JuniorTheoryCommon

What does the program print (lines separated by spaces)?

SWIFT

let grade = "B"
switch grade {
case "A":
    print(5)
case "B":
    print(4)
case "C":
    print(3)
default:
    print(2)
}

Expecting 4 3 2, as in C, where execution falls into the branches below. A Swift branch ends on its own; only fallthrough moves into the next one.
Expecting default to run after the matching branch as well. It runs only when no case fits the value.

JuniorTheoryCommon

SWIFT

let grade = "B"
switch grade {
case "A":
    print(5)
case "B":
    print(4)
case "C":
    print(3)
default:
    print(2)
}

Expecting 4 3 2, as in C, where execution falls into the branches below. A Swift branch ends on its own; only fallthrough moves into the next one.
Expecting default to run after the matching branch as well. It runs only when no case fits the value.