Convert between balanced bases! code-golf math
Balanced bases:
Balanced bases are essentially the same as normal bases, except that digits can be positive or negative, while in normal bases digits can only be positive.
From here on, balanced bases of base b may be represented as balb - so bala...
The picture is going to fall!
code-golf
There are 3 nails in the wall. You've got a piece of string that is fixed to the picture frame with both ends. To hang the picture, you entangled the string with the nails. Now you noticed: The middle nail is soon going to fall out. Can you predict whethe...
#include<stdio.h>
#define MAX 100
int main() {
int idx;
char str[MAX];
scanf("%s",&str);
for(idx=0;idx<=MAX;idx++){
if((str[idx]>='a' && str[idx]<='z') || (str[idx]>='A' && str[idx]<='Z'))
printf("this is type of string");
else if(str[idx]<='-32767' || str[idx]>='32768')
printf("this is type of ...
broken keyboard workaround
|nspired by BASTA´s song and memories from earlier work:
Your keyboard is broken but there is some urgent work you have to complete; you have no back^up hardware - and the shops are closed so you can´t buy a new keyboard!
All you have left to work with is your mouse....
Challenge
Origami (folding paper) is a creative form of art. Let's start from beginning - convert a rectangular paper to a square one.
So the paper is divided into squares. We remove the biggest square which shares one shorter edge with the current shape, step by step (see the picture below). A...
I just started c programming as a hobbies and so far I've really enjoyed it.....my only little hurdle is functions. I'm using an app and a couple of books to learn. I'm stuck on a question in my app please help....I've given a pic to show you and if anyone can refer me to a book or site to help...
Challenge
Without the use of any built-in mathematical operations / methods that solve this problem, XOR two decimal integers that you take as input, and output the result in decimal.
Example I/O
Input:
72 85
Output:
29
Input:
4123 4123
Output:
0
This is a code-golf thus shortest c...
There's a nice polynomial expression modulo 7 for the third side given two sides a and b.
or factored
The modulo 7 maps to a remainder in {0,1,2,3,4,5,6}.
I explain why it works in this Math SE answer, though I do think there probably is a cleaner argument I'm missing. The only other two-t...
Take this recent challenge for example. There are many languages where the shortest solution is simply *. Likewise, for other trivial challenges, the same 1-byte program and/or function works in many different languages.
Should we combine these answers into one?
This challenge is a little tricky, but rather simple, given a string s:
meta.codegolf.stackexchange.com
Use the position of the character in the string as an x coordinate and the ascii value as a y coordinate. For the above string, the resultant set of coordinates would be:
0, 109
1, 101
2, 1...
