x - 2y + 3z = a
2x + y + z = 4
-3x + 2y - 2z = -10
Additional test cases were added along with an improved solution-checking assertion.
Which doors are open?
Swap the input arguments
Remove the positive integers.
Help the Patriots get to the Super Bowl
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
Return the length of the longest word in the string.
Numerate input arguments
Solve the following boundary value problem
Check if a string starts with another string
Return ! if array element starts with a certain letter. Otherwise return ?
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