xinyu04

摘要： Given two strings word1 and word2, return the minimum number of steps required to make word1 and word2 the same. In one step, you can delete exactly o 阅读全文

摘要： Given two strings text1 and text2, return the length of their longest common subsequence. If there is no common subsequence, return 0. A subsequence o 阅读全文

摘要： Person x and y have the following conversation: x: I forgot how old your three kids are. y: The product of their ages is 36. x: I still don't know the 阅读全文

摘要： You need to warm milk in a baby bottle from its initial temperature of 15 degrees centigrade to 25 degrees. You put the bottle in a pot of boiling wat 阅读全文

摘要： Given an integer array nums, return the number of longest increasing subsequences. Notice that the sequence has to be strictly increasing. Solution 我们 阅读全文

摘要： Given an integer array nums, return the length of the longest strictly increasing subsequence. A subsequence is a sequence that can be derived from an 阅读全文

摘要： Two brothers share a flock of x sheep. They take the sheep to the market and sell each sheep for x. At the end of the day they put the money from the 阅读全文

摘要： A dart is thrown at a circular dart board of radius one. The dart can land at any place on the dartboard with equal probability. What is the mean dist 阅读全文

摘要： While three wise men are asleep under a tree a mischievous boy paints their foreheads red. Later they all wake up at the same time and all three start 阅读全文

摘要： An ant and a blind spider are on opposite corners of a cube. The ant is stationary and the spider moves at random from one corner to another along the 阅读全文