text: /*
   * Validate if a given string is numeric.
   *
   * Some examples:
   * "0" => true
   * " 0.1 " => true
   * "abc" => false
   * "1 a" => false
   * "2e10" => true
   *
   * Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before implementing one.
   *
   * Update (2015-02-10):
   * The signature of the C++ function had been updated. If you still see your function signature accepts a const char * argument, please click the reload button to reset your code definition.
   */
  
  #ifndef LEETCODE_VALID_NUMBER_H
  #define LEETCODE_VALID_NUMBER_H
  
  #include <stdbool.h>
  
  bool isNumber_65_1(char *s);
  
  #endif //LEETCODE_VALID_NUMBER_H
  