Cod sursa(job #2032144)
Utilizator | Data | 4 octombrie 2017 17:09:12 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include<cstdio>
#include<algorithm>
using namespace std;
bool cresc;
int main()
{
FILE* in = fopen("lgput.in", "r"); ///probleme
FILE* out = fopen("lgput.out", "w");
int a, b, p = 1;
fscanf(in, "%d%d", &a, &b);
while(b > 0)
{
if(b % 2 == 1)
{
p *= a;
a = a * a;
b--;
b /= 2;
}
else
{
a = a * a;
b /= 2;
}
}
fprintf(out, "%d", p);
}