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Week of Code (formerly Weekly Challenges) - 16

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Welcome to the Week 14 of our daily challenges!
Each day you'll get to solve a challenge whose difficulty level increases as the week progresses!
To solve the final challenge, you're given an entire weekend.
There are 5 challenges in total!!
Challenge score decreases by 10% every day.

Tie-breaking rule: For each challenge, we calculate your solved time, t. [t = submit - open] where submit is the time you submitted the solution, and open is the time you opened the challenge. This way, you do not have to worry about solving the challenge as soon as it becomes available.

Note: Any illegal submission will be deleted from leaderboard without warning.

The other scoring rules remain the same. You can read them here.

Are you going to be the next Weekly champion?

Prizes

Top 10 on leaderboard get exclusive HackerRank T shirts

Rules

  • Please refrain from discussing strategy during the contest.
  • All submissions are run through a plagiarism detector. Any case of code plagiarism will disqualify both users from the contest.
  • You can also code using our interface, which currently supports over 40 major languages. Learn about our environment and time limits here. If you are not yet familiar with our platform, check out Solve Me First to acquaint yourself with I/O.
  • HackerRank admin decisions are final.

Scoring

  • Each challenge has a pre-determined score.
  • Your score for a problem depends on the number of test cases your submission successfully passes.
  • A participant's total score is the sum of the scores earned for each problem attempted. If you submitted more than one solution for a problem, only your highest score achieved will be used in this calculation.
  • Participants are ranked by score, with the cumulative time taken (between the contest's start time and the time of your correct submission) used to break ties.

Not a genuine coding contest?