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Chapter 3: Problem 34

include ; using namespace std; main { int number1, number2; cout << "Enter two nu… # Each of the following programs has some errors. Locate as many as you can. #include ; using namespace std; main { int number1, number2; cout << "Enter two numbers and I will multiply\n" cout << "them by 50 for you.\n" cin >> number1 >> number2; number1 =* 50; number2 =* 50; cout << number1 << " " << number2; return 0; }

Short Answer

Expert verified
Answer: The purpose of the corrected C++ program is to multiply two user-inputted numbers by 50 and display the results. The program works by first prompting the user to enter the two numbers, reading the input using cin, then multiplying each number by 50 using the multiplication assignment operator (*=), and finally displaying the results using cout statements.

Step by step solution

01

1. Correct the #include statement and main function declaration

The #include statement should not have a semicolon, and the main function declaration should have "int" as the return type and proper parentheses. Corrected code: ```cpp #include using namespace std; int main() ```
02

2. Add semicolon after the first cout statement

The first cout statement is missing a semicolon at the end. Also, we can use endl to move to the next line instead of using "\n". Corrected code: ```cpp cout << "Enter two numbers and I will multiply" << endl ```
03

3. Add semicolon after the second cout statement

The second cout statement is also missing a semicolon at the end. Add the semicolon after the statement. Corrected code: ```cpp cout << "them by 50 for you." << endl; ```
04

4. Correct the multiplication assignment operators

The multiplication assignment operators are written incorrectly. Replace '=*' with '*='. Corrected code: ```cpp number1 *= 50; number2 *= 50; ```
05

5. Add endl to the final cout statement

For better readability, add endl to separate the final output from the next command prompt. Corrected code: ```cpp cout << number1 << " " << number2 << endl; ```
06

6. Assemble the corrected code

Put all the corrected code parts together to get the complete, corrected C++ program. Final corrected code: ```cpp #include using namespace std; int main() { int number1, number2; cout << "Enter two numbers and I will multiply" << endl; cout << "them by 50 for you." << endl; cin >> number1 >> number2; number1 *= 50; number2 *= 50; cout << number1 << " " << number2 << endl; return 0; } ```

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