Jelly_acm的博客

(More) MultiplicationDescriptionEducators are always coming up with new ways to teach math to students. In 2011, an educational software company, All Computer Math (ACM), developed an applic

Fun HouseDescriptionAmerican Carnival Makers Inc. (ACM) has a long history of designing rides and attractions. One of their more popular attractions is a fun house that includes a room of mirr

LexicographyDescriptionAn anagram of a string is any string that can be formed using the same letters as the original. (We consider the original string an anagram of itself as well.) For examp

Word CloudDescriptionA word cloud (or tag cloud) is a visual representation of textual data based on a weighted metric. In the above cloud (which is based on this year's list of Mid-Central te

Reverse RotDescriptionA very simplistic scheme, which was used at one time to encode information, is to rotate the characters within an alphabet and rewrite them. ROT13 is the variant in which

Wet TilesDescriptionAlice owns a construction company in the town of Norainia, famous for its unusually dry weather. In fact, it only rains a few days per year there. Because of this phenomeno