Create spiralmatrix_leetcode.cpp

spiralmatrix_leetcode.cpp

@@ -0,0 +1,45 @@
+class Solution {
+public:
+    vector<int> spiralOrder(vector<vector<int>>& matrix) {
+
+        int startRow=0,endRow=matrix.size()-1,endCol=matrix[0].size()-1,startCol=0;
+        vector<int> v;
+
+        while(startRow<=endRow && startCol<=endCol){
+
+            //start row
+            for(int col=startCol;col<=endCol;col++)
+                v.push_back(matrix[startRow][col]);
+
+            //end column
+            for(int row=startRow+1;row<=endRow;row++)
+                v.push_back(matrix[row][endCol]);
+
+            //end row
+            for(int col=endCol-1;col>=startCol;col--){
+
+                //avoinding duplicate printing in row
+                if(startRow==endRow)
+                    break;
+                v.push_back(matrix[endRow][col]);
+            }
+
+            //start column
+            for(int row=endRow-1;row>=startRow+1;row--){
+
+                //avoiding duplicate printing in column
+                if(startCol==endCol)
+                    break;
+                v.push_back(matrix[row][startCol]);
+            }
+
+            //update variables to point inner spirals
+            startRow++;
+            endRow--;
+            startCol++;
+            endCol--;
+        }
+        return v;
+
+    }
+};