0
What else can I help you with?
Given two arrays A and B Array 'A' contains all the elements of 'B' but one more element extra.Find out the extra element?
Sum(All elements in B) - Sum(All elements in A)
How can you make a array with the number 16?
If you mean how do you create an array with 16 elements, there are two ways: int a[16]; /* fixed size array of 16 integer elements */ int* b = malloc(16*sizeof(int)); /* variable length array with (initially) 16 integer elements */ Remember that variable length arrays allocated on the heap must be released as soon as they are no longer required: free (b); b=NULL;
Why array is a implicit pointer?
An array of pointers is exactly what it sounds like - one or more pointers arranged in order in memory, accessible through a common base name and indexed as needed. Philosophically, there is no difference between an array of pointers and an array of objects...int a[10]; // 10 integers, named a[0], a[1], a[2], ..., a[9]int *b[10]; // 10 pointers to int, named b[0], b[1], b[2], ..., b[9]If you initialize the array of pointers...int i;for (i = 0; i < 10; i++) b[i] = &a[i];... then *b[0] would be the same as a[0], etc.
How do we get values through pointers instead of arrays in c?
If the pointer is pointing to an array, you would do the exact same and use [], but if it weren't pointing to an array, you can use * to extract data from the pointer. eg: int a = 5; //set a to 5 int* b = &a;//set b to the address pointed by b int result = *b; //extract data b is pointing to (5) result would then be 5
How do you create a two dimentional array?
A one-dimensional array is an array where each element in the array points to a specific value of the type specified by the array (all values must be of the same type). For example, we can store integer values in an integer array, character values in a character array and strings in a string array. Multi-dimensional arrays are implemented as one-dimensional arrays where every element is itself a one-dimensional array, for as many dimensions as required. The overall size of any array (in elements) is the product of all its dimensions, thus a two-dimensional array of 4x5 elements has 20 elements in total, divided into 4 arrays of 5 elements each. However, because all the elements are allocate contiguously, any multi-dimensional array can be treated as if it were one-dimensional. Note that every element of an array must be exactly the same length, even when that element is another array. The most common type of array we use is a pointer array (an array of pointer elements). Given that a non-null pointer does not store any size information (the number of elements being referred to), we typically use null-terminated pointer arrays, where a null pointer denotes the end of the array being referred to. This makes it possible to implement "jagged" or "irregular" multi-dimensional arrays, where each dimension can be a different length. An array of variable-length strings is an example of a jagged array, such that each element points to a null-terminated character array.
Given two arrays A and B Array 'A' contains all the elements of 'B' but one more element extra.Find out the extra element?
Sum(All elements in B) - Sum(All elements in A)
How do you swap two arrays in c plus plus using string?
You can't. While a string is a character array, an array is not necessarily a string. Treating arrays as if they were strings simply to swap them is madness. The correct way to physically swap arrays A and B is to copy A to a new array, C, then copy B to A, then C to B. If the arrays are the same size this is not a problem. If they are different sizes, you can only swap them if they are dynamic (not static). This means you must reallocate them. To speed up the process, copy the smallest array to C, first. A much better approach would be to point at the two arrays and swap the pointers instead.
How 3d arrays are represented in memory?
All multi-dimensional arrays are represented as arrays of arrays. That is, each element of the array is itself an array. Thus a two-dimensional array can be thought of as being a one-dimensional array where every element is a one-dimensional array. A three-dimensional array is therefore a one-dimensional array of two-dimensional arrays. And so on. The actual memory layout of a multi-dimensional array is no different to that of a one-dimensional array of the same size: int a[12]; int b[3][4]; Assuming a 4-byte int, the amount of memory allocated to a is 12 x 4 = 48 bytes. The array b is essentially an array where each element holds an array of 4 integers, thus each element is 16 bytes in length. Given there are 3 such elements in total, the total size of b is 3 x 16 = 48 bytes, the same as was allocated to a. Although the allocations are exactly the same in terms of size, the layouts differ. The array a is an array of twelve 4-byte elements (of type int) whereas array b is an array of three 16-byte elements, each of which is itself an array of four 4-byte elements (of type int). This changes the way we refer to the individual elements of the array. Every element in an array is referred to by its offset address from the start of the array. This is determined by multiplying its zero-based index by the element size. In the case of a, every element is 4-bytes in length, thus element a[2] refers to the element that is offset 2 x 4 = 8 bytes from the start of the array. But in the case of b, however, b[2] would refer to the 16-byte element that is offset 2 x 16 = 32 bytes from the start of the array. Given that we're actually referring to an element which is itself a 4-element array, we must use a second subscript to refer to the elements of that array. Thus b[2][3] would refer to the integer that is offset 3 x 4 bytes from the start of the array referred to by b[2]. Extending this idea into three-dimensions is simply a matter of taking a third subscript into account.
How can you make a array with the number 16?
If you mean how do you create an array with 16 elements, there are two ways: int a[16]; /* fixed size array of 16 integer elements */ int* b = malloc(16*sizeof(int)); /* variable length array with (initially) 16 integer elements */ Remember that variable length arrays allocated on the heap must be released as soon as they are no longer required: free (b); b=NULL;
Why array is a implicit pointer?
An array of pointers is exactly what it sounds like - one or more pointers arranged in order in memory, accessible through a common base name and indexed as needed. Philosophically, there is no difference between an array of pointers and an array of objects...int a[10]; // 10 integers, named a[0], a[1], a[2], ..., a[9]int *b[10]; // 10 pointers to int, named b[0], b[1], b[2], ..., b[9]If you initialize the array of pointers...int i;for (i = 0; i < 10; i++) b[i] = &a[i];... then *b[0] would be the same as a[0], etc.
How you use negative index in array?
You cannot do this easily in C programming. Arrays in C always start with index 0. If you must use a negative array index, you can do that by allocating an array, and then pointing to an element within the array. Say you allocate an array 10 ints long, named a; then set b = &a[5]. Then b[-4] = a[1]. However, this is extremely bad programming practice and is almost certain to cause data corruption. Some compilers will treat array indices as unsigned, also, so that when you specify b[-4], the compiler will internally simplify that to b[65532] and your program will crash.
How do we get values through pointers instead of arrays in c?
If the pointer is pointing to an array, you would do the exact same and use [], but if it weren't pointing to an array, you can use * to extract data from the pointer. eg: int a = 5; //set a to 5 int* b = &a;//set b to the address pointed by b int result = *b; //extract data b is pointing to (5) result would then be 5
How do you create a two dimentional array?
A one-dimensional array is an array where each element in the array points to a specific value of the type specified by the array (all values must be of the same type). For example, we can store integer values in an integer array, character values in a character array and strings in a string array. Multi-dimensional arrays are implemented as one-dimensional arrays where every element is itself a one-dimensional array, for as many dimensions as required. The overall size of any array (in elements) is the product of all its dimensions, thus a two-dimensional array of 4x5 elements has 20 elements in total, divided into 4 arrays of 5 elements each. However, because all the elements are allocate contiguously, any multi-dimensional array can be treated as if it were one-dimensional. Note that every element of an array must be exactly the same length, even when that element is another array. The most common type of array we use is a pointer array (an array of pointer elements). Given that a non-null pointer does not store any size information (the number of elements being referred to), we typically use null-terminated pointer arrays, where a null pointer denotes the end of the array being referred to. This makes it possible to implement "jagged" or "irregular" multi-dimensional arrays, where each dimension can be a different length. An array of variable-length strings is an example of a jagged array, such that each element points to a null-terminated character array.
How do you write a programme in c language using arrays to store a ten integer data and find the second smallest and second largest elements in the array?
void mail ( ); { int a, b c = a+b; printf ("%d",=c); }
Given 2 int arrays a and b each length 3 return a new array length 2 containing their middle elements?
Java solutionpublic static final int[] getMiddle(final int[] a, final int[] b) {return new int[] {a[1], b[1]};}C solution void getMiddle(const int a[], const int b[], int ret[]) {ret[0] = a[1];ret[1] = b[1];}
How do you write a program to find the greatest common factor of a set of numbers?
You achieve this by putting all the values in container that allows linear traversal, such as an array. If the array has no numbers at all, the greatest common factor is 0. if the array has one number, the greatest common factor is that number. For arrays with two or more numbers, pop the last two numbers and calculate their greatest common factor, pushing the result back onto the array. Repeat until there is only one number left in the array. That number is the greatest common factor of all the original numbers. To implement this, you will need a function that can return the greatest common factor of any two values. The following shows one way to implement this function: unsigned greatest_common_factor (unsigned a, unsigned b) { while (a!=b) a>b?a-=b:b-=a; return a; }
What is an unidentified index in php?
Probably it's "Undefined Index".You must have seen it in some of the PHP notices or warnings.It comes, when you are working with arrays and the Index or Key your code is using doesn't actually exist.For Example,if you define an array:$a = array( 'a'=>'pak' , 'b' => 'asif' );having two Indexes (a & b),But later on, you code like:$a['c'];Now, c index doesn't actually existed in $a array, so a PHP warning / notice will appear on run time saying:Undefined Index 'c' ....Hope this help you!
