Given is an integer N.Simon chooses an integer 'a' from the positive integers not greater than 'N' with equal probability. Find the probability that 'a' is odd.

 #include <stdio.h>
int main()
{int n;
float t;
scanf ("%d",&n);
if(n%2==0)
printf("%d",(n/2)/n);
else{
    t=(n/2);
    t=(t+1)/n;
    printf("%.9f",t);}          
    return 0;}

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