Why SA 16 16 0 is equivalent to SA 10H 0 20

Dizzy... After watching it for a long time, I thought it wasn't fully displayed, and it looks like I have to go to sleep.

16 Actually equivalent to the shift operation of the segment base address. Because when calculating the address, the segment base address always has to be shifted to the left by 1 bit, note that this 1 bit is 1 bit of hexadecimal, which is equivalent to *16. So the segment address is (sa + 16) :

0, and (sa + 16) is (sa + 10h), and finally the above conclusion is reached.

If you still don't understand it, you can deduce (sa+16)*16+0 from sa+10h:0 in reverse, and it will be clear at a glance.

Since you apply for int a[3][4] then its space is.

a[0][0]

a[0][1]

a[0][3]

a[1][0]

a[2][2]

a[2][3]

In this way the space is continuous.

So a is the first address of the array, and &a[0][0] is also the first address of the array, so a=&a[0][0].

a[0] is the first address of line 0, and because line 0 is the first line of the array, a[0]=a;

a[0] is to take the address of a[0] and you a[0] is the address in the first place, so &a[0]=a[0] is a=*(&a[0])=a[0]=a[0][0].

Actually, don't bother with so much.

There is no point in deriving so many steps.

Just know the first step, the program address sa * 16 + 256, and you're good to go.

1+2*10-11/2

This part of the calculation is integer, and the result is only an integer, and then the result is doubled.

So 11 2=5 instead.

So the result is 16,0

11 2 The result is an int integer, and the result is 5, so the final result is 16

Because expressions (1+2*10-11 2) are all integer data, and the result of 11 2 is 5, the value of the expression is 16, and you are forced to double type, so yes, if the expression 11 2 is changed, the result of the calculation is it.

You deform that inequality. It is possible to derive bx< f(x)

Separate the two equations, the left side solves the equation about a, and the right side does the same. Braces are because they are meant to be both.

Sixteen to the power of zero is equal to one.

Five times sixteen to the power of zero is equal to five times one, which is five.

16decimal to 10.

132 (hexadecimal) = > 1*16 2+3*16 1+2*16 0=30 (decimal).

Number guess idiom 0 ten 0 0 The answer is [nothing] [Explanation]: Nothing. It refers to money, but also to grades and knowledge.

From]: "Dunhuang Variation Anthology: Lushan Yuangong Words": "Like the moon in the water, the wind in the air, there is no law, there is nothing."

Example]: Now Sister Feng, Jia Lian is full of debts.

1. According to the average score, the average score of A is 84, and that of B is 85, so B admits 2 and three scores according to the ratio of 3:5:2, and A's score = 93

B's score = 95

So A is admitted.

3. Looking at the picture, there are a total of 7 people with a score of 85 or more, so A can definitely be admitted, but B may not be admitted, because there may be someone who scores more than or less than 85 points.

The total number of students = 7 + 10 + 14 + 13 + 6 = 50, and only 8 are admitted, so the acceptance rate = 8 50 100% = 16%.

(1) Average score of A: (93 + 86 + 73) 3 = 84 Average score of B: (95 + 81 + 79) 3 = 85

It can be seen that B should be admitted.

2) Weighted average: A: (93 3 + 86 5 + 73 2) 10 = B: (95 3 + 81 5 + 79 2) 10 = When A is admitted.

3) Admit 8 employees, 7 between 85 and 90, including A (, can be admitted, but B (points) between 80 and 85 may not be admitted.

The total number of people who took the test = 6 + 13 + 14 + 10 + 7 = 50 acceptance rate = 8 50 = 16%.

Original = (add 30 times, a total of 31 items are added) ==

2 is an astronomical number, so the result can be expressed directly as above.

(1) Right.

10h＝1＊16＾1＋0＊16＾0＝16

2) It is similar to the formula of decimal numbers, except that decimal numbers are every 10 into 1, and hexadecimal numbers are every 16 into 1, for example: 189 decimal 1*10 2+8*10 1+9*10 0