Coding19

Solve mini weekly programming challenges; have fun; win bragging rights with your peers! Every Monday we post a new problem; you solve it through your favorite programming language and submit the solution.

Problems

#	Active Until	Description	Solution
51	12:00 CET, 14/02/2022	Renting Bikes	Submit
50	12:00 CET, 20/01/2022	Up the Strip	Submit
49	12:00 CET, 20/12/2021	Just one	Submit
48	12:00 CET, 13/12/2021	Divide and Sum	Submit
47	12:00 CET, 06/12/2021	Dreamoon Likes Sequences	Submit
46	12:00 CET, 29/11/2021	Little Girl and Maximum XOR	Submit
45	12:00 CET, 22/11/2021	Number of Simple Paths	Submit
44	12:00 CET, 07/08/2020	Gnomon Numbering	Submit
43	12:00 CET, 31/07/2020	Intuitive Language	Submit
42	12:00 CET, 24/07/2020	Sliders	Submit
41	12:00 CET, 17/07/2020	Coded triangle numbers	Submit
40	12:00 CET, 10/07/2020	Protein Folding	Submit
39	12:00 CET, 03/07/2020	Sub-Triangle	Submit
38	12:00 CET, 26/06/2020	Moving Pentagon	Submit
37	12:00 CET, 19/06/2020	Number Splitting	Submit
36	12:00 CET, 12/06/2020	Is this Integration?	Submit
35	12:00 CET, 05/06/2020	Guessing Game	Submit
34	12:00 CET, 29/05/2020	Cyclical Figurate Numbers	Submit
33	12:00 CET, 27/05/2020	Primonacci	Submit
32	12:00 CET, 25/05/2020	Circus Input	Submit
31	12:00 CET, 22/05/2020	Prime Generating Integers	Submit
30	12:00 CET, 20/05/2020	Counting Capacitor Circuits	Submit
29	12:00 CET, 18/05/2020	Balanced Sculptures	Submit
28	12:00 CET, 13/05/2020	Digital root clocks	Submit
27	12:00 CET, 11/05/2020	Ant and Seeds	Submit
26	12:00 CET, 08/05/2020	Clumsy Cows Input	Submit
25	12:00 CET, 06/05/2020	Triangle containment	Submit
24	12:00 CET, 04/05/2020	Make It Ring a Bell	Submit
23	12:00 CET, 04/05/2020	Totient maximum	Submit
22	12:00 CET, 04/05/2020	Robot Walks	Submit
21	12:00 CET, 27/04/2020	Does It Ring a Bell?	Submit
20	12:00 CET, 24/04/2020	Magic 5-gon Ring	Submit
19	12:00 CET, 22/04/2020	Poker hands	Submit
18	12:00 CET, 20/04/2020	CoLisp19 - Pt I	Submit
17	12:00 CET, 17/04/2020	Number Mind	Submit
16	12:00 CET, 16/04/2020	Counting Sundays	Submit
15	12:00 CET, 15/04/2020	Repeated Digits	Submit
14	12:00 CET, 14/04/2020	Fair Photography Input	Submit
13	12:00 CET, 09/04/2020	Circular Logic	Submit
12	12:00 CET, 08/04/2020	Ruby's Perls	Submit
11	12:00 CET, 07/04/2020	Poisonous Plants Input 1 Input 2	Submit
10	12:00 CET, 06/04/2020	Casa de Papel	Submit
9	12:00 CET, 03/04/2020	Stacks of Flapjacks Input
8	12:00 CET, 02/04/2020	Foolish Primes
7	12:00 CET, 01/04/2020	Reversible Numbers
6	12:00 CET, 31/03/2020	Sudoku
5	12:00 CET, 30/03/2020	Wormholes Input1 Input2
4	12:00 CET, 27/03/2020	Password Derivation
3	12:00 CET, 26/03/2020	The More the Merrier
2	12:00 CET, 25/03/2020	Coin Sums
1	12:00 CET, 24/03/2020	Sierpinski Triangles
0	12:00 CET, 23/03/2020	Quadratic primes

FAQ

Can I suggest a problem?

Of course, use this google form to suggest a new problem. Just make sure that if you copied or edited the problem from a different source, your suggestion complies with the source's copyright regulations.

What time are you going to post the problems and how?

We will post the problem in this webpage every Friday morning (madrid time zone).

How do I submit my response and when?

When you have your response you can submit it using the google form link in the table above.

Do I have to submit the source code of my solution?

Yes! For educational purposes we will post the source code of the three winning solutions. If you don't post your code you cannot be one of the three winners!

Is there a place to discuss the problems?

Of course, there is the coding19 channel at IMDEA Software Mattermost.