To challenge or not

CodeChefRating 3493Open on judge ↗

Problem description. Chef became the problem writer of ACM/ICPC regional contest this year. One week before the contest, Chef came up with an interesting idea, and wrote the following problem : Given N integers A1, A2, ..., An, print YES (or NO) if there exists (or not) 3 numbers that form an arithmetic sequence. All integers are between 0 and 99999 (inclusive). As Chef expected, during the c

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