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Subjects>Math>Basic Math

How do you access 2D array elements by using single variable?

Anonymous

∙ 12y ago

Updated: 9/14/2023

int main()

{

int array[3][3];

int i;

for(i=0; i <9;i++)

{

printf("the element is %d\n", array[i/3][i%3]);

}

return 0;

}

Wiki User

∙ 12y ago

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Continue Learning about Basic Math

Difference between 1D array and 2D arrays?

1d array contains single row and multiple columns and 2d array contains multiple row and multiple columns. 2d array is a collection of 1d array placed one below another,while 1d array is simple a collection of elements.

What does it mean for a subscript to be out-of -bounds?

This is a type of error that usually occurs in computer programs. An array is defined in which the elements of the array are identified by one or more subscripts. Suppose you have an array which is declared to be of dimension 23. Then if the program tries to access element 26 in that array, it cannot because there is no element of the array in that position. That is when you will get this error message.

What is difference between key and index in php arrays?

A key is the name of a variable in an array ($array["key"]) and the index is the position it's at ($array = ["key" => 0], the index would be 0). Keys and indices are the same if the array is not associative though ($array = [true], the key holding the value true is named 0 and is at index 0).

What is the Use of a dollar sign in php?

the dollar sign appears before a variable/array. Essentially it just tells php that its a variable. $food = "cheese pizza"; or $myfavoritenumber = 2 ;

What does array map do in php?

The array_map function in PHP loops over each elements of the passed array(s), and runs the given function. It then returns a new array that contains the values returned by each call to the given function.

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How do you use subscripts with an array?

An array is a list of several related elements. You use the subscript to specify which element you want to access. For example, in Java you might have an array called myArray, with 10 elements (numbered from 0 to 9); myArray[3] would access the fourth element in the array. A variable may be used instead of a constant.

What is array What is difference between array and simple variable?

An array stores several values - for example, several numbers - using a single variable name. The programmer can access the individual values with a subscript, for example, myArray[0], myArray[5]. The subscript can also be a variable, for example, myArray[i], making it easy to write a loop that processes all the elements of an array, or some of them, one after another.

Is it the most efficient approach to access elements with the vector data structure?

Yes. A vector is a variable-length array but constant-time random-access is guaranteed regardless of an array's length.

What is an array and how do you create one How do you access information or elements contained in an array?

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How do you access and store the elements of array?

#include<stdio.h> #include<conio.h> int main(void) { int a[10],i;//array declaration clrscr(); printf("\n enter the elements of array"); for(i=0;i<10;i++) scanf("%d",&a[i]); printf("\n the elements you enter into the array"); for(i=0;i<10;i++) printf("%5d",a[i]); getch(); return 0; }

If structure is arraythen an individual array element can be accessed by writing a variable?

A structure is not an array. Individual array elements are accessed through a number, called a "subscript". This subscript can be a constant, or a variable, or any expression that can be evaluated to give an integer.A structure is not an array. Individual array elements are accessed through a number, called a "subscript". This subscript can be a constant, or a variable, or any expression that can be evaluated to give an integer.A structure is not an array. Individual array elements are accessed through a number, called a "subscript". This subscript can be a constant, or a variable, or any expression that can be evaluated to give an integer.A structure is not an array. Individual array elements are accessed through a number, called a "subscript". This subscript can be a constant, or a variable, or any expression that can be evaluated to give an integer.

What is single dimentional?

A single dimension array is an array with one dimension. It is a collection in memory of one or more elements of the same type. int array[100]; declares an array of int's of size 100 elements. The elements are referenced as array[0], the first one, through array[99], the last one.

What is the difference between an array element and a variable?

An array element is a specific value stored within an array data structure, identified by its position or index within the array. A variable, on the other hand, is a named storage location in a program's memory that holds a value which can be changed during program execution. Arrays can store multiple elements of the same data type, while variables typically store a single value of a specific data type.

How do you calculate array elements value?

You don't need to calculate an array element's value. An array element is a variable and like any variable you can access its value directly. There is nothing to calculate: int a[5] {0, 2, 4, 6, 8}; int x = a[2]; // x=4 The only thing that really needs calculating is the index of the element you wish to access. If you know the index, then there's nothing to calculate.

How you pass array elements to a function?

Passing array elements to a function is achieved by passing the individual elements by reference or by value, just as you would any other variable. However, passing the entire array requires that you pass a pointer-to-pointer to the array along with the dimension(s) of the array.

How can you find the length of a single dimensional array in BlueJ?

array.length will return the number of elements in array.

How do you read data from array?

Use the array suffix operator [] to access the individual elements of an array through a zero-based index.

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