Created
May 11, 2020 15:32
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class Solution { | |
void dfs(vector<vector<int>>& image, int sr, int sc,int newColor,int rows,int cols,int source) | |
{ | |
if(sr<0 || sr>=rows || sc<0 || sc>=cols) | |
return; | |
else if(image[sr][sc]!=source) | |
return; | |
image[sr][sc] = newColor; | |
dfs(image,sr-1,sc,newColor,rows,cols,source); //TOP | |
dfs(image,sr+1,sc,newColor,rows,cols,source); //DOWN | |
dfs(image,sr,sc-1,newColor,rows,cols,source); //LEFT | |
dfs(image,sr,sc+1,newColor,rows,cols,source); //RIGHT | |
} | |
public: | |
vector<vector<int>> floodFill(vector<vector<int>>& image, int sr, int sc, int newColor) { | |
if(newColor==image[sr][sc]) | |
return image; | |
int rows = image.size(); | |
int cols = image[0].size(); | |
int source = image[sr][sc]; | |
dfs(image,sr,sc,newColor,rows,cols,source); | |
return image; | |
} | |
}; |
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