Write it, run it, read the output

Reading · 4 minQuiz · 5 questions2 code drills · run only

This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.

TASK

Complete the program for [4, 2, 4, 7, 2, 2, 9]. Skip each value whose earlier occurrence is found, then count its full frequency and increment exactly one of uniqueCount or duplicateCount.

Java

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OUTPUT

Sample

Unique: 2
Duplicate: 2

What a finished answer prints, from the lesson. Nothing has run yet — press Run and this is replaced by your program’s own output.

Previous · Check if an Array is Sorted Forward, Backward or Not at All3 parts left before this item is marked done.