摘要:
Best Approach: '4' in row 7 is encoded as "(4)7". '4' in column 7 is encoded as "7(4)". '4' in the top-right block is encoded as "0(4)2". 然后在解Sudoku S 阅读全文
摘要:
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in or... 阅读全文
摘要:
1 Given a linked list, swap every two adjacent nodes and return its head.2 3 For example,4 Given 1->2->3->4, you should return the list as 2->1->4->3.... 阅读全文