Write a C++ program to explain the null pointer
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Q: Q2: write a program to swap the values of the two variables a and b using pointer notation.
A: program to swap the value of two variables a and b using pointer
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Q: C++ write a program to swap the values of the two variables a and b using pointer notation.
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Q: Write a C code to order 10 different numbers in descending order. Take input for 10 different…
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Q1] Write a C++ program to explain the null pointer.
Q2] Write a C++ program to illustrate the relationship between the pointers and functions.
Q3] Write a C++ program to input 10 integers, store them in an array and display them and their
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- Write a C code to order 10 different numbers in descending order. Take input for 10 differentnumbers. Must use pointer type variable. Also, write a user defined function for finding the orderto complete the code.1-Write a C++ program to input elements in array and sort array elements in descending order. How to sort array in descending order in using pointers.Use function to print out the original and sorted arrays, Example Input Input size of array: 10 Input array elements: 20, 2, 10, 6, 52, 31, 0, 45, 79, 40 Output Array sorted in descending order: 79 ,52,45,40,31,20,10,6,2,06. using c++, Write a function that counts the number of times an integer t occurs in an array of integers.
- c++ the following function header is for a function thattakes two pointers to double-precision, floatingpoint numbers x and y as parameters and does notreturn a value.void exchange( double *x, double y ) Select one: True FalseWrite a C program to swap two integers you should write a function named as swap_int and it should accept arguments as pointers then it should swap integers by dereferencing those pointers. Also put Screenshot of output...And use Ubuntu software for this program.Write a C code that finds the numbers of the Fibonacci sequence in a sequence entered by the user. Note that dynamic memory functions must be used if arrays are to be used.
- Pass Array to function. Write a C++ Program: Create two arrays of size 5 and then pass those arrays to a function named merge that willmerge/combine both values of array into one single array (third array). Now, Write a description/Explanation Of this Program that, how it's working.Run the following program and answer the questions. #include <stdio.h> int main() { int a[5] = {4,16,19,12,16}; int *arr_pointer = &a[0]; *arr_pointer = a[*arr_pointer]; arr_pointer++; printf("%d\n", *arr_pointer); return 0; } 1. For each line of the main function (lines 5 through 8 in particular), consider how the variable a changes as the program progresses. Explain what the value of a is at each major line and why it has such value. (Hint: the gdb step command is very helpful for this problem).Write a c++ function named swap value which take 5 number array as argument and swap its values in reverse order.
- The following C code containts a significant error in its use of pointers. Describe this error and indicate how it can be fixed.6. use c ++ to Write a function sumDigits, that accepts a positive integer n and returns the sum of the digits in that integer; thus, sumDigits(34) would return 7 (e.g., 3+4). Use the techniques from the roman numeral problem to extract the digits.Write a C++ function that uses pointer notation only to swap the contents of two integer arrays whose size is equal to SIZE?
