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What is the output of the following C++ code?
#include<iostream>
using namespace std;
int x = 1;
int main()
{
int x = 2;
{
int x = 3;
cout << ::x << endl;
}
return 0;
}
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- What is the output of this C++ program: #include <iostream> using namespace std; class Test { int x; }; int main() { Test t; t.x = 6; cout << t.x; return 0; } 6 0 compiler error random valuePredict the output of the C++ code given below: #include using namespace std; int main() { int a = 5; int *b = &a; cout<<*b + a; return 0; }in this C++ code program below fix all bugs or mistakes in code and explain in comments what was wrong and how you fix it (there can be problems with semi-columns, curly braces, included libraries, wrong usage of functions, inproper conversion of datatypes and etc.) #include <iostream>#include <math>use namespace std;/*print sinus of c*/int main{int c='4';cout<<"Sinus is "<<sinus(c);return ;}
- Language:C++ Please explain how the source code works: #include<iostream> using namespace std; int main(void) { char var[] = { 'x', 'y', 'z', 'w' }; cout << "Enter the number of variables in the equations: "; int n; cin >> n; cout << "\nEnter the coefficients of each variable for each equations"; cout << "\nax + by + cz + ... = d"; int mat[n][n]; int constants[n][1]; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { cin >> mat[i][j]; } cin >> constants[i][0]; } cout << "Matrix representation is: "; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { cout << " " << mat[i][j]; } cout << " " << var[i]; cout << " = " << constants[i][0]; cout << "\n"; } return 0; }#include using namespace std; int main() int x=1,y=2; for (int i=0; i<3; i++) e{ x=x*y; 8{ } cout<Declare a vector of integers in C++ named vec and initialize the vector to 10, 20, 30, 40, and 50. Modify the first element of the vector to be 100 and modify the last element to be 1000. The resulting vector should then be 100, 20, 30, 40, and 1000. Using cout statements, display the resulting vector to the terminal.Programming technique exercise Question 1). Write a complete C++ program that helps the teacher to calculate the result of students in the test of Programming Technique. The program should perform the following tasks: • Write a function named getinput. This is a non-returning function. It takes the score of question 1, score of question 2, and score of question 3 as input parameters. the function should ask the user to enter the score (per 100) for each question. It sends all the values entered by the user in (c) back to the calling module through the use of reference parameters. • Write a function named dispTier. This is a non-returning function. It takes the total marks as an input parameter. The function should display the tier based on the conditions. Tier 3 = below 40%, tier 2 = below75%, tier 1=75% and above • Write a function named calcAverage. I It takes the number of students and total marks as input parameters.asst. Lec. Sura Nasser Object-Oriented Programming LAB. 2 4- What is the output of the following segment c++ codes: A- #include using namespace std; int main () for(int a=10 ; a>0; a--) Cout using namespace std; int main () for(int a=8; a>=2; a--) if (a% 2==0) cout<<"++++"<For C++ Here's the Lab Template: //Include statements#include <iostream>#include <string> using namespace std; //Global declarations: Constants and type definitions only -- no variables //Function prototypes int main(){ //In cout statement below substitute your name cout << "Your name" << endl << endl; //Variable declarations //Program logic //Closing program statements system("pause"); return 0;} //Function definitionsRecommended textbooks for youDatabase System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSONC How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag…Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill EducationDatabase System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSONC How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag…Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education