How to use pow function in C programming particularly in Eclipse - c

Question

I am trying to execute following program in eclipse
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
int a, base, power;
printf("\nBase:");
fflush(stdout);
scanf("%d", &base);
fflush(stdin);
printf("\nExponent:");
fflush(stdout);
scanf("%d", &power);
fflush(stdin);
a = pow(base, power);
printf("\nAnswer: %d", a);
fflush(stdout);
return 0;
getch();
}
the output to the above program should be as follows
Base :
Exponent :
Answer:
but I am getting different output
Base: 2
Exponent: 2
Enter base value: 2
Enter exponent value: 2
The exponent value of 2 is 4
Answer: 0
as you can see the output is asking me to enter the base and exponent values two times where's it should ask only once.
How to disable this?

Answer 1

A couple of things you should fix in your code:
Remove the getch(); line after the return. It won't be executed and you should be getting a compiler warning about this line. Now you can also remove #include<conio.h> as you don't need it.
You fflush() stdin or stdout (as pointed out in the comments).
The resulting code runs just fine and produces the expected output. You can check it out here: https://onlinegdb.com/S1LLp9GoU
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int
main ()
{
int a, base, power;
printf ("\nBase:");
scanf ("%d", &base);
printf ("\nExponent:");
scanf ("%d", &power);
a = pow (base, power);
printf ("\nAnswer: %d", a);
return 0;
}