Caesar Cipher shifts every character by a constant. It's easy to code if we use ASCII values.
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Homework: Day 1 P03 P04 P07 P09, hit "join" on the right to register and submit solutions https://codeforces.com/group/yg7WhsFs...

0:00 ASCII codes
2:22 check if lowercase
4:31 digit squared
6:45 Train&Win by Reply Code Challenges
7:46 Caesar Cipher
12:31 homework

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