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Jay

Comments 3

Burning Rope

Fold the first rope in half and light both ends to count 15 min. After this is burnt, fold the second rope in half and light it on one end to count 30 min. Result = $$$. Loved Mitch's solution though.

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Swap Variables in Place without XOR

Can also be done as:

a = a/b
b = a*b
a = b/a

NOTE: does not work if a or b is 0

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Swap Variables in Place without XOR

Using the method above, swap a and c first and then swap b and c

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