Merge pull request #75 from ashish01012001/Testbranch

Added Word Break question
Google-DSC-TMSL · Oct 12, 2023 · 04b63b8 · 04b63b8
2 parents a82d5ff + 4da7481
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diff --git a/README.md b/README.md
@@ -47,14 +47,15 @@
 | Palindromic Partitioning | [GFG](https://practice.geeksforgeeks.org/problems/palindromic-patitioning4845/1?page=1&difficulty[]=2&company[]=Google&curated[]=4&sortBy=submissions) | [YouTube](https://www.youtube.com/watch?v=VOiNexeScLU) | [Python](./codes/python/Palind_Part.py) |
 | Alien Dictionary | [GFG](https://practice.geeksforgeeks.org/problems/alien-dictionary/1?page=1&difficulty[]=2&company[]=Google&sortBy=submissions) | [YouTube](https://www.youtube.com/watch?v=U3N_je7tWAs) | [Python](./codes/python/Alien_Dic.py) |
 | String To Integer | [GFG](https://www.geeksforgeeks.org/how-to-convert-a-string-to-an-int-in-java/) | [YouTube](https://www.youtube.com/watch?v=Pnaqn6GOyzU) | [Java](./codes/java/Stringtointeger.java) |
-|Maximum Length of a Concatenated String with Unique Characters | [LeetCode](https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters/) | [YouTube](https://www.youtube.com/watch?v=d4SPuvkaeoo) | [Java](./codes/java/maximum-length-of-a-concatenated-string-with-unique-characters.java) |
-|Sum of k smallest elements in BST| [GFG](https://www.geeksforgeeks.org/sum-k-smallest-elements-bst/) | [YouTube](https://www.youtube.com/watch?v=S02iWYlmyH4&t=3s) | [Python](./codes/python/Sum_of_k_smallest_elements_in_BST.py) | 
+| Maximum Length of a Concatenated String with Unique Characters | [LeetCode](https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters/) | [YouTube](https://www.youtube.com/watch?v=d4SPuvkaeoo) | [Java](./codes/java/maximum-length-of-a-concatenated-string-with-unique-characters.java) |
+| Sum of k smallest elements in BST| [GFG](https://www.geeksforgeeks.org/sum-k-smallest-elements-bst/) | [YouTube](https://www.youtube.com/watch?v=S02iWYlmyH4&t=3s) | [Python](./codes/python/Sum_of_k_smallest_elements_in_BST.py) | 
 | Regular Expression Matching | [LeetCode](https://leetcode.com/problems/regular-expression-matching/) | [YouTube](https://www.youtube.com/watch?v=HAA8mgxlov8) | [Java](./codes/java/RegularExpressionMatching.java) | 
 | Longest Valid Parentheses | [LeetCode](https://leetcode.com/problems/longest-valid-parentheses/) | [YouTube](https://www.youtube.com/watch?v=VdQuwtEd10M) | [Java](./codes/java/LongestValidParentheses.java) |
 | Rotate Image | [LeetCode](https://leetcode.com/problems/rotate-image/) | [YouTube](https://www.youtube.com/watch?v=Y72QeX0Efxw) | [Java](./codes/java/RotateImage.java) |
 | Substring with concatenation of all words | [LeetCode](https://leetcode.com/problems/substring-with-concatenation-of-all-words/) | [YouTube](https://www.youtube.com/watch?v=_MGzsJ0F8lE) | [Java](./codes/java/SubstringWithConcatenationOfAllWords.java) |
-|Largest rectangular sub-matrix having sum divisible by k| [GFG](https://www.geeksforgeeks.org/largest-rectangular-sub-matrix-sum-divisible-k/) | [YouTube](https://www.youtube.com/watch?v=_MGzsJ0F8lE) | [Python](./codes/python/largest_rectangular_sub_matrix_sum_divisbl_by_k) 
-|Combination Sum III |[LeetCode](https://leetcode.com/problems/combination-sum-iii/) |[Youtube](https://youtu.be/rP_K3WJnRR4?si=W1RUODPlWwOSvsnV) |[C++](./codes/cpp/combination_sum_iii.cpp)
+| Largest rectangular sub-matrix having sum divisible by k| [GFG](https://www.geeksforgeeks.org/largest-rectangular-sub-matrix-sum-divisible-k/) | [YouTube](https://www.youtube.com/watch?v=_MGzsJ0F8lE) | [Python](./codes/python/largest_rectangular_sub_matrix_sum_divisbl_by_k) 
+| Word Break |[LeetCode](https://leetcode.com/problems/word-break/) |[Youtube](https://youtu.be/Sx9NNgInc3A?si=tzljO1p5FRdEaAPf) |[C++](./codes/cpp/word_break.cpp)
+| Combination Sum III |[LeetCode](https://leetcode.com/problems/combination-sum-iii/) |[Youtube](https://youtu.be/rP_K3WJnRR4?si=W1RUODPlWwOSvsnV) |[C++](./codes/cpp/combination_sum_iii.cpp)
 
 <!--End here-->
 

diff --git a/codes/cpp/word_break.cpp b/codes/cpp/word_break.cpp
@@ -0,0 +1,50 @@
+#include <iostream>
+#include<vector>
+#include<set>
+#include<cstring>
+using namespace std;
+
+int dp[301];
+int help(int i,string s ,set<string>&wordDict){
+        if(i==s.size())
+            return 1;
+        string temp;
+        if(dp[i]!=-1)
+            return dp[i];
+        for(int j=i;j<s.size();j++){
+            temp+=s[j];
+            if(wordDict.find(temp)!=wordDict.end()){
+                if(help(j+1,s,wordDict)){
+                    dp[i]=1;
+                    return 1;
+                }
+            }
+        }
+        dp[i]=0;
+        return 0;
+    }
+
+bool wordBreak(string s, vector<string>& wordDict) {
+       set<string>st;
+       memset(dp,-1,sizeof dp);
+       for(int i=0;i<wordDict.size();i++){
+           st.insert(wordDict[i]);
+       }
+       return help(0,s,st);
+    }
+
+int main()
+{
+    string s;
+    cin>>s;
+    vector<string>worddict;
+    int n;
+    cin>>n;string word;
+    for(int i=0;i<n;i++){
+        cin>>word;
+        worddict.push_back(word);
+    }
+    cout<<wordBreak(s,worddict);
+    return 0;
+
+}