Problem 10. Determine whether a vector is monotonically increasing

Solution 881052

Submitted on 24 Apr 2016

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Pankaj Soni on 24 Apr 2016

function tf = mono_increase(x)
tf = false;

if x(1,1)>=y(1, length(x))
fprintf('false \n');
elseif x(1,1)==0
fprintf('true\n');
else
fprintf('false\n');
end
end

%this is compiling in matlab with all inputs

Test	Status	Code Input and Output
1	Fail	x = [0 1 2 3 4]; assert(isequal(mono_increase(x),true)); true Assertion failed.
2	Fail	x = [0]; assert(isequal(mono_increase(x),true)); false Assertion failed.
3	Pass	x = [0 0 0 0 0]; assert(isequal(mono_increase(x),false)); false
4	Pass	x = [0 1 2 3 -4]; assert(isequal(mono_increase(x),false)); false
5	Pass	x = [-3 -4 2 3 4]; assert(isequal(mono_increase(x),false)); true
6	Fail	x = 1:.1:10; assert(isequal(mono_increase(x),true)); true Assertion failed.
7	Pass	x = cumsum(rand(1,100)); x(5) = -1; assert(isequal(mono_increase(x),false)); true
8	Fail	x = cumsum(rand(1,50)); assert(isequal(mono_increase(x),true)); true Assertion failed.