Computer Science · May / June 2025 · Paper 21 · Question 4
2210
As printed in the paper
The question as text
A telephone number with 13 characters is input. The first character is a ‘+’, followed by a 2-digit country code, for example: +20xxxxxxxxxx where 20 is the country code and x is a digit between 0 and 9 inclusive. The algorithm includes checks for the country codes: 44 for the UK and 20 for Egypt.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[5]
4(b)[3]
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