Caesar Cipher (2018-2019 ACM-ICPC, China Multi-Provincial Collegiate Programming Contest)(The 2019 Asia Yinchuan First Round Online Programming)
Incryptography,aCaesarcipher,alsoknownastheshiftcipher,isoneofthemoststraightforwardandmostwidelyknownencryptiontechniques.Itisatypeofsubstitutioncipherinwhicheachletterintheplaintextisreplacedbyalett