Question

Write pseudocode for a function that translates a telephone number with letters in it (such as 1-800-FLOWERS) into the actual phone number. Use the standard letters on a phone pad

Answer 1

Take the first character.

Covert A, B, and C to 2,

D, E, and F to 3,

G, H, and I to 4,

J, K, and L to 5,

and M, N, and O to 6,

P, Q, R, and S to 7,

T, U, and V to 8,

and W, X, Y, and Z to 9 .

CODE:

Initialize actual phone number to the empty string

For each character in the phone number

If the character is A, B or C

     Append a 2 to the end of actual phone number

Else if the character is D, E or F

     Append a 3 to the end of actual phone number

Else if the character is G, H or I

    Append a 4 to the end of actual phone number

Else if the character is J, K or L

    Append a 5 to the end of actual phone number

If the character is M, N, O

     Append a 6 to the end of actual phone number

Else if the character is P,Q,R,S

    Append a 7 to the end of actual phone number

Else if the character is T,U,V

    Append a 8 to the end of actual phone number

Else if the character is W,X,Y,Z

    Append a 9 to the end of actual phone number

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