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Lesson 3.8 · Trace it

Trace: nested count

Python code10 rows to fill3 marks

Complete the trace table for this Python code. range(a, b) gives the whole numbers from a up to, but not including, b, and range(i) starts at 0. [3]

Line 1: count = 0
Line 2: for i in range(1, 3):
Line 3, indented 1 level: for j in range(i):
Line 4, indented 2 levels: count = count + 1
Line 5: print(count)

Fill in one row each time a line changes i, j or count, or prints something. The table already has the right number of rows. In each row, write only what that line changes; you can leave the other cells empty or copy their values down. Write values the way Python shows them: 3 and 3.0 are different, and text goes in quotes. In the output column, write exactly what appears on screen, with no quotes around it.

Rowijcountoutput
1
2
3
4
5
6
7
8
9
10