Given the following struct definition:
 struct time 
 {
 int hr ;
 int min ;
 int sec ;
 }
 , write a function,
 struct time sec2hms( int secs )
 which takes, as an argument, the number of seconds since midnight, and returns the time of day.
 Copy the file readPeople.c. The main function should be in fine shape. You need to finish the function readPeople, and supply the freePeople function.
 readPeople
 Given a file handle and an array of null pointers:
 Read the information (last name, first name, age ) for a single person
 Store that information in a person instance allocated from the heap.
 Append that instance to the array argument
 Attempt to read another person
 Here is a sample input file:
 Smith
 Granny
 68
 Tape
 Scott
 32
 Wire
 Barbara
 45
 You may assume:
 Entries are complete. If there's a last name, then there's a first name and an age
 Data is correct. Age will always convert to an integer.
 freePeople
 This function simply returns the heap instances pointed to by the array to the heap. Do not assume that the array is dense. Check every position for a non-NULL pointer.