Shoe Pairs

CodeChefOpen on judge ↗

You are given N shoes, each having a size. Two shoes form a valid pair if they have the same size. Each shoe can be used in at most one pair. Your task is to determine the maximum number of valid pairs that can be formed. ### Input The first line contains an integer N. The second line contains N integers representing the sizes of the shoes. ### Output Print a single integer — the total number

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