The document discusses C arrays, including:
- Arrays allow storing a collection of related data of the same type in contiguous memory locations accessed via an index.
- One dimensional arrays have a single subscript, while two dimensional arrays have two subscripts for rows and columns.
- Arrays simplify storing large collections of data compared to individual variables, and allow accessing elements via an index.
- Examples show declaring, initializing, and accessing array elements, as well as searching arrays and storing/reading strings.
C programming, learn array 2020 week 5 and week 6, Students should know how to define/declare, initialize arrays, and multidimensional arrays types. so they can apply this knowledge during the implementation of software applications.
C programming, learn array 2020 week 5 and week 6, Students should know how to define/declare, initialize arrays, and multidimensional arrays types. so they can apply this knowledge during the implementation of software applications.
Homework Assignment – Array Technical DocumentWrite a technical .pdfaroraopticals15
Homework Assignment – Array Technical Document
Write a technical document that describes the structure and use of arrays. The document should
be 3 to 5 pages and include an Introduction section, giving a brief synopsis of the document and
arrays, a Body section, describing arrays and giving an annotated example of their use as a
programming construct, and a conclusion to revisit important information about arrays described
in the Body of the document. Some suggested material to include:
Declaring arrays of various types
Array pointers
Printing and processing arrays
Sorting and searching arrays
Multidimensional arrays
Indexing arrays of various dimension
Array representation in memory by data type
Passing arrays as arguments
If you find any useful images on the Internet, you can use them as long as you cite the source in
end notes.
Solution
Array is a collection of variables of the same type that are referenced by a common name.
Specific elements or variables in the array are accessed by means of index into the array.
If taking about C, In C all arrays consist of contiguous memory locations. The lowest address
corresponds to the first element in the array while the largest address corresponds to the last
element in the array.
C supports both single and multi-dimensional arrays.
1) Single Dimension Arrays:-
Syntax:- type var_name[size];
where type is the type of each element in the array, var_name is any valid identifier, and size is
the number of elements in the array which has to be a constant value.
*Array always use zero as index to first element.
The valid indices for array above are 0 .. 4, i.e. 0 .. number of elements - 1
For Example :- To load an array with values 0 .. 99
int x[100] ;
int i ;
for ( i = 0; i < 100; i++ )
x[i] = i ;
To determine to size of an array at run time the sizeof operator is used. This returns the size in
bytes of its argument. The name of the array is given as the operand
size_of_array = sizeof ( array_name ) ;
2) Initialisg array:-
Arrays can be initialised at time of declaration in the following manner.
type array[ size ] = { value list };
For Example :-
int i[5] = {1, 2, 3, 4, 5 } ;
i[0] = 1, i[1] = 2, etc.
The size specification in the declaration may be omitted which causes the compiler to count the
number of elements in the value list and allocate appropriate storage.
For Example :- int i[ ] = { 1, 2, 3, 4, 5 } ;
3) Multidimensional array:-
Multidimensional arrays of any dimension are possible in C but in practice only two or three
dimensional arrays are workable. The most common multidimensional array is a two
dimensional array for example the computer display, board games, a mathematical matrix etc.
Syntax :type name [ rows ] [ columns ] ;
For Example :- 2D array of dimension 2 X 3.
int d[ 2 ] [ 3 ] ;
A two dimensional array is actually an array of arrays, in the above case an array of two integer
arrays (the rows) each with three elements, and is stored row-wise in memory.
For Example :- Program to fill .
An array is a group of data items of same data type that share a common name. Ordinary variables are capable of holding only one value at a time. If we want to store more than one value at a time in a single variable, we use arrays.
An array is a collective name given to a group of similar variables. Each member in the group is referred to by its position in the group.
Arrays are alloted the memory in a strictly contiguous fashion. The simplest array is a one-dimensional array which is a list of variables of same data type. An array of one-dimensional arrays is called a two-dimensional array.
● Introduction to Arrays
● Declaration and initialization of one dimensional and two-dimensional
arrays.
● Definition and initialization of String
● String functions
This is a presentation on Arrays, one of the most important topics on Data Structures and algorithms. Anyone who is new to DSA or wants to have a theoretical understanding of the same can refer to it :D
Homework Assignment – Array Technical DocumentWrite a technical .pdfaroraopticals15
Homework Assignment – Array Technical Document
Write a technical document that describes the structure and use of arrays. The document should
be 3 to 5 pages and include an Introduction section, giving a brief synopsis of the document and
arrays, a Body section, describing arrays and giving an annotated example of their use as a
programming construct, and a conclusion to revisit important information about arrays described
in the Body of the document. Some suggested material to include:
Declaring arrays of various types
Array pointers
Printing and processing arrays
Sorting and searching arrays
Multidimensional arrays
Indexing arrays of various dimension
Array representation in memory by data type
Passing arrays as arguments
If you find any useful images on the Internet, you can use them as long as you cite the source in
end notes.
Solution
Array is a collection of variables of the same type that are referenced by a common name.
Specific elements or variables in the array are accessed by means of index into the array.
If taking about C, In C all arrays consist of contiguous memory locations. The lowest address
corresponds to the first element in the array while the largest address corresponds to the last
element in the array.
C supports both single and multi-dimensional arrays.
1) Single Dimension Arrays:-
Syntax:- type var_name[size];
where type is the type of each element in the array, var_name is any valid identifier, and size is
the number of elements in the array which has to be a constant value.
*Array always use zero as index to first element.
The valid indices for array above are 0 .. 4, i.e. 0 .. number of elements - 1
For Example :- To load an array with values 0 .. 99
int x[100] ;
int i ;
for ( i = 0; i < 100; i++ )
x[i] = i ;
To determine to size of an array at run time the sizeof operator is used. This returns the size in
bytes of its argument. The name of the array is given as the operand
size_of_array = sizeof ( array_name ) ;
2) Initialisg array:-
Arrays can be initialised at time of declaration in the following manner.
type array[ size ] = { value list };
For Example :-
int i[5] = {1, 2, 3, 4, 5 } ;
i[0] = 1, i[1] = 2, etc.
The size specification in the declaration may be omitted which causes the compiler to count the
number of elements in the value list and allocate appropriate storage.
For Example :- int i[ ] = { 1, 2, 3, 4, 5 } ;
3) Multidimensional array:-
Multidimensional arrays of any dimension are possible in C but in practice only two or three
dimensional arrays are workable. The most common multidimensional array is a two
dimensional array for example the computer display, board games, a mathematical matrix etc.
Syntax :type name [ rows ] [ columns ] ;
For Example :- 2D array of dimension 2 X 3.
int d[ 2 ] [ 3 ] ;
A two dimensional array is actually an array of arrays, in the above case an array of two integer
arrays (the rows) each with three elements, and is stored row-wise in memory.
For Example :- Program to fill .
An array is a group of data items of same data type that share a common name. Ordinary variables are capable of holding only one value at a time. If we want to store more than one value at a time in a single variable, we use arrays.
An array is a collective name given to a group of similar variables. Each member in the group is referred to by its position in the group.
Arrays are alloted the memory in a strictly contiguous fashion. The simplest array is a one-dimensional array which is a list of variables of same data type. An array of one-dimensional arrays is called a two-dimensional array.
● Introduction to Arrays
● Declaration and initialization of one dimensional and two-dimensional
arrays.
● Definition and initialization of String
● String functions
This is a presentation on Arrays, one of the most important topics on Data Structures and algorithms. Anyone who is new to DSA or wants to have a theoretical understanding of the same can refer to it :D
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We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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C%20ARRAYS.pdf.pdf
1. C ARRAYS
-a collection of same type data, 1D,
2D-
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Name: Gurpreet Singh
Dept. UCCA(IT&R]
2. ARRAYS
▪ An array is a collection of elements of the same type that
are referenced by a common name.
▪ Compared to the basic data type (int, float & char) it is
an aggregate or derived data type.
▪ All the elements of an array occupy a set of contiguous
memory locations.
▪ Why need to use array type?
▪ Consider the following issue:
"We have a list of 1000 students' marks of an
integer type. If using the basic data type (int),
we will declare something like the following…"
int studMark0, studMark1, studMark2, ..., studMark999;
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3. ARRAYS
▪ Can you imagine how long we have to write the
declaration part by using normal variable
declaration?
int main(void)
{
int studMark1, studMark2, studMark3,
studMark4, …, …, studMark998, stuMark999,
studMark1000;
…
…
return 0;
}
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4. ARRAYS
▪ By using an array, we just declare like this,
int studMark[1000];
▪ This will reserve 1000 contiguous memory locations for storing the
students’ marks.
▪ Graphically, this can be depicted as in the following figure.
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5. ARRAYS
▪ This absolutely has simplified our declaration of the
variables.
▪ We can use index or subscript to identify each
element or location in the memory.
▪ Hence, if we have an index of jIndex,
studMark[jIndex] would refer to the jIndexth
element in the array of studMark.
▪ For example, studMark[0] will refer to the first
element of the array.
▪ Thus by changing the value of jIndex, we could refer
to any element in the array.
▪ So, array has simplified our declaration and of course,
manipulation of the data.
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6. ARRAYS
One Dimensional Array: Declaration
▪ Dimension refers to the array's size, which is how big the
array is.
▪ A single or one dimensional array declaration has the
following form,
array_element_data_type array_name[array_size];
▪ Here, array_element_data_type define the base type of the
array, which is the type of each element in the array.
▪ array_name is any valid C / C++ identifier name that obeys
the same rule for the identifier naming.
▪ array_size defines how many elements the array will hold.
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7. ARRAYS
▪ For example, to declare an array of 30 characters, that
construct a people name, we could declare,
char cName[30];
▪ Which can be depicted as follows,
▪ In this statement, the array character can store
up to 30 characters with the first character
occupying location cName[0] and the last
character occupying cName[29].
▪ Note that the index runs from 0 to 29. In C, an
index always starts from 0 and ends with array's
(size-1).
▪ So, take note the difference between the array
size and subscript/index terms.
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8. ARRAYS
▪ Examples of the one-dimensional array declarations,
int xNum[20], yNum[50];
float fPrice[10], fYield;
char chLetter[70];
▪ The first example declares two arrays named xNum and yNum of type
int. Array xNum can store up to 20 integer numbers while yNum can
store up to 50 numbers.
▪ The second line declares the array fPrice of type float. It can
store up to 10 floating-point values.
▪ fYield is basic variable which shows array type can be declared
together with basic type provided the type is similar.
▪ The third line declares the array chLetter of type char. It can store a
string up to 69 characters.
▪ Why 69 instead of 70? Remember, a string has a null terminating
character (0) at the end, so we must reserve for it.
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9. ARRAYS
▪ Initialization of an array of type char for holding strings may take the following
form,
char array_name[size] = "string_lateral_constant";
▪ For example, the array chVowel in the previous example could have been
written more compactly as follows,
char chVowel[6] = "aeiou";
▪ When the value assigned to a character array is a string (which must be
enclosed in double quotes), the compiler automatically supplies the NULL
character but we still have to reserve one extra place for the NULL.
▪ For unsized array (variable sized), we can declare as follow,
char chName[ ] = "Mr. Dracula";
▪ C compiler automatically creates an array which is big enough to hold all the
initializer.
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10. ARRAYS
▪ Arrays allow programmers to group related items of the same
data type in one variable.
▪ However, when referring to an array, one has to specify not only
the array or variable name but also the index number of interest.
▪ Program example 1: Sum of array’s element.
▪ Notice the array's element which is not initialized is set to 0
automatically.
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11. ARRAYS
▪ Program example 2: Searching the smallest value.
▪ Finding the smallest element in the array named fSmallest.
▪ First, it assumes that the smallest value is in fSmallest[0] and
assigns it to the variable nSmall.
▪ Then it compares nSmall with the rest of the values in fSmallest,
one at a time.
▪ When an element is smaller than the current value contained in
nSmall, it is assigned to nSmall. The process finally places the
smallest array element in nSmall.
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12. ARRAYS
▪ Program example 3: Searching the biggest
value. By modifying the previous example we
can search the biggest value.
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16. ARRAYS
Two Dimensional/2D Arrays
▪ A two dimensional array has two subscripts/indexes.
▪ The first subscript refers to the row, and the second, to the column.
▪ Its declaration has the following form,
data_type array_name[1
st
dimension size][2nd
dimension size];
▪ For examples,
int xInteger[3][4];
float matrixNum[20][25];
▪ The first line declares xInteger as an integer array with 3 rows and
4 columns.
▪ Second line declares a matrixNum as a floating-point array with 20
rows and 25 columns.
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17. ARRAYS
▪ If we assign initial string values for the 2D array it will look
something like the following,
char Name[6][10] = {"Mr. Bean", "Mr. Bush", "Nicole",
"Kidman", "Arnold", "Jodie"};
▪ Here, we can initialize the array with 6 strings, each with
maximum 9 characters long.
▪ If depicted in rows and columns it will look something like the
following and can be considered as contiguous arrangement in
the memory.
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19. ARRAYS
▪ Program example 8: Swapping iIndex
(iRow) with jIndex (iColumn) in the
previous program example
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20. ARRAYS
1. Program example 9: Strings are read in by the rows.
2. Each row will have one string. Enter the following data:
“you”, “are”, “cat” for the following example.
3. Remember that after each string, a null character is
added.
4. We are reading in strings but printing out only characters.
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21. ARRAYS
▪ The contents of the array in memory after the three
strings are read in the array.
▪ Re-run the program, enter the following data:
“you”, “my”. Illustrates the content as done
previously.
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22. ARRAYS
1. Does your output agree?
2. How is the null character, '0' printed?
3. Is there a garbage character in a[1][3]? If so,
why?
a) The output matched, except the garbage.
b) Just an empty space.
c) Yes. This slot has been reserved but not
filled so whatever the previous data that
has been stored here would be displayed
(if possible).
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