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Author: Rhariharan08

searches/Peak_Element_on_2D.py

@@ -0,0 +1,33 @@
+def find_peak_util(matrix, left, right, row_count):
+    mid_col = (left + right) // 2
+    
+    max_row_index = 0
+    for i in range(row_count):
+        if matrix[i][mid_col] > matrix[max_row_index][mid_col]:
+            max_row_index = i
+            
+
+    if (mid_col == 0 or matrix[max_row_index][mid_col] >= matrix[max_row_index][mid_col - 1]) and \
+       (mid_col == len(matrix[0]) - 1 or matrix[max_row_index][mid_col] >= matrix[max_row_index][mid_col + 1]):
+        return matrix[max_row_index][mid_col]
+    
+
+    if mid_col > 0 and matrix[max_row_index][mid_col - 1] > matrix[max_row_index][mid_col]:
+        return find_peak_util(matrix, left, mid_col - 1, row_count)
+
+    return find_peak_util(matrix, mid_col + 1, right, row_count)
+
+def find_peak(matrix):
+    if not matrix or not matrix[0]:
+        return None
+    return find_peak_util(matrix, 0, len(matrix[0]) - 1, len(matrix))
+
+matrix = [
+    [10, 8, 10, 10],
+    [14, 13, 12, 11],
+    [15, 9, 11, 21],
+    [16, 17, 19, 20]
+]
+
+peak = find_peak(matrix)
+print(f"Peak element is: {peak}")