C++ provides a header file, which is used for file I/ called

C++ creates dynamic variables using

Choose the correct statement to initializing two-dimensional arrays in declarations.

Which header file must be included to use the function steprecision?

Consider the following declaration:
const size_t arraysize{4}; array<int,
arraysize> a{10,20,30,40}; In this declaration, identify the:

A member of a struct can be another struct.

A one-dimensional array is an example of a structured data type.

To add the output at the end of an existing file, you can use the option:

The following program fragment __________.
#include <iostream>
using namespace std; main() { int x = 20; int *p = &x; *p=40; cout<<p<< &x; }

The following program __________.
#include <iostream>
using namespace std; void abc(int &p) { cout << p; } main() { float m = 1.23; abc(m); }

What is the output of the following C++ program?
#include <iostream>
using namespace std; main() { int a[] ={10,20,30}; int *p=&a[0]; p++; cout << *p+1; }

What is the output of the following C++ code?

int num1; int num2; int *p = &num1; p = &num2; *p = 25; num1 =num2+ 6; p = &num1; num2 = 73; *p = 47; cout << *p << " " << num1 << " " << num2 << endl;

#include <iostream>
#include <string>
using namespace std; int main(int argc, char const *argv[]) { char s1[6] = "Hello"; char s2[6] = "World"; char s3[12] = s1 + " " + s2; cout<<s3; return 0; }

#include <iostream>

#include <string> #include <algorithm> using namespace std; int main() { string s = "spaces in text"; s.erase(remove(s.begin(), s.end(), ' ' ), s.end() ) ; cout << s << endl; }

Which of the following is a correct identifier in C++?

#include<iostream.h>
int main()
{ int x = 80; int y& = x; x++; cout << x << " " << --y; return 0; }

#include<iostream>
using namespace std;
enum Ayham { a = 1, b, c }; int main() { int x = c; int& y = x; int& z = x; y = b; cout << z--; return 0; }

#include<iostream>
int main()
{ int x = 10, y = 20; int* ptr = &x; int& ref = y; *ptr++; ref++; std::cout << x << " " << y; return 0; }

#include<iostream>
int main()
{ int x = 100, y = 200; int* Ayham_s_ptr = &x; int& ref = y; (*Ayham_s_ptr)++; ref++; std::cout << x << " " << y; return 0; }

#include<iostream.h>
int main()
{ int x = 0; int &y = x; y = 5; while(x <= 5) { cout<< y++ << " "; x++; } cout<< x; return 0; }

#include<iostream>
using namespace std;
int main() { int m = 2, n = 6; int& x = m; int& y = n; m = x++; x = m++; n = y++; y = n++; cout << m << " " << n; return 0; }