December Code

Developer readiness system

Know your level.
Know what to fix.

10 questions in a subject. A readiness figure with the arithmetic shown, the gap that's holding you back, and a set of problems sized for today.

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5 subjects · 72 topics · free: 1 diagnostic a month, 15 problems a day

Diagnostic complete · DBMSExample

Readiness

49/100

10 questions · 10 of 14 topics

Primary gap
Normalization
Root causes
Normalization0/1
Transactions & ACID0/1
Indexing0/1
Priority
High priority

Today's fix

Normalization · Transactions · Indexing

10 targeted problems · ~20 min

Start
Readiness mapone cell per topic · every subject at once
DSA
74 · 12/14
SQL
63 · 10/12
Aptitude
81 · 14/17
OOP
66 · 12/15
DBMS
49 · 12/14
< 50 · high50–79 · medium≥ 80 · stablenot tested< 3 attemptsscore · tested/topics

Try the system

One real question. Graded here.

Every problem in the bank carries a hint, a verdict, and an explanation of why each wrong option is wrong. This one isn't recorded.

SQL · Aggregate functionseasy

Table Orders(order_id, customer_id, amount), where the amount column can contain NULL values for a few rows. Which expression returns the total number of rows in Orders, including rows where amount is NULL?

Choose one option
Nothing is recorded — this one is just to show you how it works.

The loop

  1. 01

    Assess

    10 questions, easy → hard, ~15 min

  2. 02

    Diagnose

    readiness, primary gap, root causes

  3. 03

    Prioritise

    high · medium · stable, ranked by evidence

  4. 04

    Practise

    today's fix, sized in problems and minutes

  5. 05

    Reassess

    retakes rotate to untested topics

score = Σ(weight × correct) ÷ Σ(weight) × 100 · easy 1 · medium 2 · hard 3 · shown under every score

Straight answers

What this is, and what it isn't.

Will this get me placed?
No tool can promise that, and we don't. It tells you where you stand in the five subjects interviews test, and what to fix today. We don't recruit and no company sees your scores.
How accurate is the figure?
A measurement of 10 questions, not a prophecy. The arithmetic is under every score, and a topic scored from one question is drawn faded until you've attempted three.
What's free?
1 diagnostic a month and 15 problems a day, every subject, every explanation. Paid adds unlimited practice and retakes. No timer on that.

Fifteen minutes from now: a figure, a gap, a fix.

Free to start. No card, no timer.

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