Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do this in O(n) runtime? Example: Input: [3, 10, 5, 25, 2, 8] Output: 28 Explanation: The maximum result is ...
Since there is such an important conclusion, we can safely drop the first k/2 element in A, which are definitaly smaller than k-th element in the union of A and B. This is also true for the A[k/2-1] > B[k/2-1] condition, which we should drop the elements in B. When A[...
self.stack1.append(x)while(len(self.stack2)>0): self.stack1.append(self.stack2.pop())returndefpop(self) ->'int':""" Removes the element from in front of queue and returns that element. """returnself.stack1.pop()defpeek(self) ->'int':""" Get the front element. """returnself...
stack1.push(l1); l1=l1.next; } if(l2!=null){ stack2.push(l2); l2=l2.next; } } int a=0,b=0,carry=0,sum=0; while(!stack1.isEmpty()||!stack2.isEmpty()){ if(!stack1.isEmpty()) a=stack1.pop().val; else a=0; if(!stack2.isEmpty()) b=stack2.pop().val; else ...
Stack s2= new Stack(); ListNode result=null,t=null; while(l1!=null) { s1.push(l1); l1=l1.next; } while(l2!=null) { s2.push(l2); l2=l2.next; } while(!s1.isEmpty() && !s2.isEmpty()) { if(s1.peek().val > s2.peek().val) ...
leetcode的add two number为什么会报错stack use after scope？出现问题的情况是当两个链表的长度一样，...
0215-kth-largest-element-in-an-array.go 0217-contains-duplicate.go 0225-implement-stack-using-queues.go 0226-invert-binary-tree.go 0230-kth-smallest-element-in-a-bst.go 0234-palindrome-linked-list.go 0235-lowest-common-ancestor-of-a-binary-search-tree.go 0236-lowest-common-ancestor-of-binary...
0215-kth-largest-element-in-an-array.cpp 0217-contains-duplicate.cpp 0219-contains-duplicate-ii.cpp 0221-maximal-square.cpp 0225-implement-stack-using-queues.cpp 0226-invert-binary-tree.cpp 0230-kth-smallest-element-in-a-bst.cpp 0234-palindrome-linked-list.cpp 0235-lowest-common-ancestor-of-a...
tags: Array, Hash Table Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may not use the same element twice. ...
leetcode-167-Two Sum II-Input array is sorted 题目描述: Given an array of integers that is alreadysorted in ascending order, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the ...