Added linear search in python

Author: siddhi-244

Searching Algorithms/linear_search.py

@@ -0,0 +1,26 @@
+#Linear Search in python 
+#Linear Search is one of the easiest searching algorithm. The main aim of a searching algorithm is to search for a desired element in the whole array. Linear Search sequentially searches for an element in an array.
+#algorithm 
+#In Linear Search, we start from the 0th index of the array, we compare each element with the key (desired element).
+#If the key is same as the element of array ,we return the index of that element.
+#If the key does not match any element then ,we return -1.
+def search(arr, x): 
+    for i in range(len(arr)): 
+        if arr[i] == x: 
+            return i 
+    return -1
+    
+    
+n=int(input("Enter Size of array: "))
+arr=[]
+print("Enter array elements: ")
+for i in range(n):
+  e=int(input())
+  arr.append(e)
+x=int(input("Enter element to be searched: "))
+ans=search(arr,x)
+if ans==-1:
+  print("Element not found ")
+else:
+  print("Element found at ",ans)
+