Question

3. Write a function named "countNonAlpha" that accepts a string. It will return the number of non-alphabet characters (excluding blanks) in the string.
For example, if the string is "Hello, World!", it will return 2 for ',' and '!" in the string.

4. Write a function named "deleteZeros" that takes two arguments:
a. an array of integer values;
b. an integer for the number of elements in the array;
The function will return the number of zeros that it has deleted from the array
The function should shift the contents of each element in the array whenever a zero
element is deleted
For example, if the array is defined as
int numList[] = {10, 0, 20, 30, 40, 0, 50};
The function will return 2 and shift to make the array to contain
10 20 30 40 50

5. Write a function named "reverseCase" that takes only one argument of a C-string (an array of characters that terminates with a NULL ('\0') character).
The function will change all lower cases to upper case and vice versa in that given
C-string. If the character is not an alphabet, it will be unchanged.
The function will return the number of letters that it has changed.
For example, if the array is defined as
char greeting[] = " Hello, World! ";
It will return 10 and change the array to contain
hEELO, wORLD!

Answer 1

#include<stdio.h>
int countNonAlpha(char *str){
   int count=0;
   for(int i=0;str[i]!='\0';i++){
char ch=str[i];
if( !((ch >= 97 && ch <= 122) || (ch >= 65 && ch <= 90)))
if(ch!=' ')
count++;
   }
   return count;
}
int main(){
   char *str="Hello, World!";
   printf("%d",countNonAlpha(str));
}

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