Question 1208741
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As I look at this problem, the condition seems strange to me.


<pre>
This restriction "at most 100 gadgets per day", actually, does not work, 
since it is overlayed by other restrictions on available time.


Even if suppose, that this restriction is a fictive essence, then the solution 
for the problem can be easily get MENTALLY.


Indeed, there is only three competitive cases:

    (1) 4 regular, 0 premium gadget,    giving 4*20 = 80 dollars profit;

    (2) 0 regular, 2 premium gadgets,   giving 2*30 = 60 dollars profit;

    (3) 2 regular, 1 premium gadgets,   giving 2*20 + 30 = 70 dollars profit.


My interior feeling is that the numbers in the problem are INCORRECT.
</pre>


Last several days, I see several posts at the forum with incorrect input data.


My impression is that in the opposite end of the internet there is a person,
which specially/intently corrupts data in incoming posts.


<H3>&nbsp;&nbsp;&nbsp;&nbsp;This my message is to the &nbsp;MANAGERS &nbsp;of this project.</H3>