Although I am a specialist and thus have many contests to participate in, I feel bad for our div1 friends who haven't had a rated contest in almost a month... on any platform!! (codeforces, atcoder, topcoder...)

I feel very bad for them, so can someone please write a contest for them?

I am struggling with a question about Consensual Human Cannibalism:

You have n (1 <= n <= 2000) plates of humans, and each plate has a deliciousness assosiated with it: a1, a2, .., a_n, and you must count: How many quadruplets of plates (w,x,y,z) are there such that a_w+a_x+a_y+a_z = 0 (the deliciousnesses sum to 0)

I can only think of a O(n^4) slution.. any ideas?

With no div1 contests in the next two weeks, and div2 contests being too easy for me, I am looking for a challenge. Will there be any IOI mirror on any site for us non-participants to follow along?

Prompt: Does the use of electronic devices in schools support society?

The presupposition that use of electronic devices in schools supports society basically is a categorical truth in a pretty big way. Although some advocates of non-use of electronic devices in schools would for the most part argue use of electronic devices in schools specifically is a vice, these kind of romantic critics literally are too dogmatic in their provincial ideology. Use of electronic devices in schools essentially is an issue pertaining to our definitely current and definitely past state, or so they kind of thought. Two prominent archetypes that for the most part exemplify how use of electronic devices in schools generally is beneficial really are The Recession of 2008 and American Revolution, which mostly is quite significant.

The Recession of 2008 illustrates how use of electronic devices in schools really is crucial to our everyday life in a for all intents and purposes big way. The Recession of 2008 affected society as it mostly is today, through definitely many factors, definitely such as use of electronic devices in schools, so two prominent archetypes that really exemplify how use of electronic devices in schools for all intents and purposes is beneficial basically are The Recession of 2008 and American Revolution, which for all intents and purposes is quite significant. Nevertheless, The Recession of 2008 actually encouraged the support of use of electronic devices in schools, showing virtuous effects, inducing the birth of renewable energy in a for all intents and purposes major way. Society must actually take action, or definitely more foreboding events like The Recession of 2008 will impend in a subtle way.

Use of electronic devices in schools prominently displays sort of positive effects, including improving beneficial events, which really is quite significant. A case for this specifically was the American Revolution, where use of electronic devices in schools improved actually daily life by essentially means of trading, showing how nevertheless, The Recession of 2008 actually encouraged the support of use of electronic devices in schools, showing virtuous effects, inducing the birth of renewable energy, definitely contrary to popular belief. Civilization for all intents and purposes is greatly affected by use of electronic devices in schools and should literally be considered by world leaders as a virtue in a definitely big way.

In summation, the notion that use of electronic devices in schools specifically is a vice generally is itself a fallacy that will often end in failure, It kind of is only by backing use of electronic devices in schools will society basically achieve success, demonstrating that although some advocates of non-use of electronic devices in schools would for all intents and purposes argue use of electronic devices in schools particularly is a vice, these basically romantic critics actually are too dogmatic in their provincial ideology, basically contrary to popular belief.

Downvote lovers, a Serious Issue

The presupposition that Downvote lovers supports society is a categorical falsehood. Although some pro advocates of Downvote lovers would argue Downvote lovers has beneficial sides, these romantic critics are too dogmatic in their provincial ideology. Downvote lovers is an issue pertaining to our current and past state. Two prominent archetypes that exemplify how Downvote lovers is malicious are Codeforces Blog Posts and Codeforces Round Announcements.

Codeforces Blog Posts illustrates how Downvote lovers are not crucial to our everyday life. Codeforces Blog Posts affected society as it is today, through many factors, such as Downvote lovers. Accordingly, Codeforces Blog Posts actually encouraged the support of Downvote lovers, showing malicious effects, inducing the birth of cheaters. Society must take action, or more foreboding events like Codeforces Blog Posts will impend.

Downvote lovers prominently displays negative effects, including worsening beneficial events. A case for this was Codeforces Round Announcements, where Downvote lovers degraded daily life by means of spamming. Civilization is greatly affected by Downvote lovers and should be considered by world leaders as a depravity.

In summation, the notion that Downvote lovers is a virtue is its self a fallacy that will often end in failure. It is only by banning Downvote lovers will society achieve success.