原创 sed 去掉所有的換行符
sed 替換所有的換行符，命令如下 echo -e "hello\nworld" | sed ':label;N;s/\n//g;b label' :label; 定位標籤，用來實現跳轉處理，名字隨便取(label),後面
2020-05-24 16:05:20
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原创 【LeetCode】63. Unique Paths II
問題描述 https://leetcode.com/problems/unique-paths-ii/#/description Follow up for “Unique Paths”: Now consider if some
2020-02-23 15:16:20
原创 【LeetCode】59. Spiral Matrix II
問題描述 https://leetcode.com/problems/spiral-matrix-ii/#/description Given an integer n, generate a square matrix fill
2020-02-23 15:16:20
1
原创 【LeetCode】74. Search a 2D Matrix
問題描述 https://leetcode.com/problems/search-a-2d-matrix/#/description Write an efficient algorithm that searches for
2020-02-23 15:16:20
原创 【LeetCode】62. Unique Paths
問題描述 https://leetcode.com/problems/unique-paths/#/description A robot is located at the top-left corner of a m x n
2020-02-23 15:16:20
原创 【LeetCode】 73. Set Matrix Zeroes
問題描述 https://leetcode.com/problems/set-matrix-zeroes/#/description Given a m x n matrix, if an element is 0, set it
2020-02-23 15:16:20
原创 【LeetCode】60. Permutation Sequence
問題描述 https://leetcode.com/problems/permutation-sequence/#/description he set [1,2,3,…,n] contains a total of n! uni
2020-02-23 15:16:20
原创 【LeetCode】56. Merge Intervals
問題描述 https://leetcode.com/problems/merge-intervals/#/description Given a collection of intervals, merge all overlap
2020-02-23 15:16:20
原创 【LeetCode】72. Edit Distance
問題描述 https://leetcode.com/problems/edit-distance/#/description Given two words word1 and word2, find the minimum nu
2020-02-23 15:16:20
原创 【LeetCode】75. Sort Colors
問題描述 https://leetcode.com/problems/sort-colors/#/description Given an array with n objects colored red, white or b
2020-02-23 15:16:20
原创 【LeetCode】69. Sqrt(x)
問題描述 https://leetcode.com/problems/sqrtx/#/description Implement int sqrt(int x). Compute and return the square roo
2020-02-23 15:16:20
原创 【LeetCode】57. Insert Interval
問題描述 https://leetcode.com/problems/insert-interval/#/description Given a set of non-overlapping intervals, insert a
2020-02-23 15:16:20
原创 【LeetCode】64. Minimum Path Sum
問題描述 https://leetcode.com/problems/minimum-path-sum/#/description Given a m x n grid filled with non-negative numbe
2020-02-23 15:16:19
原创 【TMux】複製窗口內的文本
首先創建文件：~/.tmux.conf 輸入內容： cat >> ~/.tmux.conf << EOF set-window-option -g mode-keys vi EOF 重新加載tmux配置文件： tmux sou
2019-05-10 16:59:09
原创 夏普比率計算
夏普比率的計算公式爲： sharpe  ratio=(R_p−R_f)σ_psharpe\;ratio= \frac{(R\_p - R\_f)}{σ\_p}sharperatio=σ_p(R_p−R_f) R
2019-04-29 13:44:29