davidnyc

摘要： s3 是用来存放sort 结果的，整个算法非常像 selection sort/bubble sort 1: 每次从s1中选出最小的一个放在s3 中，其他非最小的放入s2 中 2: 然后把s2 的数字放回到s1 中 循环结束后，s3 中的就是sort 好的结果 阅读全文

摘要： Repeatedly remove all adjacent, repeated characters in a given string from left to right.No adjacent characters should be identified in the final string.Examples"abbbaaccz" → "aaaccz" → "ccz" → "z""aa... 阅读全文

摘要： Determine if a small string is a substring of another large string.Return the index of the first occurrence of the small string in the large string.Return -1 if the small string is not a substring of ... 阅读全文