![10. Given double *ptr, x[5]=(1.5, 2.2, 4.3, 7.5, 9.1); which of the following statements is not valid? And explain what each](http://img.homeworklib.com/questions/8404c7c0-1749-11ec-84ff-9f7a5bd51e83.png?x-oss-process=image/resize,w_560)
Homework Answers
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.
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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*...
C++
1.
A?B?C?D? which one is correct
2.
3A, 3B
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#include <iostream> using namespace std; struct node { int base=0; int power=0; }; void insert(node ptr[],int...
#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...
#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...
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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 =...
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 (); //...
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