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You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
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There areNgas stations along a circular route, where the amount of gas at stationiisgas[i].You have a car with an unlimited gas tank and it costscost[... 阅读全文
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Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie... 阅读全文
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Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a... 阅读全文
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This is afollow upofShortest Word Distance. The only difference is nowword1could be the same asword2.Given a list of words and two wordsword1andword2,... 阅读全文
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This is afollow upofShortest Word Distance. The only difference is now you are given the list of words and your method will be calledrepeatedlymany ti... 阅读全文
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Given a list of words and two wordsword1andword2, return the shortest distance between these two words in the list.For example,Assume that words =["pr... 阅读全文
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Given an arraynums, write a function to move all0's to the end of it while maintaining the relative order of the non-zero elements.For example, givenn... 阅读全文
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Given a string, determine if a permutation of the string could form a palindrome.For example,"code"-> False,"aab"-> True,"carerac"-> True.Hint:Conside... 阅读全文