Added Python programs Part - 1

Arrays/Array Reversal.py

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+'''This is a Program to reverse an array
+ i.e. Input: 1,2,3,4,5
+ Output:5,4,3,2,1'''
+
+# Taking array input
+l=input().split()
+
+#Creating reverse array
+r=[]
+for i in range(0,len(l)):
+    r.append(int(l[len(l)-i-1]))
+
+print(r)
+

Arrays/CommonElements.py

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+'''Finding common elements between two arrays in which the elements are distinct.
+Eg:
+
+1 2 3 4 5 12 8
+6 7 3 4 2 9 11
+
+
+O/P:
+2 3 4 '''
+
+# Taking array input
+l1=input().split()
+l2=input().split()
+
+#Creating array of common elements
+r=[]
+for i in l1:
+    if i in l2:
+        r.append(i)
+
+print(r)
+

Arrays/duplicates_in_array.py

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+'''
+Example - 1 2 3 4 6 3 3 5 5
+
+Duplicates are -> 3 5
+'''
+
+# Taking array input
+l=input().split()
+
+# Changing string array to integer array
+for i in range(0,len(l)):
+    l[i]=int(l[i])
+
+newl=[]
+dupli=[]
+
+# Logic for catching duplicate elements
+for i in l:
+    if i not in newl:
+        newl.append(i)
+    else:
+        if i not in dupli:
+            dupli.append(i)
+
+print(dupli)

Arrays/remove_duplicates_from_sorted_array.py

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+# Taking array input
+l=input().split()
+
+# Changing string array to integer array
+for i in range(0,len(l)):
+    l[i]=int(l[i])
+
+#sorting
+l.sort()
+
+#Removing duplicate elements
+newl = []
+if(len(l)>0):
+    newl.append(l[0])
+    for i in range(1,len(l)):
+        if l[i-1]!=l[i]:
+            newl.append(l[i])
+
+print(newl)
+
+

Arrays/subset_of_array.py

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+'''
+Given two arrays: arr1[0..m-1] of size m and arr2[0..n-1] of size n. Task is to check whether arr2[] is a subset
+of arr1[] or not. Both the arrays can be both unsorted or sorted. It may be assumed that elements in both array are distinct.
+'''
+
+# Taking array input
+l1=input().split()
+l2=input().split()
+
+#Creating array of common elements
+r=[]
+for i in l1:
+    if i in l2:
+        r.append(i)
+
+if r==l2:
+    print("Array 2 is the subset of Array 1")
+else:
+    print("Array 2 is NOT the subset of Array 1")