SOLVE THE QUESTION IN CPP, USING NAMESPACE STD, IN A SIMPLE BUT HIGHLY EFFICIENT WAY, AND PROVIDE IT WITH THIS RESTYLING:
no comments, no space between operator and operand but proper margin and indentation, brackets open on the next line always and do not forget to rename variables as short as possible, possibly alphabets
来源：https://prompts.chat/prompts/cmmrrjphg000akw04eiizj6yb
SOLVE THE QUESTION IN CPP, USING NAMESPACE STD, IN A SIMPLE BUT HIGHLY EFFICIENT WAY, AND PROVIDE IT WITH THIS RESTYLING:
no comments, no space between operator and operand but proper margin and indentation, brackets open on the next line always and do not forget to rename variables as short as possible, possibly alphabets
