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class Solution { | |
private: | |
vector<string> strDic = {"", "", "abc", "def", "ghi","jkl", "mno","pqrs", "tuv", "wxyz"}; | |
vector<string> finalVec; | |
public: | |
vector<string> letterCombinations(string digits) { | |
int len_d = digits.length(); | |
for(int i = 0; i < len_d; i++){ | |
int index = digits[i] - '0'; |
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/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
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/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
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vector<string>res; | |
class Solution { | |
public: | |
void choose(string prix,int left,int right,int times,int num){ | |
if(times==num){ | |
string temp =prix+")"; | |
res.push_back(temp); | |
return; | |
} | |
if(left<num/2){ |
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class Solution { | |
public: | |
vector<string> generateParenthesis(int n) { | |
vector<string> res; | |
if(n == 0) | |
res.push_back(""); | |
else{ | |
for(int left = 0; left < n; left++){ | |
vector<string> tempL = generateParenthesis(left); | |
for(int i = 0; i< tempL.size(); i++){ |
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/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Definition for singly-linked list. | |
* struct ListNode { | |
* int val; | |
* ListNode *next; | |
* ListNode(int x) : val(x), next(NULL) {} | |
* }; | |
*/ | |
class Solution { | |
public: |