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Bingo的深度学习杂货店

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Q63 Unique Paths II

A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).

2018-11-07

3480

Q62 Unique Paths

A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).

2018-11-07

3640

Q402 Remove K Digits

Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible.

2018-10-11

3970

Q792 Number of Matching Subsequences

Given string S and a dictionary of words words, find the number of words[i] that is a subsequence of S.

2018-10-10

3650

Q907 Sum of Subarray Minimums

Given an array of integers A, find the sum of min(B), where B ranges over every (contiguous) subarray of A.

2018-10-10

4670

从M走到N最少步数

假设一个人站在 X 轴的正半轴上，起始点在 M 点（0 <= M <= 100000），他每次可以向左走一步，向右走一步，或者走到所在坐标乘以2的位置，最终来到 N 点（0 <= N <= 100000）。问：所需的最少步数是几步？（如果不能从 M 走到 N 点，则返回 -1）

2018-10-10

7440

生成式对抗网络 GAN

生成式对抗网络 GAN 是 2014 年由 Goodfellow 提出的一种新颖的生成式模型，随后得到了快速发展。

2018-10-10

4270

Q720 Longest Word in Dictionary

Given a list of strings words representing an English Dictionary, find the longest word in words that can be built one character at a time by other words in words. If there is more than one possible answer, return the longest word with the smallest lexicographical order.

2018-08-22

2890

Q771 Jewels and Stones

You're given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in S is a type of stone you have. You want to know how many of the stones you have are also jewels. The letters in J are guara

2018-04-25

6990

Q503 Next Greater Element II

Given a circular array (the next element of the last element is the first element of the array), print the Next Greater Number for every element. The Next Greater Number of a number x is the first greater number to its traversing-order next in the array, w

2018-04-25

5400

Q171 Excel Sheet Column Number

Related to question Excel Sheet Column Title Given a column title as appear in an Excel sheet, return its corresponding column number. For example: A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28 解题思路：参考题目： Q168 Excel Sheet Column Title 此题与 Q1

2018-04-25

5390

Q168 Excel Sheet Column Title

Given a positive integer, return its corresponding column title as appear in an Excel sheet. For example: 1 -> A 2 -> B 3 -> C ... 26 -> Z 27 -> AA 28 -> AB 解题思路：这题实际上是一个数到由字母A~Z组成的26进制转化问题。可以观察到以下规律： ABCD＝A×26³＋B×26²＋C×26¹＋D＝1×26³＋2×26²＋3×26¹＋4

2018-04-25

5070

Q190 Reverse Bits

Reverse bits of a given 32 bits unsigned integer. For example： given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000). Follow up: If this function is c

2018-04-25

6030

Q160 Intersection of Two Linked Lists

Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A: a1 → a2 ↘ c1 → c2 → c3 ↗ B: b

2018-04-25

4850

Q122 Best Time to Buy and Sell Stock II

Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many transactions as you like (ie, buy one and sell one share of the stock multiple times). However,

2018-04-25

5890

Q125 Valid Palindrome

Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a palindrome. Note: Have you consider that the string might be

2018-04-25

5010

Given two binary trees, write a function to check if they are the same or not. Two binary trees are considered the same if they are structurally identical and the nodes have the same value. Example 1: Input: 1 1 / \ / \

2018-04-25

4670

Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example: Given the below binary tree and sum = 22, 5 / \ 4 8

2018-04-25

5150

Q88 Merge Sorted Array

Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2. The number of elements initializ

2018-04-25

6110

Q53 Maximum Subarray

Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,-1,2,1,-5,4], the contiguous subarray [4,-1,2,1] has the largest sum = 6. 解题思路：此题为动态规划中很经典的一个题目，具体做法是新建一个列表，记

2018-04-25

6220

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