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Sholpan [36]
3 years ago
6

Consider the expression 3 * 2 ^ 2 < 16 5 AndAlso 100 / 10 * 2 > 15 - 3. Which operation is performed second?

Computers and Technology
1 answer:
miss Akunina [59]3 years ago
7 0

Answer:

In the first expression

3 * 4 will be performed second.

In the second expression

10* 2  will be performed second.

Explanation:

In many programming language, there is an operator precedence where the operator (e.g. +, - , * , / etc) will be executed following a specific order. For example, the operator ^ which denotes power will always be executed prior to * or /    and if / and * exist in the same expression, the operator positioned at the left will be executed first.

Hence, in the expression 3*2^2 < 16 , 2 will be powered to 2 (2^2) first and then only multiplied with 3.

In the expression 100 / 10 * 2 > 15 - 3,  100 will be divided by 10 and then only multiplied with 2.

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The sizeof approach is generally not recommended, since this information is lost as soon as you pass the array to a function, because then it becomes a pointer to the first element.

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import

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Before a program written in c can be executed on a computer, what step is required to be done first?
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3 years ago
Which algorithm makes the most efficient use ofmemory?
SashulF [63]

Answer:

Best-fit Algorithm

Explanation:

Best-fit: Allocating the smallest memory location that is greater than or equal to the size of process.

<u>Example</u>

Let these are the memory locations-210kb,310kb,260kb,610kb

                    and size of processes-160kb,450kb,250kb,300kb

For the first-fit,

We allocate 160 kb to the 210kb memory location

Then, we allocate 450 kb to the 610kb because others don't have the size.

Then,we allocate 250kb to the 310 kb.

300 kb will stop,as no memory locations can execute.

For the Best-fit,

We allocate 160 kb to the 210kb memory location

Then,we allocate 450kb to the 610kb.

Then,we allocate 250kb to the  260kb not 310kb according to best-fit.

Then we allocate 300kb to the 310kb.

For the worst fit,

We allocate 160 kb to the 610kb memory location according to the worst-fit algorithm.

Then,we can't allocate 450kb to any memory location.

Then,we allocate 250kb to the 310kb .

We can' allocate 300kb in 260kb memory location.

As we can see from this example that in First-fit algorithm 300kb process will stop as no memory location is there.

In worst-fit algorithm ,We can't allocate 450kb,300kb to any memory locations.

In Best-fit algorithm,we can allocate the process to each location,so this algorithm is using memory in a efficient way.    

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