There are n coins with different value in a line. Two players take turns to take one or two coins from left side until there are no more coins left. ...

There are n coins with different value in a line. Two players take turns to take one or two coins from left side until there are no more ...

There are n coins in a line. Two players take turns to take one or two coins from right side until there are no more coins left. The player ...

Coins in a Line III There are n coins in a line. Two players take turns to take a coin from one of the ends of the line until there are no more ...

There is a stone game.At the beginning of the game the player picks n piles of stones in a ci ...

Number of Islands II Given a n,m which means the row and column of the 2D matrix and an array of pair A( size k). Originally, the 2D matrix is all ...

Trapping Rain Water II Given n x m non-negative integers representing an elevation map 2d where the area of each cell is 1 x 1, compute how much ...

題目 計算兩個數組的交 注意事項 每個元素出現次數得和在數組里一樣答案可以以任意順序給出 樣例 nums1 = [1, 2, 2, 1], nums ...