1) Write a C program based on the output and given infor. Below:

Part a) - define a char array to hold the input word. Assume each input word contains no more than 20 characters (so what is the minimum capacity the array should be decleared to have?)

- use scanf ("%s %c", ) to read the word and char.

- define a function int length(char word[]) which returns the number of characters in word (excluding the trailing character \0). This function is similar tostrlen(s) C library function shown earlier, and s.length() method in Java.

- define a function int indexOf(char word[], char c) which returns the index (position of the first occurrence) of c in word. Return 1 if c does not occur in word. This function is similar to s.indexof()method in Java. Also, do not use any existing function from the string library and keep on reading until a word "quit" is read in, followed by any character. Hint: You can compare the word against the predefined terminating token quit by characters. Define a function int isQuit(char word[])which checks if word is "quit" and output is shown below: Insert a word and a character separated by blank: hi x

Input word is "hi". Contains 2 characters. Index of 'x' in it is -1

Insert a word and a character separated by blank: hi l

Input word is "hi". Contains 2 characters. Index of 'l' in it is 2

Insert a word and a character separated by blank: analog u

Input word is "analog". Contains 6 characters. Index of 'u' in it is 3

Insert a word and a character separated by blank: quit x

Part b) Write an ANSI-C program that takes input from Standard in, and outputs the occurrence count of digits 0-9 in the inputs.

- use getchar and putchar to read from the standard input. The program continues to read until EOF is entered. Then outputs the occurrence count of each digit in the input.

- use an integer array as the counters, dont use 10 individual counters.

- when a character is read in, how to find the corresponding counter? Dont use statement such as if (c=='0') else if (c=='1') else if (c=='2') else Instead, use the onestatement trick discussed in class, which takes advantage of the index of the character to figure out the corresponding counter in the array.

sample output: TTBY2042M DB131

^D (press Ctrl and D)

0: 1

1: 3

2: 2

3: 1

4: 0

5: 0

6: 0

7: 0

8: 0

9: 0