QUESTION 1 By Simangaliso

#Simangaliso Collin Mavuso collinmavuso98@gmail.com

#QUESTION 1

#We are constructing a key-value pair without using Dictionary type 
#My logic was to implement list of lists in python were we hold key on 0 index and value on 1 index
#in that way we can call our values and manipulate it through our api methods below

dictList=[]
     
#I used a class with a oop approach in mind

class Dictionary:
    # we defining call APIs for our Dictionary below
    def add(key,values):# we assumed that key-value items can be duplicates
        dictList.append([key])# append key first then attach value after
        pos=dictList.index([key])
        dictList[pos].append(values)
        print("Entry updated")
        
      
    
    def get(key):# Gets value with given key
      for k,v in enumerate(dictList):
        if key in v[0]:
            return v[1]  #returns 1-index of value
            
    
    
      return "Key-values do not exists"
           
            
        
    def delete(key): # deletes specific key from Dictionary
        for k,v in enumerate(dictList):
             if  key in v:
                 dictList.remove(v)
                 return "Item successfully deleted"
                
    
        return "Item not in list"
        
        
    def contains(key): # Boolean Checks if key exists which holds value
      for k,v in enumerate(dictList):
        if key in v[0]:
            return True
            
    
      return False
        
    def length():# We get length of our Dictionary object
       return len(dictList)

#TESTCASES
Dictionary.add("name","Simangaliso")
Dictionary.add("surname","Mavuso")
Dictionary.add("middlename","Collin")

print(Dictionary.length())

print(Dictionary.get("middlename"))

print(Dictionary.contains("surname"))

print(Dictionary.delete('surname'))
print(dictList)

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