why i cant make this series by C code

Question

I tried to write Series below in C:
series : (1^1),(2^(1/2)),(6^(1/4)),(24^(1/8)),...,((n!)^((1/2)^n)).

C Code:

#include <stdio.h>
#include <math.h>


int fact(int x){
  if (x==1)
    return 1;
    else return x*fact(x-1);
}


int main(){
    int x,y;
    scanf("%d",&x);
    y=x;
    x=fact(x);
    y=pow(0.5,y-1);
    double h;
    h=pow(x,y);
    printf("\n%lf" ,h);
    return 0;
}

Why it's print 1.00000 all the time?

Answer 1

Because the variable y is int, so storing the return value of pow() in it truncates. Read the manual page for pow().

Please check how you enable all warnings in your compiler, and look at the compiler output.

Answer 2

Function pow(a,b) takes double as argument and returns double. Try to replace int with double.