Subsequence Frequency Counting

CodeChefRating 2357Open on judge ↗

Chef has a sequence of integers $A_1, A_2, \ldots, A_N$. He takes a sheet of paper and for each non-empty subsequence $B$ of this sequence, he does the following: 1. For each integer which appears in $B$, count its number of occurrences in the sequence $B$. 2. Choose the integer with the largest number of occurrences. If there are several options, choose the smallest one. 3. Finally, write down

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