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asked in Web Development by (160 points)  
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The old keypad of the telephone, it has 10 numbers (10 keys) , this keypad allows the user to enter a text by successively pressing certain key many times in a small period of time. you need to draw a graph of entering a text input using this keypad.  after that you need to have a certain algorithm of finding the length of a path to enter certain text
  

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