Today marks the 899th day of learning programming with the cool drizzle!
Hello, everyone! This is the test for GESP202509 Level 2.
Day 899
GESP202509 Level 2
Multiple Choice Question
Question 11
Question 11: The following C++ code is used to record the maximum and minimum of multiple input numbers (input -999 to end input). Which of the following statements is incorrect?
A. If the first number input is -999, the output will be -999 -999
B. During the input process, if the first number input is not -999, and if there is no -999 in the subsequent inputs, the program can determine the maximum and minimum of the input integers
C. If used for inputting exam scores, where -999 cannot be a score, the program can determine the highest and lowest scores among the inputted scores
D. The statement can be moved to cin >> now_num; below while (now_num != -999) {, and the result will remain unchanged
Answer: D
START OF SPRING
Solution:This question tests the while loop.
This question refers to moving cin to the first line of the loop body on line 11. If a number greater than 0 is input outside the loop, and -999 is input for the first time in the loop, -999 will participate in the calculation and may be considered the minimum value, but -999 itself is not a valid number. This will lead to incorrect results.
20
25
11
NOVEMBER
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