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The elements in an array must be of the same basic data type but why must they be stored in contiguous memory?
An array is nothing more than a block of contiguous memory addresses divided into one or more units of equal length. We call these units elements. As a result, all elements of an array must be allocated contiguously. Other than padding for memory alignment purposes, an array offers the most compact storage for multiple elements of the same type. And because the elements are allocated contiguously, it is trivial to traverse the array from one element to the next using nothing more than a pointer variable of the same type as the array. Each increment or decrement of the pointer increases or decreases the address by 1 element. The array suffix operator [] does the same thing, except the index is a zero-based offset from the start of the array. The first element is index 0 because it is 0 elements from the start of the array while the nth element is found at index n-1. When we create an array we have the choice of storing the objects themselves in the array or storing a pointer to the objects. With the latter, the objects need not be allocated contiguously, however we consume more memory because the array of pointers consumes additional memory that we wouldn't need to consume were all the objects allocated in the array itself. We also have the additional cost of dereferencing those pointers in order to access the objects being referred to. However, arrays of pointers are advantageous when the objects are larger than a pointer (in bytes) or are of polymorphic type. Copying or moving a large object in memory is more expensive than copying or moving a pointer, so if we need to sort an array of large objects, an array of pointers is generally more efficient despite the indirection. But with polymorphic types we have to use pointers because polymorphic types are not guaranteed to be the same length so we must store a pointer to the common base type if we wish to retain polymorphic behaviour.
What is the decimal equivalent of 0XFFFF?
0X at the beginning represent a number in the hexadecimal system of units. FFFF is the hexadecimal equivalent of i) 65535 in decimal system of units ii) 1111111111111111 in binary system of units
How did the double helix structure match Chargaff's observations?
Chargaff observed that the number of Guanine units in a section/piece of DNA was the same as the number of Cysteine units and that the number of Thymine units equaled the number of Adenine units. This matched the double helix structure because Cysteine pairs with Guanine, and Thymine pairs with Adenine - meaning that Chargaff was right in that there must be an equal number of Cysteines and Guanines as well as equal Thymines and Adenines.
What is the sum of the product of the number of units and the value per unit divided?
Weighted Average
How do you calculate water bill from C programming?
#include<iostream> using namespace std; #include<conio.h> void main() { char m[100]; int units[100],i,j,n; float x,tb; cout<<"enter the total number of bills to be calculate:\n"; cin>>n; for(i=1;i<=n;i++) { cout<<"\nenter the name \n:==>"; cin>>m; for(i=0;i<n;i++) { cout<<"\nenter the total units consumed \n:==>"; cin>>units[i]; } } if(units[i]<=100) { x=units[i]*0.6; tb=50+x; if(tb>300) { tb=0.15*tb+tb; } cout<<"\ncalculated bill:==>"; cout<<m<<tb; } else if(units[i]>100 && units[i]<=300) { tb=100*0.6+(units[i]-100)*0.8+50; if(tb>300) { tb=0.15*tb+tb; } cout<<"\ncalculated bill:==>"; cout<<m<<tb; } else if(units[i]>300) { tb=100*0.6+200*0.8+(units[i]-300)*0.9+50; if(tb>300) { tb=0.15*tb+tb; } cout<<"\ncalculated bill:==>"; cout<<m<<tb; } getch(); }
Draw a rectangle that has 4 rows and 8 columns and determine the number of units around the figure?
Maybe 18 is the aweser
What is the standard form of the number 39000?
The Standard form of the number 39000 is... 3.9 X 104. In standard form, the first significant figure is in the units column (in this case the 3), and the index (the little number) is the number of columns this first significant figure is away from the units column in the actual number. So in 39000, the 3 is four columns away from the unit column, which is why it is 104. Hope that cleared it up. :)
K Pixel means in a camcorder?
Hi, K-pixel would stand for the number of pixels (picture capture elements in the video sensor array) in the `thousands of units`. M-pixel would stand for `millions of units` in the capture array. Hope this helps, Cubby
How do you find price per unit?
Divide the total price by the total number of units.
How do you calculate the Owner occupancy Ratio in a condo?
Learn how many of the units in a condominum are lived in by their owners, and then divide that number by the total number of units there.
What is an elements atomic mass?
it is the total number of protons plus the total number of neutrons expressed in atomic mass units
What happend to the total number of units in the whole when you composed the fraction?
y
Where in a data table should units of measurement be shown?
in the headings of some columns
Formula for total variable cost?
Total Variable Cost = Number of Units * Variable cost per unit
How do you derive the total cost function from the average cost function?
Average cost = Total cost / number of units of a good produced. So Total cost = Average cost X No. of units of a good produced
How do you figure average manufacturing cost per unit?
total cost / number of units
Use the diagram to solve. What is 260 of 6?
It would be a diagram which comprises six lots of 260 units. The total number of units in such a diagram is 1560.
