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1.1 KiB
1.1 KiB
brackets
Instructions
Write a program that takes an undefined number of strings in arguments. For each argument, the program prints on the standard output "OK" followed by a newline if the expression is correctly bracketed, otherwise it prints "Error" followed by a newline.
Symbols considered as brackets
are brackets (
and )
, square brackets [
and ]
and braces {
and }
. Every other symbols are simply ignored.
An opening bracket must always be closed by the good closing bracket in the correct order. A string which do not contains any bracket is considered as a correctly bracketed string.
If there is no arguments, the program must print only a newline.
Examples of outputs :
student@ubuntu:~/student/brackets$ go build
student@ubuntu:~/student/brackets$ ./brackets '(johndoe)' | cat -e
OK$
student@ubuntu:~/student/brackets$ ./brackets '([)]' | cat -e
Error$
student@ubuntu:~/student/brackets$ ./brackets '' '{[(0 + 0)(1 + 1)](3*(-1)){()}}' | cat -e
OK$
OK$
student@ubuntu:~/student/brackets$ ./brackets | cat -e
$
student@ubuntu:~/student/brackets$