Python3

Question

code:
x=1
y=1
if x and not y:
print("a")
else:
print("b")

I can't understand why the solution
is "b".

Answer 1

in a Boolean context 1 converts to True, and not y converts to False
True AND False is False, so we execute the else branch, not the 'if'

Answer 2

0 = false 1 = true. since x and y are both 1(or true) saying “not y” returns the opposite of true(false)
if statements only run if the value is true.
else runs if no if / elif statements run.
therefore, b is printed

Answer 3

The if statement is passed if the evaluated condition gives you True. As it was explained, 1 and not 0 will lead to False.

For better understanding, you should test and see how python evaluates different types of values. For instance, any 'int' or 'float' value which is different than 0 will evaluate to True, while the 0 value will lead to False. An empty string, "", will evaluate to False, and a string with one or more characters will evaluate to True. An empty list will evaluate to False, and a list with one or more items will evaluate to True. Etc.

In the if condition above, x is evaluated to True and y to True. Thus, you get the expression:

if True and not True:
...

Finally, it will lead to False, because it's the AND result between True and False (not True).

I hope that was helpful! :) Happy coding!

Answer 4

If not(x and y):

Answer 5

Python3

code:
x=1
y=1
if x and not y:
print("a")
else:
print("b")

I can't understand why the solution
is "b".

Answer 6

ok, its got to do with booleans.

True=1
False=0
b is true.
not(b) means opposite of true, so not b is false.

if a and not b is a false statement. if not b was true then it’d be a true statement.

hope you understood.

Answer 7

In a Boolean 1 means true and 0 means false, and X and y are 1 here so both true. The if statement asks if X is true and y is false, that isn't the case so it executes the else and prints b

Answer 8

If u want to make the solution 'a' use 'or' at the place of 'and'.

Answer 9

https://code.sololearn.com/WwqdRM522csu/?ref=app

Answer 10

True "Pr0C0d3r 6₹--₹ sotzzkgagakzhlgri💜💕