) <= p; ++ i)
{
if ( ((1<<i) & p) > 0)
sol= (sol * a) % m;
a=(a * a) % m;
}
g << sol;
}