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Implement Stack using Two Queues
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194
Version A (efficient push):
push:
enqueue in queue1
pop:
while size of queue1 is bigge...
Algorithm for Determining Tic Tac Toe Game Over
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133
You know a winning move can only happen after X or O has made their most recent move, so you c...
What is “2's Complement”?
...positive integers, start counting up, with a maximum of 2(number of bits - 1)-1.
for negative integers, do exactly the same thing, but switch the role of 0's and 1's (so instead of starting with 0000, start with 1111 - that's the "complement" part).
Let's try it with a mini-byte of 4 bits (we'll ca...
How to increase font size in a plot in R?
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145
You want something like the cex=1.5 argument to scale fonts 150 percent. But do see help(par) ...
Why does changing 0.1f to 0 slow down performance by 10x?
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1627
Welcome to the world of denormalized floating-point! They can wreak havoc on performance!!!
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Why can't R's ifelse statements return vectors?
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100
The documentation for ifelse states:
ifelse returns a value with the same
shape as test ...
Convert a row of a data frame to vector
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156
When you extract a single row from a data frame you get a one-row data frame. Convert it to a...
What is the difference between print and puts?
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381
puts adds a new line to the end of each argument if there is not one already.
print does not a...