Problem Statement

Every night, Booking.com's reservation sync service receives a chronological log of booking requests from a partner

…

Given an array of values, determine the required result under the following conditions.

Input: [4, 8, 15, 16, 23, 42]

Output: 3

Constraints: 1 ≤ n ≤ 10⁵

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fee is 3 + 5 = 8, which is the minimum possible.

solution.cpp

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HardMed•106 views

Every night, Booking.com's reservation sync service receives a chronological log of booking requests from a partner

…

Given an array of values, determine the required result under the following conditions.

Input: [4, 8, 15, 16, 23, 42]

Output: 3

Constraints: 1 ≤ n ≤ 10⁵

Unlock the full statement, examples, constraints, and solution guidance.

Ending preview

…

fee is 3 + 5 = 8, which is the minimum possible.

HardMed•106 views

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Last updated Oct 10, 2026