Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Hello, could you help with this c++ programming question? Thanks!

Transcribed Image Text:Description: For this assignment, you will write a program with an array of 10 values collected from the user. Pass the array to a function and multiple the values by their index. Store the product in a new array and display the value. See the sample test data for examples.
Transcribed Image Text:Your array must contain 10 elements. Collect these from the user. Print the original array to the console. Create a function and pass the original array to it as a parameter. Multiple the values of the original array by their index and store the product in an array local to your function. Print the second array (with the multiplied values) to the console.
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I tried to run this program and it came up with this error do you know why?

[画像:The image displays a C++ code editor with a snippet of code illustrating how to work with arrays and functions. Below is a transcription and an explanation of the key elements from the code and error messages present in the text editor. ### Transcription of the Code: ```cpp #include <iostream> using namespace std; void func(int a[], int len) { int b[len]; for (int i = 0; i < len; i++) { b[i] = a[i]; } for (int i = 0; i < len; i++) { cout << b[i] << " "; } } int main() { int arr[10]; cout << "Enter the 10 elements of array:" << endl; for (int i = 0; i < 10; i++) { cin >> arr[i]; } cout << "The original array is:" << endl; for (int j = 0; j < 10; j++) { cout << arr[j] << " "; } } ``` ### Error Messages and Descriptions: 1. **C2131 (Error)** - **Description:** Expression must have a constant value. The parameter `len` (declared at line 4) cannot be used as a constant. 2. **C2466 (Error)** - **Description:** Array type 'b[len]' is not assignable because the size is not constant. 3. **C4552 (Warning)** - **Description:** The result of the expression is not used. ### Explanation of Issues: - **Dynamic Array Declaration in C++:** - The code attempts to declare a local array `b` inside the `func` function using a variable length array (VLA) `int b[len];`. Standard C++ does not support VLAs — the size of the array should be a compile-time constant. - **Resolving the Issues:** - To fix these errors, consider using a data structure like `std::vector` or dynamically allocate memory using `new` or `malloc()` if the length of the array is determined at runtime. ### Educational Points: - **Array Declaration:** Highlight the importance of using fixed sizes or dynamic allocation in C++. - **Fixing Errors:** Encourage using modern C++ practices such as utilizing vectors for flexibility in handling arrays. - **Importance of Error]
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Transcribed Image Text:The image displays a C++ code editor with a snippet of code illustrating how to work with arrays and functions. Below is a transcription and an explanation of the key elements from the code and error messages present in the text editor. ### Transcription of the Code: ```cpp #include <iostream> using namespace std; void func(int a[], int len) { int b[len]; for (int i = 0; i < len; i++) { b[i] = a[i]; } for (int i = 0; i < len; i++) { cout << b[i] << " "; } } int main() { int arr[10]; cout << "Enter the 10 elements of array:" << endl; for (int i = 0; i < 10; i++) { cin >> arr[i]; } cout << "The original array is:" << endl; for (int j = 0; j < 10; j++) { cout << arr[j] << " "; } } ``` ### Error Messages and Descriptions: 1. **C2131 (Error)** - **Description:** Expression must have a constant value. The parameter `len` (declared at line 4) cannot be used as a constant. 2. **C2466 (Error)** - **Description:** Array type 'b[len]' is not assignable because the size is not constant. 3. **C4552 (Warning)** - **Description:** The result of the expression is not used. ### Explanation of Issues: - **Dynamic Array Declaration in C++:** - The code attempts to declare a local array `b` inside the `func` function using a variable length array (VLA) `int b[len];`. Standard C++ does not support VLAs — the size of the array should be a compile-time constant. - **Resolving the Issues:** - To fix these errors, consider using a data structure like `std::vector` or dynamically allocate memory using `new` or `malloc()` if the length of the array is determined at runtime. ### Educational Points: - **Array Declaration:** Highlight the importance of using fixed sizes or dynamic allocation in C++. - **Fixing Errors:** Encourage using modern C++ practices such as utilizing vectors for flexibility in handling arrays. - **Importance of Error
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I tried to run this program and it came up with this error do you know why?

[画像:The image displays a C++ code editor with a snippet of code illustrating how to work with arrays and functions. Below is a transcription and an explanation of the key elements from the code and error messages present in the text editor. ### Transcription of the Code: ```cpp #include <iostream> using namespace std; void func(int a[], int len) { int b[len]; for (int i = 0; i < len; i++) { b[i] = a[i]; } for (int i = 0; i < len; i++) { cout << b[i] << " "; } } int main() { int arr[10]; cout << "Enter the 10 elements of array:" << endl; for (int i = 0; i < 10; i++) { cin >> arr[i]; } cout << "The original array is:" << endl; for (int j = 0; j < 10; j++) { cout << arr[j] << " "; } } ``` ### Error Messages and Descriptions: 1. **C2131 (Error)** - **Description:** Expression must have a constant value. The parameter `len` (declared at line 4) cannot be used as a constant. 2. **C2466 (Error)** - **Description:** Array type 'b[len]' is not assignable because the size is not constant. 3. **C4552 (Warning)** - **Description:** The result of the expression is not used. ### Explanation of Issues: - **Dynamic Array Declaration in C++:** - The code attempts to declare a local array `b` inside the `func` function using a variable length array (VLA) `int b[len];`. Standard C++ does not support VLAs — the size of the array should be a compile-time constant. - **Resolving the Issues:** - To fix these errors, consider using a data structure like `std::vector` or dynamically allocate memory using `new` or `malloc()` if the length of the array is determined at runtime. ### Educational Points: - **Array Declaration:** Highlight the importance of using fixed sizes or dynamic allocation in C++. - **Fixing Errors:** Encourage using modern C++ practices such as utilizing vectors for flexibility in handling arrays. - **Importance of Error]
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Transcribed Image Text:The image displays a C++ code editor with a snippet of code illustrating how to work with arrays and functions. Below is a transcription and an explanation of the key elements from the code and error messages present in the text editor. ### Transcription of the Code: ```cpp #include <iostream> using namespace std; void func(int a[], int len) { int b[len]; for (int i = 0; i < len; i++) { b[i] = a[i]; } for (int i = 0; i < len; i++) { cout << b[i] << " "; } } int main() { int arr[10]; cout << "Enter the 10 elements of array:" << endl; for (int i = 0; i < 10; i++) { cin >> arr[i]; } cout << "The original array is:" << endl; for (int j = 0; j < 10; j++) { cout << arr[j] << " "; } } ``` ### Error Messages and Descriptions: 1. **C2131 (Error)** - **Description:** Expression must have a constant value. The parameter `len` (declared at line 4) cannot be used as a constant. 2. **C2466 (Error)** - **Description:** Array type 'b[len]' is not assignable because the size is not constant. 3. **C4552 (Warning)** - **Description:** The result of the expression is not used. ### Explanation of Issues: - **Dynamic Array Declaration in C++:** - The code attempts to declare a local array `b` inside the `func` function using a variable length array (VLA) `int b[len];`. Standard C++ does not support VLAs — the size of the array should be a compile-time constant. - **Resolving the Issues:** - To fix these errors, consider using a data structure like `std::vector` or dynamically allocate memory using `new` or `malloc()` if the length of the array is determined at runtime. ### Educational Points: - **Array Declaration:** Highlight the importance of using fixed sizes or dynamic allocation in C++. - **Fixing Errors:** Encourage using modern C++ practices such as utilizing vectors for flexibility in handling arrays. - **Importance of Error
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