John Lexus questions

• If I can't define a variable inside an if-condition, how can I reduce searching through my array multiple times in this code?
• Design function so variables get assigned values without large if/else block
• How to detect duplicates in large json file using PySpark HashPartitioner
• Using Collectors.toMap to return a LinkedHashMap
• nvcc fatal : Value 'sm_20' is not defined for option 'gpu-architecture'

John Lexus answers