Cod sursa(job #1667770)
Utilizator | Data | 29 martie 2016 10:54:30 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 30 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.41 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream f ("lgput.in");
ofstream g ("lgput.out");
long long n,p;
long long lgput(long long a, long long b){
long long x;
if(b==1) return a;
else{
x=lgput(a,b/2)%1999999973;
if(b%2==0) return (x*x)%1999999973;
else return (x*x*a)%1999999973;
}
}
int main()
{
f>>n>>p;
g<<lgput(n,p)<<'\n';
return 0;
}