How to count the number of words in a string?

white-space total-number white-spaces blank-space string-codeforwin


Input string: I love Codeforwin. To count total number of words in a string we just need to count total number of white spaces. White space characters includes single blank space ’ ', Tab , New line . That was an easy drill. The above method to count number of words is simplest to understand and implement. However, it’s not the optimal method.
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