You are given a?0-indexed?m x n?integer matrix?grid. The width of a column is the maximum?length?of its integers.

• For example, if?grid = [[-10], [3], [12]], the width of the only column is?3?since?-10?is of length?3.

Return?an integer array?ans?of size?n?where?ans[i]?is the width of the?ith?column.

The?length?of an integer?x?with?len?digits is equal to?len?if?x?is non-negative, and?len + 1?otherwise.

?

Example 1:

Input: grid = [[1],[22],[333]]

Output: [3]

Explanation: In the 0th column, 333 is of length 3.

Example 2:

Input: grid = [[-15,1,3],[15,7,12],[5,6,-2]]

Output: [3,1,2]

Explanation: In the 0th column, only -15 is of length 3. In the 1st column, all integers are of length 1. In the 2nd column, both 12 and -2 are of length 2.

?

Constraints:

• m == grid.length

• n == grid[i].length

• 1 <= m, n <= 100

• -109?<= grid[r][c] <= 109

其實(shí)用字符串自帶的length函數(shù)最快了，所以我是轉(zhuǎn)成字符串，求出來對(duì)應(yīng)的值，然后返回的

Runtime:?6 ms, faster than?100.00%?of?Java?online submissions for?Find the Width of Columns of a Grid.

Memory Usage:?44.1 MB, less than?100.00%?of?Java?online submissions for?Find the Width of Columns of a Grid.