Answer 2
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option c) function declaration
void ActivateBuzzer(int); is a function declaration
Answer 4
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option D)&ptr2 = ptr1;
The option D is an invalid c++ statement. & can not come in lhs of assignment statement.
Answer 8
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The code will print the address of the array i.e. address of first
element in the array. MyPtr is a int pointer and is assigned the
array name i.e address of first element.
Answer 10
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option c) is an invalid statement.
option a) ptr = x; This statement assigns the address of the double array to ptr. So ptr points to this array (specifically the first element in the array). This is valid
option b) cout << *x+3; This statement is valid. It is equivalent to (*x)+3; i.e. first element in the array x plus 3 is output using cout. So the output will be 1.5+3 = 4.5
option c) *x+3 = 12; is invalid statement. This is because the LHS should always be a variable which can be assigned to. But here *x+3 evaluates to 1.5+3 = 4.5 and this can not be assigned 12; Hence this is invalid statement.
plz solve 2 ,4,8,10 " << endl; acement display? Ans: answer= B. answer 2. cu int...
C++ 1. A?B?C?D? which one is correct 2. 3A, 3B #include<iostream> using namespace std; void swap0(int* ptri, int* ptr2) { int *temp; temp = ptr1; ptr1 = ptr2; ptr2 = temp; void swap1(int ptri, int ptr2){ int temp; temp = ptri; ptr1 = ptr2; ptr2 = temp; portion void swap2(int *&ptri, int *&ptr2){ int* temp; temp = ptr1; ptr1 = ptr2; ptr2 = temp; void swap3(int &ptri, int &ptr2) { int temp; temp = ptr1; ptr1 = ptr2; ptr2 =...
#include <iostream> using namespace std; struct node { int base=0; int power=0; }; void insert(node ptr[],int basee,int powerr) { ptr[powerr].power=powerr; ptr[powerr].base=basee; } void subtract(node ptr1[],int size1,node ptr2[],int size2,node ptr3[]) { for(int j=0;j<=size1;j++) { if(ptr1[j].base!=0) { ptr3[j].base=(ptr3[j].base)+(ptr1[j].base); ptr3[j].power=ptr2[j].power; } } for(int j=0;j<=size2;j++) { if(ptr2[j].base!=0) { ptr3[j].base=(ptr3[j].base)-(ptr2[j].base); ptr3[j].power=ptr2[j].power; } } } void addition(node ptr1[],int size1,node ptr2[],int size2,node ptr3[]) { for(int j=0;j<=size1;j++) { if(ptr1[j].base!=0) { ptr3[j].base=(ptr3[j].base)+(ptr1[j].base); ptr3[j].power=ptr2[j].power; } } for(int j=0;j<=size2;j++) { if(ptr2[j].base!=0) { ptr3[j].base=(ptr3[j].base)+(ptr2[j].base); ptr3[j].power=ptr2[j].power; } } } void display(node ptr[],int size)...
#include <iostream> using namespace std; struct node { int base; int power; }; void insert(node ptr[],int basee,int powerr) { ptr[powerr].power=powerr; ptr[powerr].base=basee; } void addition(node ptr1[],int size1,node ptr2[],int size2,node ptr3[],int size3) { for(int j=0;j<=size1;j++) { ptr3[j].base=ptr3[j].base+ptr1[j].base; } for(int j=0;j<=size2;j++) { ptr3[j].base=ptr3[j].base+ptr2[j].base; } } void display(node ptr[],int size) { if(ptr[0].base!=0) cout<<ptr[0].base<<"+"; for(int i=1; i<=size; i++) { if(ptr[i].base!=0) cout<<ptr[i].base<<"x^"<<ptr[i].power<<"+"; } } int main() { bool choice1=true; bool choice2=true; int size1,size2,base1,base2,power1,power2; cout<<"enter the max power in polynominal 1"; cin>>size1; node *a= new node[size1+1]; for(int...
C++ 1. The copy constructor is used for one the following scenarios: I. Initialize one object from another of the same type. II. Copy an object to pass it as argument to a function. III. Copy an object to return it from a function. Read the following program and answer questions (20 points) #include <iostream> using namespace std; class Line public: int getLength( void); Line( int len // simple constructor Line( const Line &obj) 1/ copy constructor Line (); //...
51. What is the output of the following code snippet? int number = 0; int ptr_num -&number ptr_num 60; number-80 cout < "ptr num << endl b, 60 c. 80 d. the address of number Answer 52. What is the output of the following code snippet? double num-0.0; double* ptr = # num = 15.0; ptr ptr 15.0 cout << num <<"ptr <<endl; a. 15 15 b. 15 30 С. 30 15 d. 30 30 Answer: 53. What is the...
Question 27 The following statement ________. cin >> *num3; stores the keyboard input in the variable num3 stores the keyboard input into the pointer num3 is illegal in C++ stores the keyboard input into the variable pointed to by num3 None of these Question 28 The following statement ________. int *ptr = new int; results in a compiler error assigns an integer less than 32767 to the variable ptr assigns an address to the variable ptr creates a new pointer...
TRUE/FALSE 1. If pl is an integer pointer variable, with the value of 1000, pl++ changes P1 to point to the memory location 1001. ANSWER: T 2. When you return a dynamic array to the freestore, you must include the number of elements in the array 3. You can assign an array to a pointer variable. 4. The size of dynamic arrays must be declared at compile time. 5. int *pl; declares a static variable. ANSWER: F ANSWER: F ANSWER:...
c language not c++ c language int mininum(int a[135) int i; int min. Question 2 (4 points) If ptr is an integer pointer and x in an integer variable then write one statement to set ptr to point to x then write another statement to increment x by 10 using ptr (not using x) (4 points) Question 3 (4 points) Saved
Trace the following program and display the exact outpust #incl udeci ostream» using namespace std const int siz-10 int ffx(Float ati,Float b(l, int s): bool ifp(int n) int mainO loat arysiz]-(6,19,5,3,2,17,40,90,19,80) float ary2tsiz)-to int i,x x-ffx(aryl,ary2, ,siz): cout<<"n The values are: for(1-0:1<" ; it) ary2[i] ; cout<<" coutくくendl ; return 0; oerio int ffx(float all,float bll, int S) int i,p-0; for(i 0: i<s ; i++){ )// end for LD++]=a[i]; return p; if(ifp(ali])) bool ifp(int n)l bool ans-true for (i=2:ic, itt)...
Make a program that will calculate and compute for the quotient of miles and gallons (mpg: miles per gallons). Your program should must ask the user to specify the size of the array (using dynamic array) for the following variable: miles ,gallons and mpg. Prompt the user to Initialize the value of miles (value for miles should be 100-250) and gallons (values should be from 5-25). Use pointer galPtr for gallons, milPtr for miles and mpgPtr for mpg. Use function...