Freaks City

Problem Definition You are provided with a sequence of integers representing daily stock valuation records. Your objective is to execute exactly one pruchase followed by one sale at a subsequent point in time to achieve the highest possible financial gain. Return the calculated net earnings. If the market conditions do not permit a positive yie ...

A. Ribbon Coloring Strategy Alice's optimal strategy is to color the ribbon in a repeating pattern like "123123...". Bob's optimal counter-strategy is to recolor the ribbon to the most frequent color. The most frequent color appears at least ⌈n/m⌉ times, leaving Bob with at most (n - ⌈n/m⌉) recoloring operations. Compare this value wi ...

Problem Analysis and Solution Given two arrays, the goal is to pair elements from each array to maximize the sum of their products. Since positive multiplied by positive yields positive, and negative multiplied by negative also yields positive, we can seperate both arrays into positive and negative components. The optimal strategy is to pair la ...

Problem Description There are n students seeking consultation from a teacher simultaneously. Each student has estimated their consultation time requirements. The teacher can arrange the consultation order, with students entering the teacher's office sequentially. The consultation process for each student consists of: Entering the office - stud ...

Minimum Insertions to Balance Parentheses Validating and repairing parenthesis strings requires tracking the relationship between opening and closing symbols. The algorithm monitors the current balance of unmatched left parentheses while counting necessary insertions. As we traverse the string, left parentheses increment a balance counter, whil ...

We are given an n × m integer matrix. In one operation, we may select a single row and a single column, subtract 1 from every element in that row and every element in that column — except the intersection cell, which is only decremented once (i.e., no double subtraction). Our goal is to minimize the maximum value in the resulting matrix. Key In ...