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[
{
"role": "user",
"content": "Background\nThe sequence in the title is A245788 \"n times the number of 1's in the binary expansion of n\" (\"times\" here means multiplication), which starts like this:\n1, 2, 6, 4, 10, 12, 21, 8, 18, 20,\n33, 24, 39, 42, 60, 16, 34, 36, 57, 40,\n63, 6... |
[
{
"role": "user",
"content": "(related)\nYour challenge is to output the highest number you can. You can output as a number or as a string. You must output something that matches the regex ^\\d+$, as in only 0-9. \nThe Twist\nYour source code must be:\n\nSame forwards and backwards\n3 bytes long\nThe middle... |
[
{
"role": "user",
"content": "Sereja is playing a game called Winner Eats Sandwich with his friends. There are N persons in total, including Sereja. Sereja is allotted the number 1, while his friends are allotted numbers from 2 to N. A set of this game consists of M parts. Probability that a player numbered... |
[
{
"role": "user",
"content": "This is the cops' thread. The robbers' thread is here.\nYour challenge is to make a program that runs forever without halting1, unless it gets a particular input or inputs2. If it receives that input, it must terminate in a finite amount of time3. This is code-golf, so the shor... |
[
{
"role": "user",
"content": "Some built-in functions in PHP return mixed types, like file_get_contents that returns both string or false. Union structs in C can be used to simulate this, but is there a way to make it polyglot, that is, can be run in both PHP and C without (major) modification? Macros is of... |
[{"role":"user","content":"A ski base is planned to be built in Walrusland. Recently, however, the p(...TRUNCATED) |
[{"role":"user","content":"A team of furry rescue rangers was sitting idle in their hollow tree when(...TRUNCATED) |
[{"role":"user","content":"The question: Given an a number n ≥ 2, how many distinct pairs of point(...TRUNCATED) |
[{"role":"user","content":"A sequence of non-negative integers a_1, a_2, ..., a_n is called growing (...TRUNCATED) |
[{"role":"user","content":"In this challenge, you must design a species of single-celled organisms t(...TRUNCATED) |
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