Problem 2653. Beauty of Parentheses

Solution 1665680

Submitted on 4 Nov 2018 by Augusto Mazzei

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Test	Status	Code Input and Output
1	Pass	str = '(()(()(()(()))))'; out = {'( )'; ' ()( ) '; ' ()( ) '; ' ()( ) '; ' () '} assert(isequal(braces(str),out)) out = 5×1 cell array {'( )'} {' ()( ) '} {' ()( ) '} {' ()( ) '} {' () '} '( )' ' ()( ) ' ' ()( ) ' ' ()( ) ' ' () '
2	Pass	str = '()'; % trivial test out = {'()'}; assert(isequal(braces(str),out)) '()'
3	Pass	str = '((((()))))'; out = {'( )'; ' ( ) '; ' ( ) '; ' ( ) '; ' () '} assert(isequal(braces(str),out)) out = 5×1 cell array {'( )'} {' ( ) '} {' ( ) '} {' ( ) '} {' () '} '( )' ' ( ) ' ' ( ) ' ' ( ) ' ' () '
4	Pass	a = randi(10); str = ''; for i = 1:a str = [str '()']; end out = {str}; assert(isequal(braces(str),out)) '()'
5	Pass	str = '()(((())))()'; out = {'()( )()'; ' ( ) '; ' ( ) '; ' () '} assert(isequal(braces(str),out)) out = 4×1 cell array {'()( )()'} {' ( ) '} {' ( ) '} {' () '} '()( )()' ' ( ) ' ' ( ) ' ' () '
6	Pass	a = randi(10); str = ''; for i = 1:a str = ['(' str ')']; end out = {}; for i = 1:a s = [32ones(1,i-1) '(' 32ones(1,2a-2i) ')' 32*ones(1,i-1)]; out = [out; s]; end assert(isequal(braces(str),out)) '( )' ' ( ) ' ' ( ) ' ' ( ) ' ' ( ) ' ' ( ) ' ' () '