to sum up
1. It is difficult to write high-quality code in a competitive environment
2. Forgotten Python basics, some usages should be checked now
A: reformatted string
- Algorithm: Extract digital sequence D and letter sequence A, and splice according to the length of A and D.
- When D = [1,2,3,4], A = ['a', 'b', 'c'], the result is: "1a2b3c4"
- When D = [1,2,3] and A = ['a', 'b', 'c', 'd'], the result is: "a1b2c3d"
- When D = [1,2,3] and A = ['a', 'b', 'c'], the result is: "1a2b3c" or "a1b2c3"
- How to avoid writing three judgment sentences?
- What needs to be improved: The code is not streamlined enough, and there is too much code that repeats logic.