Cod sursa(job #2717039)
Utilizator | Data | 6 martie 2021 10:38:58 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.42 kb |
#include <iostream>
#include <fstream>
#define mod 1999999973
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
int n,p;
int exp(int a,int b)
{
int cur=a,rez=1;
for(int i=1;i<=b;i=i<<1)
{
if(b&i)
{
rez=(rez*cur)%mod;
}
cur=(cur*cur)%mod;
}
return rez;
}
int main()
{
in>>n>>p;
out<<exp(n,p);
return 0;
}