The tokens in the code segment are as follows:
- switch - Keyword
- ( - Punctuation
- inputvalue - Identifier
- ) - Punctuation
- { - Punctuation
- case - Keyword
- 1 - Integer Literal
- : - Punctuation
- b - Identifier
- = - Operator
- c - Identifier
- Operator
- d - Identifier
- ; - Punctuation
- break - Keyword
- ; - Punctuation
- default - Keyword
- : - Punctuation
- b - Identifier
- = - Operator
- b - Identifier
- ++ - Operator
- ; - Punctuation
- break - Keyword
- ; - Punctuation
- } - Punctuation
Therefore, the number of tokens in the given C code segment is 26.