Report Bug

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

C. Error, subsets aren’t allowed

In python, elements of a set must not be mutable and sets are mutable. Thus, subsets can’t exist.