这是一个循环操作,如果重数太多,只能递归搜索,不满足条件return 或者else,刚才出错了public class Solution { private String letters[] = {"","","abc", "def", "ghi", "jkl", "mno", "pqr...
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其他好文 时间:
2014-07-29 11:08:26
阅读次数:
233
Typical recurrsion\DFS problem. Just take care of memory use.class Solution {public: vector> ret; void go(int currMaxN, int currK, int k, unorde...
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其他好文 时间:
2014-07-28 11:35:40
阅读次数:
240
Problem Description:
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers
sums to T.
Each number in C may only b...
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其他好文 时间:
2014-07-26 15:24:02
阅读次数:
252
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given"25525511135",return["255.2...
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其他好文 时间:
2014-07-26 00:05:16
阅读次数:
301
Given a set of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums
to T.
The same repeated number may be chosen from C unlimited numb...
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其他好文 时间:
2014-07-24 23:18:03
阅读次数:
293
一般形式:1 PROC FREQ;2 TABLES variable_combinations/options;3 /*variable_combinations4 若为单变量:TABLE variable-name;5 若为多变量: TABLE variable-name-1...
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其他好文 时间:
2014-07-24 22:47:23
阅读次数:
217
CombinationsGiven two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3.....
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其他好文 时间:
2014-07-22 22:36:54
阅读次数:
153
Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.
Input:Digit st...
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其他好文 时间:
2014-07-21 16:44:12
阅读次数:
191
Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2,3],...
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其他好文 时间:
2014-07-18 09:37:55
阅读次数:
161