Computer Science · May / June 2025 · Paper 1 TZ2 SL · Question 5
Adapt for 2027Tracing a loop with nested selection is taught, but the IB pseudocode should be rewritten in Python or Java.
IBCS
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5. Construct a trace table for the following algorithm: N = 5 S = 0 R = 0 loop while N > 0 A = N mod 3 if A = 0 then S = S – N else if A = 1 then S = S + N else S = S + 1 end if end if R = R + S N = N - 1 end loop output ('The result is ', R) [6]
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