Today is the 853rd day of learning programming with the cool rain!
Hello, everyone! This is the problem from the CSP-J2025 Preliminary Round.
Day 853


CSP2025-J Preliminary Round
Problem 3

Answer: B
START OF SPRING
The problem tests the use of recursive functions


20
25
9

SEPTEMBER
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
1
10th
2
11th
3
Victory of the War of Resistance
Memorial Day
4
13th
5
14th
6
Ghost Festival
7
White Dew
8
17th
9
18th
10
Teachers’ Day
11
20th
12
21st
13
22nd
14
23rd
15
24th
16
25th
17
26th
18
September 18 Incident
19
28th
20
29th
21
30th
22
August
23
Autumn Equinox
Harvest Festival
24
3rd
25
4th
26
5th
27
6th
28Class
7th
29
8th
30
Martyrs’ Memorial Day
@Xiumi
Cool Rain
Open Wisdom Station
