# Info & Summary

• Date: 2025-03-29
• Completion Status: A ✅ / B ✅ / C ✅ / D ❌ / E ✅ / F ❌ / G ❌
• Problem Type:

Problem	Type(s)	Data Structure / Algo	🔥 Key Insight / Mark
C	Graph	DFS/BFS/DSU	⭐🛠️🔥
D	Pairwise Pattern Check with Indexed Constraints	Simulation	⭐
E	String/Graph	DSU	🧠🌀⭐
F	Algebraic Dynamic Programming	DP/Prefix Sum	🌀
G	Tree	Matroid	🧠🌀

# Info & Summary

• Date: 2025-03-22
• Completion Status: A ✅ / B ✅ / C ✅ / D ✅ / E ❌ / F ❌ / G ❌
• Problem Type:

Problem	Type(s)	Data Structure / Algo	🔥 Key Insight / Mark
E	Bipartite graph	BFS	⭐🔥🛠️
F	Palindrome	Manacher's Algorithm	⭐🔥🛠️
G	Graph/Bipartite Graph	Simulation	🌀

# Info & Summary

• Date: 2025-02-01
• Completion Status: A ✅ / B ✅ / C ✅ / D ✅ / E ❌ / F ❌ / G ❌
• Problem Type:

Problem	Type(s)	Data Structure / Algo	🔥 Key Insight / Mark
D	Simulation	Simulation	⭐
E	DP	DP/Group DP	🧠🛠️🌀
F	K-th Largest	Priority_queue	🔥