# Info & Summary

• Date: 2024-08-17
• Completion Status: A ✅ / B ✅ / C ✅ / D ✅ / E ❌ / F ❌ / G ❌
• Problem Type:

Problem	Type(s)	Data Structure / Algo	🔥 Key Insight / Mark
D	Prefix Sum	Prefix Sum	⭐🔥
E	Function Exponentiation	Binary Lifting/Doubling	🧠🛠️🌀
F	determine if two sets are equal	Zobrist Hash	🌀
G	Math	XOR convolution & Hadamard transform	🌀