Cod sursa(job #2188011)
| Utilizator | Data | 26 martie 2018 21:35:15 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.49 kb |
#include <iostream>
#include <bits/stdc++.h>
#include <fstream>
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
#define ullong unsigned long long
ullong pwr(ullong n, ullong p)
{
ullong x=1;
for(ullong i=0;(1<<i)<=p;i++)
{
if(p&(1<<i))
x=(1LL*x*n)%1999999973;
n=(1LL*n*n)%1999999973;
}
return x;
}
int main()
{
ullong a, b;
f>>a>>b;
g<<pwr(a, b);
f.close();
g.close();
return 0;
}
