Count number of words
Easy Accuracy: 17.41% Submissions: 3541 Points: 2

Given a string consisting of spaces,\t,\n and lower case  alphabets.Your task is to count the number of words where spaces,\t and \n work as separators.
 

Example 1:

Input: S = "abc def"
Output: 2
Explanation: There is a space at 4th
position which works as a seperator
between "abc" and "def"

 

Example 2:

Input: S = "a\nyo\n"
Output: 2
Explanation: There are two words "a"
and "yo" which are seperated by "\n".


Your Task:  
You don't need to read input or print anything. Your task is to complete the function countWords() which accepts a string as input and returns number of words present in it.

Expected Time Complexity: O(N)
Expected Auxiliary Space: O(1)
where N is length of given String.

Constraints:
2 <= Length of String <= 106

 

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Count number of words

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