Compilation and execution process in C++ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello, World!" in C++.

C++

#include <iostream>

int main() {
    std::cout << [1] << std::endl;
    return 0;
}

Drag options to blanks, or click blank then click option'

A"Hello, World!"

BHello, World!

Ccout << "Hello, World!"

Dstd::endl

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the double quotes around the text.

Using std::endl as the text to print.

The text to print must be a string literal enclosed in double quotes.

2fill in blank

medium

Complete the code to declare an integer variable named 'count' and initialize it to 10.

C++

int [1] = 10;

Drag options to blanks, or click blank then click option'

Avalue

Bcount

Cnumber

Dtotal

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name than 'count'.

Missing the semicolon at the end.

The variable name must be 'count' as requested.

3fill in blank

hard

Fix the error in the code to correctly compile and run.

C++

#include <iostream>

int main() {
    int sum = 10;
    std::cout << "Sum is: " << [1] << std::endl;
    return 0;
}

Drag options to blanks, or click blank then click option'

Asum()

Bsum;

Csum

D"sum"

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a semicolon inside the std::cout expression.

Using sum() as if it were a function.

The variable 'sum' should be used without a semicolon inside the output statement, and the statement must end with a semicolon after std::endl.

4fill in blank

hard

Fill both blanks to create a for loop that prints numbers from 1 to 5.

C++

for (int [1] = 1; [2] <= 5; ++[1]) {
    std::cout << [1] << std::endl;
}

Drag options to blanks, or click blank then click option'

Ai

Bj

Ccount

Dindex

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names in initialization and condition.

Forgetting to increment the loop variable.

The loop variable must be the same in initialization and condition to work correctly.

5fill in blank

hard

Fill all three blanks to declare a function named 'add' that takes two integers and returns their sum.

C++

int [1](int [2], int [3]) {
    return a + b;
}

Drag options to blanks, or click blank then click option'

Aadd

Ba

Cb

Dsum

Attempts:

3 left

💡 Hint

Common Mistakes

Using parameter names different from 'a' and 'b'.

Naming the function something other than 'add'.

The function name is 'add', and the parameters are 'a' and 'b' to match the return statement.