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[Sword refers to offer learning] the sum is the two numbers of a specified value, and the sword refers to offer. In the legend of the Condor Heroes, there are three swords used in the life of the 'swordsman dedicated to defeat: 'Yang once mentioned the first sword on the right, I saw two lines of small words engraved on the stone under the sword: 'fierce, invincible, the weak front of the championship

[Sword refers to Offer learning] [interview question 9: Fibonacci series], offer Fibonacci O (n) time O (1) Space implementation: Public class Test09 {/*** write a function, input n, and calculate the Fibonacci (Fibonacci) number of entries in the number of columns * @ param n Fibonacci * @ return result of nth */public static long fibonacci (int n) {// if the input is not a positive integer, 0 if (n Run

[Sword refers to Offer learning] [interview question 53: Regular Expression matching], sword refers to offer Question: implement a function to match regular expressions containing '.' and. The character '.' In the mode indicates any character, while '*' indicates that the character before it can appear any time (including 0 times ). In this question, matching means that all characters in the string match th

The sword refers to the source code of the offer series-string arrangement, and the sword refers to the offer Question 1369: String sorting time limit: 1 second memory limit: 32 MB special question: No submitted: 2432 solution: 609 question Description: enter a string, print all characters in the string in Lexicographic Order. For example, if abc is input, all the strings abc, acb, bac, bca, cab, and CBA th

[Sword refers to Offer learning] [interview question 60: print the binary tree out multiple rows], sword refers to offer Question: print a binary tree from top to bottom, print the nodes on the same layer in the order from left to right, and print a row on each layer.Solutions Use a queue to save the nodes to be printed. To print each row of a binary tree to a single row, we need two variables: one variable

[Sword refers to Offer learning] [interview question 61: print a binary tree in the alphabetic order], sword refers to offer Question: Please implement a function to print a binary tree in the font order, that is, the first line is printed from left to right, and the second layer is printed from right to left, that is, the first row is printed from left to right, the second row is printed from right to left

[Sword refers to Offer learning] [interview question 56: entry point in the central link of the linked list], offer central Question: How can I find the entry point of a linked list containing a ring?Solutions You can use two pointers to solve this problem. First, define two pointers P1 and P2 pointing to the head node of the linked list. If there are n nodes in the central part of the linked list, the poin

Sword refers to offer interview question 26-copy of complex linked list, sword refers to offer struct ComplexListNode { int m_nValue; ComplexListNode* m_pNext; ComplexListNode* m_pSibling; }; For a complex linked list with five nodes, the solid line indicates the point of the m_pNext pointer, And the dotted line indicates the point of the m_pSibling pointer. So

Sword refers to offer interview questions 19-binary tree image, sword refers to offer Question: Complete a function, input a binary tree, and the function outputs its image. Basic Idea: Each node in the tree is traversed in the previous order. If the node to be traversed has a subnode, it will exchange its two subnodes. After switching all the left and right subnodes of non-leaf nodes, the tree image i

[Sword refers to Offer learning] [interview question 63: k node of the Binary Search Tree], sword refers to offer Question: Given a binary search tree, locate the k-th node in the tree.Solutions If a binary search tree is traversed sequentially, the values of the traversal sequence are sorted progressively. You only need to traverse a binary search tree by using the Middle-order traversal algorithm, and it

[Sword refers to Offer learning] [interview question 51: Repeated numbers in the array], sword refers to offer Question: All numbers in an array with a length of n are in the range of 0 to n-1. Some numbers in the array are repeated, but I do not know how many numbers are repeated or how many times each number is repeated. Find any repeated number in the array.Example For example, if the input length is 7 i

Sword refers to Offer interview question 10 (Java edition): number of 1 in binary, and sword refers to offer Question: Please implement a function, input an integer, and output this number in binary format to represent the number of 1. For example, if 9 is expressed as binary 1001, two digits are 1. Therefore, if 9 is input, this function outputs 2. 1. solutions that may cause an endless loop This is a basi

[Sword refers to Offer] The rectangle is covered, and the sword refers to the offer rectangle.Problem description We can use a 2*1 small rectangle to overwrite a larger rectangle either horizontally or vertically.I would like to ask you to use n small rectangles of 2*1 to overwrite a large rectangle of 2 * n without overlap,How many methods are there in total?Solutions N = 1-only one rectangle is placed h

Sword refers to the motion range of the offer robot, and sword refers to the offer Robot [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/6e5207314b5241fb83f2329e89fdecc8? Rp = 4 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking Descrip

"Sword refers to offer" symmetric binary tree, "Sword refers to offer" [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/ff05d44dfdb04e1d83bdbdab320efbcb? Rp = 3 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking DescriptionImplement a fu

"Sword refers to offer": 1 + 2 + 3 +... + n, "Sword refers to offer" [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1? Rp = 3 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking DescriptionEvaluate 1 + 2 +

The "Sword refers to offer" prints a binary tree in the alphabetic order. The sword refers to offer rebuilding a binary tree. [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/91b69814117f4e8097390d107d2efbe0? Rp = 3 ru =/ta/coding-interviews qru =/ta/coding

"Sword refers to offer", "Sword refers to offer" [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/6aa9e04fc3794f68acf8778237ba065b? Rp = 2 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking DescriptionThe Number that contains only factor

The image of the Binary Tree "Sword refers to offer" and the Binary Tree "Sword refers to offer" [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/564f4c26aa584921bc75623e48ca3011? Rp = 1 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking

Stack where the sword refers to offer contains min functions and the sword refers to offer [Disclaimer: All Rights Reserved. indicate the source for reprinting. Do not use it for commercial purposes. Contact mailbox: libin493073668@sina.com] Question link: http://www.nowcoder.com/practice/4c776177d2c04c2494f2555c9fcc1e49? Rp = 1 ru =/ta/coding-interviews qru =/ta/coding-interviews/question-ranking