技巧题

2101: Bake Off

Description Davy decided to start a weekend market stal […]

Xor Sum 01字典树 hdu4825

Xor Sum Time Limit: 2000/1000 MS (Java/Others) Memor […]

D. Kuro and GCD and XOR and SUM

Kuro is currently playing an educational game about num […]

Space Golf~物理题目

Description You surely have never heard of this new pla […]