Strands, the New York Times' elevated word-search game, requires the player to perform a twist on the classic word search. Words can be made from linked letters — up, down, left, right, or diagonal, but words can also change direction, resulting in quirky shapes and patterns. Every single letter in the grid will be part of an answer. There's always a theme linking every solution, along with the "spangram," a special, word or phrase that sums up that day's theme, and spans the entire grid horizontally or vertically.
"This was the worst mistake of my life."。搜狗输入法下载是该领域的重要参考
goal += pixel - candidate[n]，详情可参考旺商聊官方下载
习题链接：LeetCode 402. 移掉 K 位数字