Cod sursa(job #2044550)
Utilizator | Data | 21 octombrie 2017 11:02:25 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <iostream>
#include <fstream>
#define MOD 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
void put(int a, int p, int &rez)
{
if(p == 0)
return;
if(p % 2 != 0)
{
rez *= a;
p--;
}
else
{
p /= 2;
a = a*a;
}
put(a,p,rez);
}
int main()
{
int a, p ,rez = 1;
f>>a>>p;
put(a, p ,rez);
g<<rez%1999999973;
return 0;
}