Cod sursa(job #2782587)
Utilizator | Data | 12 octombrie 2021 19:06:50 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int main()
{
long long n, p, l=1999999973, i;
in>>n>>p;
long long nr=1, cn=n, k=1;
while(p)
{
if(p==1)
{
/*cn*=n;
p--;*/
break;
}
if(p%2==1 && p!=1)
{
p--;
cn*=n; }
cn*=cn;
p/=2;
cn%=l;
}
out<<cn%l;
return 0;
}