1. Problem 4 asks to write statements (comments) for programming tasks related to integers and their product. 2. For part a, the comment should state the requirement to calculate the product of three integers. 3. For parts b, c, and d, define variables x, y, and z as integers initialized to 0. 4. For part e, define a variable to count the number of integers input. 5. For part f, read three integers individually into variables x, y, and z. 6. For part g, display the message "The product is" followed by the value of the integer variable result. 7. Problem 5 asks for the output of a switch statement and an if-else block when grade is '1', '3', and '5'. 8. The switch statement assigns points based on grade: 'A' = 4, 'B' = 3, 'C' = 0, default = 0. 9. Since grades '1', '3', and '5' do not match any case, points will be set to 0 by the default case. 10. The if-else block prints "Pressed, points earned = 6*cdu * points" if loans > 0, else prints "Failed no points earned". 11. Without values for loans and cdu, the output depends on loans: if loans > 0, points earned = 0; else "Failed no points earned". 12. Summary of outputs: - For grade '1', '3', or '5', points = 0. - If loans > 0, output: "Pressed, points earned = 0". - If loans <= 0, output: "Failed no points earned". This explanation covers the programming comments and output reasoning for the given code.