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README.md |
README.md
swap-name
Instructions
Write a program that takes a first and last name as one argument and swaps them.
- If there is more than one argument, nothing should be printed.
- The argument should contain only alphabetic characters and spaces and only two words, if not, you have to print
"Error\n"
- The result must be followed with a new line at the end (
'\n'
). - Trim any extra spaces in the string.
Usage
$ go run . | cat -e
$ go run . "James Carl" "Peter Lab" | cat -e
$ go run . "ROB carlos" | cat -e
carlos ROB$
$ go run . "He2 $%hello" | cat -e
Error$
$ go run . " JULIE BIRD " | cat -e
BIRD JULIE$
$ go run . "Carl Jon Mic" | cat -e
Error$
$ go run . "ROB" | cat -e
Error$
$ go run . "ROB FASEM" | cat -e
FASEM ROB$