oppo find 5试玩engadget# PDA - 掌中宝
d*o
1 楼
给一个matrix，每个element给的值代表高度。问这个matrix能
for example:
3 6 7 8 9
5 3 1 2 6
6 3 0 2 5
4 2 3 3 2
The water should be (3-1) + (3-0) + (3-2) + (3-2) = 7.
for example:
3 6 7 8 9
5 3 1 2 6
6 3 0 2 5
4 2 3 3 2
The water should be (3-1) + (3-0) + (3-2) + (3-2) = 7.
