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Author: AmitGupta700

Maximum element in dictionary.py

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+from collections import Counter
+
+dict= {'item1': 45.50, 'item2':35, 'item3': 41.30, 'item4':55, 'item5': 24}
+k = Counter(dict)
+  
+# Finding 3 highest values
+high = k.most_common(3) 
+  
+print("Initial Dictionary:")
+print(dict, "\n")
+  
+  
+print("Dictionary with 3 highest values:")
+print("Keys: Values")
+  
+for i in high:
+    print(i[0]," :",i[1]," ")

Merge two dictionary.py

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+def merge(dict1, dict2):
+    return(dict2.update(dict1))
+
+dict1= {'R': 'Red', 'B': 'Black', 'P':'Pink'}
+dict2= {'G': 'Green', 'W': 'White'}
+
+print(merge(dict1, dict2))
+print(dict2)

Most frequent element in a list.py

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+def most_frequent(List):
+    return max(set(List))
+
+List= ['PHP','PHP','Python','PHP','Python','JS','Python','Python','PHP','Python']
+print(most_frequent(List))

Nested Dictionary.py

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+def nested_dictionary(l1, l2, l3):
+     result = [{x: {y: z}} for (x, y, z) in zip(l1, l2, l3)]
+     return result
+
+student_id = ["S001", "S002", "S003", "S004"] 
+student_name = ["Adina Park", "Leyton Marsh", "Duncan Boyle", "Saim Richards"] 
+student_grade = [85, 98, 89, 92]
+print("Original strings:")
+print(student_id)
+print(student_name)
+print(student_grade)
+print("\nNested dictionary:")
+ch='a'
+print(nested_dictionary(student_id, student_name, student_grade))

Window in another string.py

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+import collections
+def min_window(str1, str2):
+    result_char, missing_char = collections.Counter(str2), len(str2)
+    i = p = q = 0
+    for j, c in enumerate(str1, 1):
+        missing_char -= result_char[c] > 0
+        result_char[c] -= 1
+        if not missing_char:
+            while i < q and result_char[str1[i]] < 0:
+                result_char[str1[i]] += 1
+                i += 1
+            if not q or j - i <= q - p:
+                p, q = i, j
+    return str1[p:q]
+           
+str1 = "PRWSOERIUSFK"
+str2 = "OSU"
+print("Original Strings:\n",str1,"\n",str2)
+print("Minimum window:")
+print(min_window(str1,str2))