new version by Giovanni Cuccu

[giovannicuccu]

Check List:

• [x] You have run ./mvnw verify and the project builds successfully

• [x] Tests pass (./test.sh <username> shows no differences between expected and actual outputs)

• [ x All formatting changes by the build are committed

• [x] Your launch script is named calculate_average_<username>.sh (make sure to match casing of your GH user name) and is executable

• [x] Output matches that of calculate_average_baseline.sh

• [x] For new entries, or after substantial changes: When implementing custom hash structures, please point to where you deal with hash collisions (line number)

• Execution time: 2-4 seconds

• Execution time of reference implementation: 247 seconds

I deleted the prepare file since it was empty and also tested against the 10k file so there should be no issues

[gunnarmorling]

Nice, 00:04.209 now.

Benchmark 1: timeout -v 300 ./calculate_average_giovannicuccu.sh 2>&1
  Time (mean ± σ):      4.245 s ±  0.114 s    [User: 28.500 s, System: 1.481 s]
  Range (min … max):    4.162 s …  4.436 s    5 runs

Summary
  giovannicuccu: trimmed mean 4.209217678993334, raw times 4.43649127766,4.188685001660001,4.261535530660001,4.1774325046600005,4.161600223660001

Leaderboard

| # | Result (m:s.ms) | Implementation     | JDK | Submitter     | Notes     |
|---|-----------------|--------------------|-----|---------------|-----------|
|   | 00:04.209 | [link](https://github.com/gunnarmorling/1brc/blob/main/src/main/java/dev/morling/onebrc/CalculateAverage_giovannicuccu.java)| 21.0.1-open | [Giovanni Cuccu](https://github.com/giovannicuccu) |  |