Find min, mean & max temperature for weather stations

Generate the data

• Run the below command to generate the csv file. File will be created in ./data folder
• python3 create_measurements.py 10000000

Generate the output

• Run the below command. output file will be created in ./data
• go run main.go

Approach

1. Create a map with key as station name and value as channel
2. Iterate through the input file and push the temperature values into a particaluar station channel(Fan Out)
3. A goroutine will be created for each channel and it consumes the temperature values and find the min, mean and max temperature and publish this into aggregate channel(Fan In)
4. Single goroutine will consume from aggregate channel and create a slice, sort it and write to output file

go run main.go -input ./data/measurements_100M.txt -output ./data/sorted_records_100M.txt

2024-05-17 09:03:06.142743122 +0200 CEST m=+0.000046738
records: 413
Sorted records written to sorted_records.txt
Execution time: 1m37.671871738s