inserting a 2d matrix search algo in searches folder under algorithms

algorithms/searches/2D_array_search.py

@@ -0,0 +1,23 @@
+
+#it's a searching algorithm for sorted 2D matrix and complexity O(n+m) where n is number of rows and m is number of columns
+n,m= map(int,input().split()) #taking row and column input
+arr = [[int(input()) for x in range (m)] for y in range(n)] #entering elements into the matrix
+
+k = int(input("enter the search element: "))
+flag = False
+
+i,j = 0, m-1
+#main algorithm
+while((i>=0) and (j>=0) and (i<n) and (j<m)):
+    if(arr[i][j] == k):
+        flag = True
+        break
+    elif(arr[i][j]> k):
+        j-=1
+    else:
+        i+=1
+
+if(flag):
+    print("element found")
+else:        
+    print("element not found")