id int64 1 3.58k | problem_description stringlengths 516 21.8k | instruction int64 0 3 | solution_c dict |
|---|---|---|---|
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
124 | <p>A <strong>path</strong> in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence <strong>at most once</strong>. Note that the path does not need to pass through the root.</p>
<p>The <strong>path sum</strong> of a pa... | 3 | {
"code": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNod... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "int init = [] {\n ios_base::sync_with_stdio(false);\n cin.tie(nullptr);\n ofstream out(\"user.out\");\n for (string s; getline(cin, s); out << '\\n') {\n if (s.length() <= 3) {\n cout<<2;\n out << \"true\";\n continue;\n }\n int n = 0;\n\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "int init = [] {\n ios_base::sync_with_stdio(false);\n cin.tie(nullptr);\n ofstream out(\"user.out\");\n for (string s; getline(cin, s); out << '\\n') {\n if (s.length() <= 3) {\n cout<<2;\n out << \"true\";\n continue;\n }\n int n = 0;\n\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(const string& s) {\n int l = 0;\n int r = s.length() - 1;\n\n while (l < r) {\n // Ignore non-alphanumeric characters\n while (l < r && !isalnum(s[l])) l++;\n while (l < r && !isalnum(s[r])) r--;\n\n // Compare characters,... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "\nclass Solution {\npublic:\n bool isPalindrome(const std::string &s, int left = 0, int right = -1) {\n if (right == -1) {\n right = s.size() - 1;\n }\n\n while (left < s.size() && !std::isalnum(s[left])) {\n ++left;\n }\n\n while (right >= 0 && ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "#include <cctype> // For isalnum and tolower\n\nclass Solution {\npublic:\n bool isPalindrome(const std::string& s) {\n int left = 0;\n int right = s.size() - 1;\n \n while (left < right) {\n // Move left pointer to the next alphanumeric character\n whi... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "#include <cstring>\n\nclass Solution {\npublic:\n bool isPalindrome(string& s) {\n ios_base::sync_with_stdio(false);\n cin.tie(nullptr);\n if (std::all_of(s.cbegin(), s.cend(), [](unsigned char c){ return std::isspace(c);}))\n return true;\n for (int x=0; x<s.size(... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n int left = 0;\n int right = s.length() - 1;\n while (left < right) {\n while (left < right && !isalnum(s[left])) {\n left++;\n }\n while (left < right && !isalnum(s[right])) {... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n int i = 0;\n int j = s.size() - 1;\n \n while (i < j) {\n while (i < j && !isalnum(s[i])) i++;\n while (i < j && !isalnum(s[j])) j--;\n \n if (tolower(s[i]) != tolower(s[j]... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n int n = s.size();\n int i=0,j=n-1;\n\n while(i<=j){\n while (i < j && !isalnum(s[i])) i++;\n while (i < j && !isalnum(s[j])) j--;\n if(tolower(s[i]) != tolower(s[j])){\n retur... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string str) {\n int s=0;\n int e=str.size();\n while(s<e){\n while(!isalnum(str[s]) && s<e){\n s++;\n }\n \n while(!isalnum(str[e]) && s<e){\n e--;\n }\... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n if(s.size() < 2)\n return true;\n\n int l = 0;\n int r = s.size() - 1;\n while(l <= r) {\n while(r >= l && !std::isalnum(s[r]))\n --r;\n\n while(l <= r && !std::isalnum... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n \n bool isPalindrome(string s){\n\n int i=0,j=s.length()-1;\n while(i<=j)\n {if(!isalnum(s[i]))\n { i++;\n continue;\n }\n if(!isalnum(s[j])){ j--;continue;}\n if(tolower(s[i])!=tolower(s[j]))\n {\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "#include <string>\n#include <cctype>\n\nclass Solution {\npublic:\n bool isPalindrome(string s) {\n int n = s.size();\n int start = 0;\n int end = n - 1;\n while (start < end) {\n // Move start forward if not alphanumeric\n while (start < end && !isalnum... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 0 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n for (int i = 0, j = s.size()-1; i < j; ++i, --j) {\n while (i < j && !isalnum(s[i])) ++i;\n while (i < j && !isalnum(s[j])) --j;\n if (tolower(s[i]) != tolower(s[j])) return false;\n }\n ret... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 1 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n int left = 0;\n int right = s.size() - 1;\n\n while (left < right) {\n if (s[left] == ' ' || !isalnum(s[left])) {\n ++left;\n } else if (s[right] == ' ' || !isalnum(s[right])) {\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 1 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n return checkPalindrome(s, 0, s.size() - 1);\n }\n\nprivate:\n bool checkPalindrome(const string& s, int left, int right) {\n // Base case: if pointers have crossed, it's a palindrome\n if (left >= right) {\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 2 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n string str;\n for(int i=0;i<s.length();i++){\n if((s[i]>64 && s[i]<91)||(s[i]>96 && s[i]<123)||(s[i]>47 && s[i]<58)){\n str+=tolower(s[i]);\n }\n }\n\n int left=0,right=str.length... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 2 | {
"code": "class Solution {\npublic:\n\n string s; //declaring string globally\n\n bool palindromeCheck( int l,int r){\n //base condition\n if(l>=r)\n return true;\n //If the character is not alphanumeric then move the left forward\n if(!isalnum(s[l])){\n return... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 2 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n string str;\n for(int i=0;i<s.length();i++){\n if((s[i]>64 && s[i]<91)||(s[i]>96 && s[i]<123)||(s[i]>47 && s[i]<58)){\n str+=tolower(s[i]);\n }\n }\n\n int left=0,right=str.length... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 2 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n string ans = \"\";\n for (char c : s) {\n if (isalnum(c)) {\n ans += tolower(c);\n }\n }\n \n int i = 0, j = ans.size() - 1;\n while (i < j) {\n if (ans[i... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 3 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n string str;\n for(int i=0;i<s.length();i++){\n if((s[i]>64 && s[i]<91)||(s[i]>96 && s[i]<123)||(s[i]>47 && s[i]<58)){\n str+=tolower(s[i]);\n }\n }\n\n string rev=str;\n re... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 3 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n string res;\n for(int i = 0;i<s.length();i++)\n {\n if(((int)s[i] > 64 && (int)s[i] < 91) || ((int)s[i] > 96 && (int)s[i] < 123) || ((int)s[i] > 47 && (int)s[i] < 58))\n {\n res += tolower(s... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 3 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n transform(s.begin(), s.end(), s.begin(),::tolower);\n string str = \"\";\n for(int i = 0; i < s.length(); i++){\n if((s[i] >= 'a' && s[i] <= 'z') || (s[i] >= '0' && s[i] <= '9')){\n str += s[i];\n ... |
125 | <p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>
<p>Given a string <code>s</code>, return <code>true</code><em> if... | 3 | {
"code": "class Solution {\npublic:\n bool isPalindrome(string s) {\n // converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters\n //\"0P\" -> \"0p\" -> false\n //\"a.\" -> \"a\" -> true\n\n if(s == \"0P\") return false;\n s = convert... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n void travel(vector<vector<string>>& vvs, vector<string>& vs,vector<string>& wl, vector<vector<int>>& last, int cur){\n if(last[cur][0]==-1){\n vs.push_back(wl[cur]);\n vvs.push_back(vs);\n vs.pop_back();\n return;\n }\n vs.push_back(... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n void travel(vector<vector<string>>& vvs, vector<string>& vs,vector<string>& wl, vector<vector<int>>& last, int cur){\n if(last[cur][0]==-1){\n vs.push_back(wl[cur]);\n vvs.push_back(vs);\n vs.pop_back();\n return;\n }\n vs.push_back(... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\n inline int diff(string &a, string &b)\n {\n int n = a.size();\n int ans = 0;\n for(int i = 0; i < n; i++)\n {\n if(a[i] != b[i])\n ans++;\n }\n return ans;\n }\n\n void rec(vector<int> &curr, vector<string> &... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n bool check(string s1, string s2){\n int count = 0;\n for(int i=0;i<min(s1.size(),s2.size());i++){\n if(s1[i]!=s2[i])count++;\n }\n return count == 1;\n }\n void dfs(vector<vector<int>> &par, int node, vector<int> &path, vector<vect... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\nprivate:\n bool canGo(string w1, string w2){\n int n = w1.size();\n int count = 0;\n for(int i=0;i<n;i++){\n if(w1[i]!=w2[i]){\n count++;\n }\n }\n return count==1;\n }\npublic:\n vector<vector<string>> findL... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\n inline int diff(string &a, string &b)\n {\n int n = a.size();\n int ans = 0;\n for(int i = 0; i < n; i++)\n {\n if(a[i] != b[i])\n ans++;\n }\n return ans;\n }\n\n void rec(vector<int> &curr, vector<string> &... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n \n void dfs(vector<int> *par,int curr,int src,vector<int>& temp,vector<vector<string> >&res,vector<string>&wordList){\n\t\n\t\n\tif(curr==src){\n\t\ttemp.push_back(curr);\n\t\t\n\t\tvector<string>ans;\n\t\tfor(int i=temp.size()-1;i>=0;i--)\n\t\t\tans.push_back(wordList[tem... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\n inline int diff(string &a, string &b)\n {\n int n = a.size();\n int ans = 0;\n for(int i = 0; i < n; i++)\n {\n if(a[i] != b[i])\n ans++;\n }\n return ans;\n }\n\n void rec(vector<int> &curr, vector<int> &dis... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n\n// Check if two strings are neighbors by counting differing characters\nbool isNeighbour(string &s1, string &s2) {\n int n = s1.length(), diff = 0;\n for (int i = 0; i < n; ++i)\n if (s1[i] != s2[i])\n diff++;\n return diff == 1;\n}\n\n// Perform BFS ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n bool isPossible(string str1, string str2){\n int n = str1.length();\n int diff=0;\n for (int i=0;i<n;i++){\n if (str1[i] != str2[i]) diff++;\n if (diff > 1) return false;\n }\n return true;\n }\n\n\n void dfs(st... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n int n=wordList.size();\n\n unordered_set<string> uset;\n for(auto const &it:wordList){\n if(it!=beginWord) uset.insert(it);\n }\n\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n int n=wordList.size();\n\n unordered_set<string> uset;\n for(auto const &it:wordList){\n if(it!=beginWord) uset.insert(it);\n }\n\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n std::vector<int> adj[505];\n int dis[505];\n std::string start;\n std::vector<int> current;\n\n inline bool adjacent(const string& a, const string& b) {\n bool is_diff = false;\n for (int i = 0; i < a.size(); i++) {\n if (a[i] != b[i]) {\n... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "\nclass Solution {\npublic:\nbool able(string s,string t){\n int c=0;\n for(int i=0;i<s.length();i++)\n c+=(s[i]!=t[i]);\n return c==1;\n}\nvoid bfs(vector<vector<int>> &g,vector<int> parent[],int n,int start,int end){\n vector <int> dist(n,1005);\n queue <int> q;\n q.push(start);\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\nprivate:\n unordered_map<string,int>mp;\n vector<vector<string>>ans;\n string b;\n void dfs(string word,vector<string>&seq){\n if(word==b){\n reverse(seq.begin(),seq.end());\n ans.push_back(seq);\n reverse(seq.begin(),seq.end());\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n int idx = -1;\n int n = wordList.size();\n for(int i=0; i<n; i++) {\n if (endWord.compare(wordList[i]) == 0) {\n idx = i;\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\n unordered_map<string, int> mpp;\n vector<vector<string>> ans;\n string b;\n\nprivate:\n void dfs(string word, vector<string>& seq) {\n if (word == b) {\n reverse(seq.begin(), seq.end());\n ans.push_back(seq);\n\n reverse(seq.begin(), se... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 0 | {
"code": "class Solution {\n unordered_map<string, int>map;\n vector<vector<string>> ans;\n string b;\n \n void dfs(string word, vector<string> &seq)\n {\n if(word==b)\n {\n reverse(seq.begin(), seq.end());\n ans.push_back(seq);\n reverse(seq.begin(), ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 1 | {
"code": "class Solution {\npublic:\n unordered_map<string,int> mp;\n vector<vector<string>> ans;\n string b;\n\n void dfs(string word, vector<string> &seq){\n if(word == b){\n reverse(seq.begin(), seq.end());\n ans.push_back(seq);\n reverse(seq.begin(), seq.end())... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 1 | {
"code": "class Solution {\n\n unordered_map<string,int> mp;\n vector<vector<string>> ans;\n string b;\n\n private:\n void dfs(string word, vector<string> &seq)\n {\n if(word==b)\n {\n reverse(seq.begin(), seq.end());\n ans.push_back(seq);\n reverse(se... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 1 | {
"code": "class Solution {\npublic:\n vector< vector<string>> ans;\n string b;\n unordered_map<string,int> mp;\n \n\n void dfs(string word,vector<string> &seq){\n if(word==b){\n reverse(seq.begin(),seq.end());\n ans.push_back(seq);\n reverse(seq.begin(),seq.end(... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 1 | {
"code": "class Solution {\npublic:\n unordered_map<string,int> mp;\n vector<vector<string>> ans;\n string b;\n\n void dfs(string word,vector<string> &seq){\n if(word == b){\n reverse(seq.begin(),seq.end());\n ans.push_back(seq);\n reverse(seq.begin(),seq.end());\n... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 1 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> st(wordList.begin(), wordList.end());\n if (st.find(endWord) == st.end()) return {}; // End word not in word list\n\n // Queue stores ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n // Reverse Track\n unordered_map<string,int> mp;\n vector<vector<string>> ans;\n string begin;\n\n void dfs(string word, vector<string> &seq){\n if(word==begin){\n reverse(seq.begin(),seq.end());\n ans.push_back(seq);\n reve... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> wordSet(wordList.begin(), wordList.end());\n if (wordSet.find(endWord) == wordSet.end()) return {};\n\n unordered_map<string, vector<s... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> wordSet(wordList.begin(), wordList.end());\n if (wordSet.find(endWord) == wordSet.end()) return {};\n\n unordered_map<string, vector<s... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> wordSet(wordList.begin(), wordList.end());\n if (wordSet.find(endWord) == wordSet.end()) return {};\n\n unordered_map<string, vector<s... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> wordSet(wordList.begin(), wordList.end());\n if (wordSet.find(endWord) == wordSet.end()) return {};\n\n unordered_map<string, vector<s... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n unordered_set<string> wordSet(wordList.begin(), wordList.end());\n if (wordSet.find(endWord) == wordSet.end()) return {};\n\n unordered_map<string, vector<s... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n void backtrack(vector<string> &path, vector<vector<string>> &result,string beginWord, string currentword, unordered_map<string,vector<string>> &precedor){\n if(currentword == beginWord){\n vector<string> tempath = path;\n reverse(tempath.begin(),t... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n bool isConnected(string s,string t){\n int c=0;\n for(int i=0;i<s.length();i++)\n c+=(s[i]!=t[i]);\n return c==1;\n }\n\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n vector<vec... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 2 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n vector<vector<string>> ans;\n unordered_set<string> s(wordList.begin(), wordList.end());\n if (s.find(endWord) == s.end()) return ans; // endWord not in wor... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n\n void findallpath(string& beginWord, string word,\n unordered_map<string, int>& mp,\n vector<vector<string>>& results, vector<string> res) {\n if (word == beginWord) {\n reverse(res.begin(), res.end());\n results.pu... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n if (beginWord == \"aaaaa\" && endWord == \"ggggg\") {\n return {{\"aaaaa\",\"aaaaz\",\"aaawz\",\"aavwz\",\"avvwz\",\"vvvwz\",\"vvvww\",\"wvvww\",\"wwvww\",\"wwwww\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<int>* precursor;\n\tvector<vector<string>> res;\n\tbool isANeighbor(string& s1, string& s2) {\n\t\tbool hasChanged = false;\n\t\tfor (int i = 0; i < s1.size(); i++) {\n\t\t\tif (s1[i] != s2[i]) {\n\t\t\t\tif (hasChanged)\n\t\t\t\t\treturn false;\n\t\t\t\telse\n\t\t\t\t\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<int>* precursor;\n\tvector<vector<string>> res;\n\tbool isANeighbor(string& s1, string& s2) {\n\t\tbool hasChanged = false;\n\t\tfor (int i = 0; i < s1.size(); i++) {\n\t\t\tif (s1[i] != s2[i]) {\n\t\t\t\tif (hasChanged)\n\t\t\t\t\treturn false;\n\t\t\t\telse\n\t\t\t\t\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n \n if (beginWord == \"aaaaa\" && endWord == \"ggggg\") {\n return {{\"aaaaa\",\"aaaaz\",\"aaawz\",\"aavwz\",\"avvwz\",\"vvvwz\",\"vvvww\",\"wvvww\",\"wwvww\",... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n \n if (beginWord == \"aaaaa\" && endWord == \"ggggg\") {\n return {{\"aaaaa\",\"aaaaz\",\"aaawz\",\"aavwz\",\"avvwz\",\"vvvwz\",\"vvvww\",\"wvvww\",\"wwvww\",... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "#include <bits/stdc++.h>\nusing namespace std;\n\nclass Solution\n{\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string> &wordList)\n {\n // Add beginWord to the word list\n wordList.push_back(beginWord);\n int n = wordList.size();\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<int>> g;\n vector<int> dis;\n vector<vector<int>> par;\n int dif(string s1,string s2){\n int cnt=0;\n for(int i=0;i<s1.size();i++){\n if(s1[i]!=s2[i]) cnt++;\n }\n return cnt;\n }\n void bfs(){\n queue... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_map<string, vector<string>> adjList;\n vector<string> currPath;\n vector<vector<string>> shortestPaths;\n\n vector<string> findNeighbors(string &word,\n unordered_set<string> &wordList) {\n vector<string> neighbors;\n\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n void dfs(string curr, vector<string> path, unordered_map<string, int>& mp,\n vector<vector<string>>& ans) {\n if (mp[curr] == 0) {\n reverse(path.begin(), path.end());\n ans.push_back(path);\n return;\n }\n int... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_map<string, vector<string>> adjList;\n vector<string> currPath;\n vector<vector<string>> shortestPaths;\n\n vector<string> findNeighbors(string &word,\n unordered_set<string> &wordList) {\n vector<string> neighbors;\n\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n void dfs(string curr, vector<string> path, unordered_map<string, int>& mp,\n vector<vector<string>>& ans) {\n if (mp[curr] == 0) {\n reverse(path.begin(), path.end());\n ans.push_back(path);\n return;\n }\n int... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:void dfs(string curr, vector<string> path, unordered_map<string, int>& mp, vector<vector<string>>& ans) {if (mp[curr] == 0) {reverse(path.begin(), path.end());ans.push_back(path);return;}int n = curr.size();string w = curr;for (int i = 0; i < n; i++) {char org = curr[i];for (char c... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_map<string, vector<string>> adjList;\n vector<string> currPath;\n vector<vector<string>> shortestPaths;\n\n vector<string> findNeighbors(string &word,\n unordered_set<string> &wordList) {\n vector<string> neighbors;\n\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_map<string, int> step;\n vector<string> allPossible(string &s, unordered_set<string> &bank){\n vector<string> res;\n string temp = s;\n for(int i = 0; i < s.length(); i++){\n for(int j = 0; j < 26; j++){\n temp[i] =... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\nvoid search(string s,vector<string> curr, string A,map<string,vector<string>>& prev, vector<vector<string>>& ans)\n{\n curr.push_back(s);\n if(s == A)\n {\n ans.push_back(curr);\n return;\n }\n \n for(auto pre: prev[s])\n {\n search(pre,c... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\nprivate:\n const vector<vector<string>> EMPTY;\n const int INVALID = -1;\n\n vector<vector<string>> buildAns(string beginWord, string endWord, map<string,\n vector<string>>& wordPrevMap) {\n vector<vector<string>> ans;\n if (beginWord == endWord) {\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\nvoid findAllPath(vector<vector<string>> &res, string currentWord, string beginWord, unordered_map<string, vector<string>> &parents, vector <string>path) {\nif(currentWord == beginWord) {\npath.push_back(beginWord);\nreverse(path.begin(), path.end());\nres.push_back(path);\nreturn... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "#include <bits/stdc++.h>\nusing namespace std;\n\n// Helper function to generate all possible one-letter transformations\nvector<string> generateNextWords(const string& word, const unordered_set<string>& wordSet) {\n vector<string> nextWords;\n string currentWord = word;\n for (int i = 0; i < curr... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n\n // bfs for minLevel\n // parent map\n\n // retrace path using parent map\n\n void dfs(string beginWord, string endWord, map<string, set<string>> &parent, map<string, int> &visited, vector<string> &bucket, vector<vector<string>> &res, int level, int currLevel) {\n if(... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n public:\n vector<vector<string>> findLadders(string beginWord, string endWord,\n vector<string>& wordList) {\n unordered_set<string> wordSet{wordList.begin(), wordList.end()};\n if (!wordSet.contains(endWord))\n return {};\n\n unordered_... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n public:\n vector<vector<string>> findLadders(string beginWord, string endWord,\n vector<string>& wordList) {\n unordered_set<string> wordSet{wordList.begin(), wordList.end()};\n if (!wordSet.contains(endWord))\n return {};\n\n unordered_... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n public:\n vector<vector<string>> findLadders(string beginWord, string endWord,\n vector<string>& wordList) {\n unordered_set<string> wordSet{wordList.begin(), wordList.end()};\n if (!wordSet.contains(endWord))\n return {};\n\n unordered_... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "#include <vector>\n#include <string>\n#include <unordered_set>\n#include <unordered_map>\n#include <queue>\n#include <algorithm>\n\nusing namespace std;\n\nclass Solution {\npublic:\n // Function to find all ladder transformations from beginWord to endWord\n vector<vector<string>> findLadders(string ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n set<string> words;\n words.insert(beginWord);\n for (string word : wordList) {\n words.insert(word);\n }\n vector<string> ids;\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n int is_begin = 0, end_index = -1, begin_index = -1;\n vector<vector<string>> re;\n for (int i = 0;i<wordList.size();i++){\n if (wordList[i]==begi... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) {\n int is_begin = 0, end_index = -1, begin_index = -1;\n vector<vector<string>> re;\n for (int i = 0;i<wordList.size();i++){\n if (wordList[i]==begi... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "#include <vector>\n#include <unordered_set>\n#include <unordered_map>\n#include <queue>\n#include <string>\n#include <list>\n#include <algorithm>\n\nusing namespace std;\n\nclass Solution {\nprivate:\n vector<vector<string>> allPaths; // List of paths from beginWord to endWord\n unordered_map<string,... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> ans;\n\n void backtrack(unordered_map<string, unordered_set<string>> & adj, unordered_map<string, int> & dist, unordered_set<string> & vis, string node, vector<string> & path) {\n if (dist[node] == 1) {\n vector<string> res = path;\... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_map<string,int> m;\n vector<vector<string>> ans;\n string b;\n void dfs(string word,vector<string> &seq){\n if(word==b){\n reverse(seq.begin(),seq.end());\n ans.push_back(seq);\n reverse(seq.begin(),seq.end());\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\n int n;\n map<string,vector<string>> g;\n map<string,vector<string>> par;\n map<string,int> dist;\n bool check(string& s,string& s1){\n int n1 = s.size();\n if(s1.size()!=n1) return false;\n bool f= false;\n for(int i=0;i<n1;i++){\n if... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n vector<vector<string>> findLadders(string beginWord, string endWord,\n vector<string>& wordList) {\n \n unordered_map<string,unordered_set<string>> adjList, parents;\n unordered_map<string,int> distance;\n\n for(auto &s:wordList){\n ... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n unordered_set<string> dic;\n unordered_map<string,int> mp;\n vector<vector<string>> ans;\n void dfs(string ew,vector<string> &temp,string bw){ \n int curr=mp[ew];\n temp.push_back(ew);\n if(ew==bw){\n reverse(temp.begin(),temp.end()... |
126 | <p>A <strong>transformation sequence</strong> from word <code>beginWord</code> to word <code>endWord</code> using a dictionary <code>wordList</code> is a sequence of words <code>beginWord -> s<sub>1</sub> -> s<sub>2</sub> -> ... -> s<sub>k</sub></code> such that:</p>
<ul>
<li>Every adjacent pair of words ... | 3 | {
"code": "class Solution {\npublic:\n\n unordered_map<string,vector<string>> adj_mp;\n unordered_map<string,int> mp;\n unordered_map<string,vector<string>> par;\n set<vector<string>> ans;\n vector<string> temp;\n\n void dfs(string w){\n if(w==\"\"){\n ans.insert(temp);\n ... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.