- Read N Characters Given read4 II - Call Multiple Times
- Asteroid Collision
留神只有正+负会相遇,负+正是反方向不相遇。
辨别几种状况,正大负小,一样大,正小负大。
用Stack存储,打消就pop。
- Asteroid Collision
- Max Stack
1)用list模仿stack
2) Double Linked List + TreeMap
- Max Stack
- Product of Array Except Self
记录0的数量,和非0的其余所有数的乘积,分类探讨
- Product of Array Except Self
- Design Search Autocomplete System