After the fourth season Sherlock and Moriary have realized the whole foolishness of the battle between them and decided to continue their competitions ......
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CodeForces - 888A
You are given an array a. Some element of this array ai is a local minimum iff it is strictly less than both of its neighbours (t ......
原文链接
There are many trees forming a m * n grid, the grid starts from (1,1). Farmer Sherlock is standing at (0,0) point. He wonders how many trees ......