Count Words in a Sentence

MEDIUMString Processing7 marks

Read a sentence and output its number of words.

Words are groups of non-space characters. The sentence may contain leading, trailing, or repeated spaces.

Input: One string. Output: The number of words.

Example:

Input:  pseudocode is useful
Output: 3

Sample Test Cases

Test 1: Three words

Inputs: pseudocode is useful

Expected: 3

Test 2: One word

Inputs: Hello

Expected: 1

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