Today is the 819th day of learning programming with a slightly cold rain!
Hello, everyone! This is the CSP 2024 Group J Preliminary Exam problem.
Day 819
CSP 2024 Group J Preliminary Exam
Multiple Choice Question
Question 13
Given an empty stack that supports push and pop operations. If the elements pushed onto the stack are 1, 2, 3, 4, 5, 6 in that order, where 1 is pushed first and 6 is pushed last, which of the following pop sequences is impossible? ( )
A. 6 5 4 3 2 1
B. 1 6 5 4 3 2
C. 2 4 6 5 3 1
D. 1 3 5 2 4 6
Answer: D
START OF SPRING
Explanation: This question tests the use of stacks in C++.
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25
8
AUGUST
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1
Army Day
2
9th Day of the Lunar Month
3
10th Day of the Lunar Month
4
11th Day of the Lunar Month
5
12th Day of the Lunar Month
6
13th Day of the Lunar Month
7
Beginning of Autumn
8
National Fitness Day
9
Last Days of Heat
10
17th
11
18th
12
19th
13
20th
14
21st
15
22nd
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23rd
17
24th
18
25th
19
Physician’s Day
20
27th
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28th
22
29th
23
End of Heat
24
2nd Day of the Lunar Month
25
3rd Day of the Lunar Month
26
4th Day of the Lunar Month
27
5th Day of the Lunar Month
28
6th Day of the Lunar Month
29
Qixi Festival
30
8th Day of the Lunar Month
31
9th Day of the Lunar Month
@秀米XIUMI
With a slightly cold rain
Open Wisdom Station
