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[FE] - TO HOANG MINH QUAN (tohoangminhquan.dp@gmail.com)#269

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thmq169 wants to merge 4 commits into
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thmq169:feat/solutions
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[FE] - TO HOANG MINH QUAN (tohoangminhquan.dp@gmail.com)#269
thmq169 wants to merge 4 commits into
99techteam:mainfrom
thmq169:feat/solutions

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@thmq169 thmq169 commented May 12, 2026

Problem 1 : Three ways to sum to N

Summary: Demonstrate three different approaches to calculate the sum from 1 to n: iterative loop, functional programming with reduce, and recursion. It also includes simple test cases to compare the outputs of each implementation.

Problem 2 : Fancy Form

image

Summary: A modern and responsive currency swap interface that allows users to simulate token exchanges with smooth interactive animations and intuitive user experience:

  • View available token balances
  • Swap between different currencies
  • Dynamic token icons
  • Swap direction toggle
  • Mock transaction confirmation flow
  • Loading states and validations
  • Responsive and animated user interface

Problem 3 : Messy React

Summary: Improved type safety, fixed incorrect filtering/rendering logic, and removed unnecessary recalculations and unstable React keys. Refactored the component into a cleaner and more maintainable structure with safer rendering flow and better formatting handling.

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