Cod sursa(job #2647527)
Utilizator | Data | 5 septembrie 2020 10:53:47 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.49 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream be("lgput.in");
ofstream ki("lgput.out");
#define ll long long int
const ll MOD = 1e9 + 7;
long long x=1;
long long hatvany( int n,int p)
{
if(p!=0){
x=hatvany(n,p/2)%MOD;
if(p%2==0){
return (x*x)%MOD;
}
else{
return (x*x)%MOD*n%MOD ;}}
else return x;
}
int main()
{
long long n, p;
be>>n>>p;
ki<<hatvany(n,p);
return 0;
}