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[LeetCode]9 Palindrome Number
https://oj.leetcode.com/problems/palindrome-number/http://fisherlei.blogspot.com/2012/12/leetcode-palindrome-number.htmlpublicclassSolution{ publicbooleanisPalindrome(intx){ //Assume //Negativenumberscannotbepalindrome if(x<0) returnfalse; //Noextrasp..
分类:其他好文   时间:2015-01-02 16:14:01    阅读次数:116
[LeetCode]11 Container With Most Water
https://oj.leetcode.com/problems/container-with-most-water/http://fisherlei.blogspot.com/2013/01/leetcode-container-with-most-water.htmlpublicclassSolution{ publicintmaxArea(int[]height){ //SolutionB: //returnmaxArea_BruteForce(height); //SolutionA: retur..
分类:其他好文   时间:2015-01-02 16:15:22    阅读次数:158
[LeetCode]12 Integer to Roman
https://oj.leetcode.com/problems/integer-to-roman/http://fisherlei.blogspot.com/2012/12/leetcode-integer-to-roman.htmlpublicclassSolution{ // //把4,9定义为特殊的字符 //从大到小适配 publicStringintToRoman(intnum){ if(num<1||num>3999) returnnull;//Inva..
分类:其他好文   时间:2015-01-02 16:14:07    阅读次数:128
[LeetCode]13 Roman to Integer
https://oj.leetcode.com/problems/roman-to-integer/http://fisherlei.blogspot.com/2012/12/leetcode-roman-to-integer.html//Symbol Value //I 1 //V 5 //X 10 //L 50 //C 100 //D 500 //M 1,000 publicclassSolution{ publicintromanToInt(Strings){ Map<Character,In..
分类:其他好文   时间:2015-01-02 16:13:57    阅读次数:163
[LeetCode]14 Longest Common Prefix
https://oj.leetcode.com/problems/longest-common-prefix/http://fisherlei.blogspot.com/2012/12/leetcode-longest-common-prefix.htmlpublicclassSolution{ publicStringlongestCommonPrefix(String[]strs) { //Validations if(strs==null||strs.length==0) return""; if(s..
分类:其他好文   时间:2015-01-02 16:13:25    阅读次数:103
[LeetCode]15 3Sum
https://oj.leetcode.com/problems/3sum/publicclassSolution{ publicList<List<Integer>>threeSum(int[]num){ //SolutionA //returnthreeSum_Sort(num); //SolutionB returnthreeSum_Map(num); } //////////////////// //SolutionA:Sort // //O(n^2) privateLi..
分类:其他好文   时间:2015-01-02 16:11:46    阅读次数:119
[LeetCode]16 3Sum Closest
https://oj.leetcode.com/problems/3sum-closest/http://fisherlei.blogspot.com/2013/01/leetcode-3sum-closest-solution.htmlpublicclassSolution{ publicintthreeSumClosest(int[]num,inttarget){ //Inputvalidations //... Arrays.sort(num); intlen=num.length; intmin..
分类:其他好文   时间:2015-01-02 16:14:25    阅读次数:116
[LeetCode]17 Letter Combinations of a Phone Number
https://oj.leetcode.com/problems/letter-combinations-of-a-phone-number/http://fisherlei.blogspot.com/2012/12/leetcode-letter-combinations-of-phone.htmlpublicclassSolution{ publicList<String>letterCombinations(Stringdigits){ if(digits==null) returnnul..
分类:其他好文   时间:2015-01-02 16:13:14    阅读次数:134
[LeetCode]19 Remove Nth Node From End of List
https://oj.leetcode.com/problems/remove-nth-node-from-end-of-list/http://fisherlei.blogspot.com/2012/12/leetcode-remove-nth-node-from-end-of.html/** *Definitionforsingly-linkedlist. *publicclassListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *nex..
分类:其他好文   时间:2015-01-02 16:12:53    阅读次数:132
[LeetCode]20 Valid Parentheses
https://oj.leetcode.com/problems/valid-parentheses/http://fisherlei.blogspot.com/2013/01/leetcode-valid-parentheses.htmlpublicclassSolution{ publicbooleanisValid(Strings) { if(s==null) returntrue; Stack<Character>stack=newStack<>(); for(charc:s..
分类:其他好文   时间:2015-01-02 16:12:14    阅读次数:99
[LeetCode]22 Generate Parentheses
https://oj.leetcode.com/problems/generate-parentheses/http://fisherlei.blogspot.com/2012/12/leetcode-generate-parentheses.htmlpublicclassSolution{ publicList<String>generateParenthesis(intn){ //SolutionB: //returngenerateParenthesis_BruteForce(n); ..
分类:其他好文   时间:2015-01-02 16:12:32    阅读次数:137
[LeetCode]23 Merge k Sorted Lists
https://oj.leetcode.com/problems/merge-k-sorted-lists/http://fisherlei.blogspot.com/2012/12/leetcode-merge-k-sorted-lists.html/** *Definitionforsingly-linkedlist. *publicclassListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *next=null; *} *} */ pu..
分类:其他好文   时间:2015-01-02 16:11:43    阅读次数:152
[LeetCode]24 Swap Nodes in Pairs
https://oj.leetcode.com/problems/swap-nodes-in-pairs/http://fisherlei.blogspot.com/2013/01/leetcode-swap-nodes-in-pairs.html/** *Definitionforsingly-linkedlist. *publicclassListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *next=null; *} *} */ publ..
分类:其他好文   时间:2015-01-02 16:12:21    阅读次数:151
[LeetCode]25 Reverse Nodes in k-Group
https://oj.leetcode.com/problems/reverse-nodes-in-k-group/http://fisherlei.blogspot.com/2012/12/leetcode-reverse-nodes-in-k-group.html/** *Definitionforsingly-linkedlist. *publicclassListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *next=null; *} ..
分类:其他好文   时间:2015-01-02 16:12:00    阅读次数:238
[LeetCode]26 Remove Duplicates from Sorted Array
https://oj.leetcode.com/problems/remove-duplicates-from-sorted-array/http://fisherlei.blogspot.com/2012/12/leetcode-remove-duplicates-from-sorted.htmlpublicclassSolution{ publicintremoveDuplicates(int[]A){ if(A==null||A.length==0) return0;//Invalidinput. ..
分类:其他好文   时间:2015-01-02 16:12:07    阅读次数:118
[LeetCode]27 Remove Element
https://oj.leetcode.com/problems/remove-element/http://fisherlei.blogspot.com/2012/12/leetcode-remove-element.htmlpublicclassSolution{ publicintremoveElement(int[]A,intelem){ //Theordercanbechanged. //Use2pointers. //Onetoiteratethearray, //Onetocopythelas..
分类:其他好文   时间:2015-01-02 16:10:11    阅读次数:129
[LeetCode]28 Implement strStr()
https://oj.leetcode.com/problems/implement-strstr/http://fisherlei.blogspot.com/2012/12/leetcode-implement-strstr.htmlpublicclassSolution{ publicintstrStr(Stringhaystack,Stringneedle){ //遍历haystack,对每一个字符,匹配needle if(haystack==null||needle==nu..
分类:其他好文   时间:2015-01-02 16:12:25    阅读次数:149
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