Starting with an empty stack, the sequence of operations push(1), push(2), pop(), push(5), leaves the stack, from top to bottom, as:
1, 2
5, 2
2, 5
5, 1

The correct option is: 5, 1.

To understand the sequence of operations and resulting stack, let's go through the steps one by one:

Starting with an empty stack: The stack is empty, and we haven't added any elements yet.

push(1): The push operation adds an element to the top of the stack. In this case, we add the number 1 to the stack, so the stack becomes [1].

push(2): We perform another push operation, this time adding the number 2 to the top of the stack. So, the stack becomes [1, 2].

pop(): The pop operation removes the top element from the stack. In this case, the top element is 2, so we remove it from the stack. The resulting stack is [1].

push(5): We add the number 5 to the top of the stack using the push operation, so the stack becomes [1, 5].

Final stack: At this point, we have completed all the operations. The resulting stack, from top to bottom, is 5 at the top and 1 at the bottom.

In summary, the sequence of operations push(1), push(2), pop(), push(5) leaves the stack with the elements 5 at the top and 1 at the bottom.

Know more about the pop operation click here:

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HELLLP PLEASEEEEEEEEE

What is the result of the following code fragment?
BigInteger a = new BigInteger ("10");
BigInteger b = new BigInteger ("25");
a.multiply(b);
a.add(b);
System.out.println(a);


A. 10
B. 35
C. 250
D. 275

Pls help I’m not trying to fail this

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B.
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C.
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Please help!!
The following are two different images that are encoded using the same algorithm. The images are each in a 5 by 5 grid of pixels where each pixel is black, white, red, green or blue.

The image on the left gets encoded and compressed down to 21 digits while the image on the right gets compressed down to 25 digits. Although the same algorithm was used to encode and compress these images, why are the end results a different length?


The algorithm was probably used improperly in the image on the right, causing it to be a longer length than it should have been.

Because this is a lossy compression, sometimes information is lost during the compression.

The amount of size reduction from compression depends on the amount of redundancy in the original data.

The image on the right uses more colored squares and therefore requires more digits to represent the pixels.

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OA.
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OB.
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O c.
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Reset
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PLS HELP
1. You can tape a movie off Showtime.
a. if you use it for educational purposes.
b. only if you have written permission from the company.
c. so that it may be archived.
d. to use as an entertainment for your great students.

2. You may photocopy parts of the encyclopedia:
a. if it is for your use only.
b. only if your copy is of the subject you are researching.
c. if you don’t have a copy at home.
d. to pass out to all your students.

3. You may record a local symphony concert to share with your class:
a. as long as you don’t sell tickets to hear it.
b. as long as you use it at a listening center in your room.
c. if you relate it to your lessons.
d. you may not record a public performance of any kind.

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a. if you are giving it to a friend.
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