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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the declaration for a two-dimensional array with 3 rows and 4 columns?
💡 Hint: Think of the format data_type array_name[num_rows][num_columns];
Question 2
Easy
How would you access the first element in a 2D array called 'data'?
💡 Hint: Remember, array indexing starts at 0.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What will int matrix[2][3] = {{1, 2, 3}, {4, 5, 6}}; do?
- Declare a 2D array
- Initialize it with values
- Both A and B
💡 Hint: Consider both declaration and initialization parts.
Question 2
Can a two-dimensional array be accessed in a single index?
- True
- False
💡 Hint: Think about how index locations work in arrays.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a C++ program that calculates the average of all elements in a 3x3 matrix.
💡 Hint: Don’t forget to initialize your sum variable at 0!
Question 2
Create a program that takes two 2D arrays, multiplies them, and outputs the resulting matrix.
💡 Hint: Ensure to remember the logic that only certain dimensions can be multiplied together.
Challenge and get performance evaluation