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Balancing Brackets
code-golf
A quick and dirty challenge... I'm actually surprised this hasn't been done previously... Given a string consisting entirely of the characters ()[]{}, determine if it is "balanced". That is, every opening bracket must have a closing bracket of the same type followin...
A covering array is an N by k array in which each element is one of {0, 1, ..., v-1} (so v symbols in total), and for any t columns chosen (so an N x t array) contains all possible v^t tuples.
Input: N, k, t, v (all 4 are positive integers), and then N x k integers, each of which comes from {0,...
In Minecraft, the default item textures are all reasonably simple 16×16 pixel images, which makes them seem ideal for golfing.
Below are simplified textures of the five "core" diamond tools in Minecraft: pickaxe, shovel, axe, sword, and hoe.
The images shown are enlarged to show their detail. C...
Your task is to generate boxes using any one ASCII character with respect to the inputs given.
Test Cases
1 1 --> =====
= =
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1 2 --> =========
= = =
=========
2 1 --> =====
= =
=====
= =
=====...
Your task is to determine whether a graph is planar.
A graph is planar if it can embedded in the plane, or in other words if it can be drawn without any crossing edges.
Input: You will be given an undirected graph in your choice of the following formats:
Edge list, e.g. [(0, 1), (1, 2), (3, 4...
C++
Just a port of the (excellent) Python answer by Mitch Schwartz. The primary difference is that I used 2 to represent -1 for the a variable and did something similar for b, which allowed me to use an array. Using Intel C++ with -O3, I got N=141! My first version got N=140.
This uses Boost. I...
main(c){for(;~(c=getchar());putchar(c>96?20-c/122+5*c/16:c));}
Found this line of code used in the following link. Need to know the reason for 20, 122, 5 and 16 in the above code
Letters in phone numbers
