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Word Search C++ #222

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30 changes: 30 additions & 0 deletions C++/Word_Search.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
class Solution {
public:

bool dfs(vector<vector<char>>& board,int i,int j,int count,string word)
{
if(count==word.length())
return true;
if(i<0||i>=board.size()||j<0||j>=board[i].size()||board[i][j]!=word[count])
return false;

char temp = board[i][j];
board[i][j]=' ';
bool found = dfs(board,i+1,j,count+1,word)||dfs(board,i,j+1,count+1,word)||dfs(board,i-1,j,count+1,word)||dfs(board,i,j-1,count+1,word);
board[i][j]=temp;
return found;
}

bool exist(vector<vector<char>>& board, string word) {

for(int i=0;i<board.size();i++)
{
for(int j=0;j<board[i].size();j++)
{
if(board[i][j]==word[0]&& dfs(board,i,j,0,word))
return true;
}
}
return false;
}
};
3 changes: 2 additions & 1 deletion README.md
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Expand Up @@ -492,7 +492,8 @@ DISCLAIMER: This above mentioned resources have affiliate links, which means if
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