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Qus
Is the following Python code valid?
a={3,4,{7,5}}
print(a[2][0])
Qus
निम्नलिखित Python कोड वैलिड है?
a={3,4,{7,5}}
print(a[2][0])
A. Yes, 7 is printed
B. Error, elements of a set can’t be printed
C. Error, subsets aren’t allowed
D. Yes, {7,5} is printed
Solution
C. Error, subsets aren’t allowed
Explanation
In python, elements of a set must not be mutable and sets are mutable. Thus, subsets can’t exist.
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