minor fix

Author: jiahuiiiii

docs/_pages/ysc.md

@@ -174,9 +174,8 @@ A scope of the YSC syllabus can be found [here](https://docs.google.com/document
 
 The below are the Sample Problem Sets.
 
-- [YSC Sample Problem Set (Senior)](</assets/files/ysc/YSC_Sample_Problem_Set_(Senior)>)
-- [YSC Sample Problem Set (Junior)](</assets/files/ysc/YSC_Sample_Problem_Set_(Junior)>)
-
+- [YSC Sample Problem Set (Senior)](</assets/files/ysc/YSC_Sample_Problem_Set_(Senior).pdf>)
+- [YSC Sample Problem Set (Junior)](</assets/files/ysc/YSC_Sample_Problem_Set_(Junior).pdf>)
 
 The below contains Problems and Answers of previous YSC's.
 
@@ -186,12 +185,6 @@ The below contains Problems and Answers of previous YSC's.
 - [YSC 2024 Prelim (Senior) - Problems & Answers](</assets/files/ysc/YSC_2024_Prelim_(Senior)_Problems_&_Answers.pdf>)
 - [YSC 2024 Prelim (Junior) - Problems & Answers](</assets/files/ysc/YSC_2024_Prelim_(Junior)_Problems_&_Answers.pdf>)
 
-### 2024
-- [YSC 2024 Final (Senior) - Problems & Answers](</assets/files/ysc/YSC_2024_Final_(Senior)_Problems_&_Answers.pdf>)
-- [YSC 2024 Final (Junior) - Problems & Answers](</assets/files/ysc/YSC_2024_Final_(Junior)_Problems_&_Answers.pdf>)
-- [YSC 2024 Prelim (Senior) - Problems & Answers](</assets/files/ysc/YSC_2024_Prelim_(Senior)_Problems_&_Answers.pdf>)
-- [YSC 2024 Prelim (Junior) - Problems & Answers](</assets/files/ysc/YSC_2024_Prelim_(Junior)_Problems_&_Answers.pdf>)
-
 ### 2023
 - [YSC 2023 Final - Problems & Answers](</assets/files/ysc/YSC_2023_Final_Problems_&_Answers.pdf>)
 - [YSC 2023 Prelim - Problems & Answers](</assets/files/ysc/YSC_2023_Prelim_Problems_&_Answers.pdf>)