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I Plead the Fifth

Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

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remove nans fast

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MATLAB Counter

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Maximum running product for a string of numbers

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Counting Sequence

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Scrabble Scores

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Tic Tac Toe FTW

Given a tic tac toe board: * 1 represents X * 0 represents empty. * -1 represents O It is X's move. If there is an imme...

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The Goldbach Conjecture, Part 2

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Summing Digits within Text

Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

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The Goldbach Conjecture

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Pattern matching

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Encode Roman Numerals

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Elapsed Time

Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

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Kaprekar Steps

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Find the two-word state names

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Find common elements in matrix rows

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Remove any row in which a NaN appears

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Return the 3n+1 sequence for n

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Find state names that start with the letter N

Given a list of US states, remove all the states that start with the letter N. If s1 = 'Alabama Montana Nebraska Vermont Ne...

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Reverse the Words (not letters) of a String

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Get the area codes from a list of phone numbers

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Remove all the words that end with "ain"

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Quote Doubler

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Counting Money

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

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Determine if input is odd

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Find state names that end with the letter A

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Alphabetize by last name

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Read a column of numbers and interpolate missing data

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Interpolator

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