Given a C++ program, remove comments from it. The program source is an array where source[i] is the i-th line of the source code. This represents ...
Given several boxes with different colors represented by different positive numbers.You may experience several rounds to remove boxes until there is no box left. Each time you can choose some continu ...
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Given a C++ program, remove comments from it. The program source is an array where source[i] is the i-th line of the source code. This represents ...
Start from integer 1, remove any integer that contains 9 such as 9, 19, 29... So now, you will have a new integer sequence ...
Given a string which contains only lowercase letters, remove duplicate letters so that every letter appear once and only once. You must make sure ...
Given an array nums and a value val, remove all instances of that value in-place and return the new length. Do not allocate extra space ...
Given a string which contains only lowercase letters, remove duplicate letters so that every letter appear once and only once. You must make sure ...
Remove all elements from a linked list of integers that have value val. Example Given: 1 --> 2 --> 6 --> 3 --> 4 --> 5 --> ...
Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may ...
Given a sorted linked list, delete all duplicates such that each element appear only once. Example 1: Example 2: 这道题让我们移除给定有序链表的重复项 ...