Files in C-programming, factorial
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1. Files can be used to store data. There is a function called feof() in standard C library to detect end of file condition. Assume that the input file contains simplified census data; each line contains a record and each record has name, sex, and age in a specific city. Write the pseudocode to find % of males, % of females, % of children (i.e. <17 years old), % of adults (ages 18 to 54), and % of elderly citizens (ages 55 and above).
2. Assuming that n is an integer argument, write a function to compute factorial(n) where
factorial(n) = 1, when n = 1
= factorial(n-1) * n if n > 1
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You can use any of the:
int factorial (int n) ;
int factorial1 (int n) ;
functions.
However, recursive version:
int factorial1 (int n) ;
is not memory efficient.
Use
int factorial (int n) ;
for efficient ...
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