Desik And Sum

CodeChefOpen on judge ↗

Desik writes down all numbers from L to R. He wants to find the sum of even numbers whose sum of digits is divisible by 3. As the range can be very large please help him with the problem. Input First line contains T denoting the number of test cases. T lines follow containing two space separated integers L and R. Output Print the answer to problem for the given test cases in newline. Constra

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

🔒

L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI