Cod sursa(job #1841125)
| Utilizator | Data | 5 ianuarie 2017 12:57:47 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.6 kb |
#include <bits/stdc++.h>
using namespace std;
unsigned long long n,p,ans;
unsigned long long put(unsigned long long a,unsigned long long b){
if (b<0){
a=1/a;
b=-b;
}
if (b==0) return 1;
long long y=1;
while (b>1) {
if (b%2==0){
a*=a;
b/=2;
}
else{
y*=a;
a*=a;
b=(b-1)/2;
}
}
return a*y;
}
int main(){
ifstream cin ("lgput.in");
ofstream cout ("lgput.out");
cin>>n>>p;
ans=put(n,p);
cout<<ans%1999999973;
return 0;
}
