swap sign sum & multiply castles
* It is an easy problem, if you know the answer.
* Given a square matrix of NxN ordinary numbers.
* Initially place N identi...
3 years ago
Solved
Integer Sequence - 1
Check the test suite to determine the relationship between input integer scalar and output integer scalar.
3 years ago
Solved
Radiation Heat Transfer — View Factors (1)
View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...
3 years ago
Solved
count any radix?
given radix r(2-9), digts d(1-4), give all possible strings in sorted order. for example, if r=2, d=2, then output {'00' '01' '1...
Perimeter of a quadrilateral
There are four cars starting at a point. The first car points north, the second one points east, the third one points south, an...