Problem 3092. Return fibonacci sequence do not use loop and condition

Solution 598443

Submitted on 19 Mar 2015

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Alfonso Nieto-Castanon on 19 Mar 2015

the first test (checking 'for' loops, etc.) is not really doing anything...

Binbin Qi on 19 Mar 2015

Thank you , have fixed it.

Test	Status	Code Input and Output
1	Pass	%%% Clean workspace !/bin/cp fib.m safe !/bin/rm . !/bin/mv safe fib.m % Clean user's function from some known jailbreaking mechanisms functions={'!','feval','eval','str2func','str2num','regex','system','dos','unix','perl','assert','fopen','write','save','setenv','path','please','for','if','while','switch','round','roundn','fix','ceil','char','floor'}; fid = fopen('fib.m'); st = char(fread(fid)'); for n = 1:numel(functions) st = regexprep(st, functions{n}, 'error(''No fancy functions!''); %','ignorecase'); end fclose(fid) fid = fopen('fib.m' , 'w'); fwrite(fid,st); fclose(fid); ans = 0
2	Fail	%% n = 1; f = 1; assert(isequal(fib(n),f)) Error: No fancy functions!
3	Fail	%% n = 6; f = 8; assert(isequal(fib(n),f)) Error: No fancy functions!
4	Fail	%% n = 10; f = 55; assert(isequal(fib(n),f)) Error: No fancy functions!
5	Fail	%% n = 20; f = 6765; assert(isequal(fib(n),f)) Error: No fancy functions!

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