Program to Check if a Given Key is Already Exists in a Dictionary or Not?
Write a program to check if a given key is already exists in a dictionary or not?
d={101:'python',102:'c',103:'cpp',104:'java'}
n=int(input('enter key to be search'))
if n in d.keys():
print('The given key is present and the value of the key is')
print(d.get(n))
else:
print('given key is not present in a dictionary')
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