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Diffstat (limited to 'exercises/44_quiz5.zig')
-rw-r--r-- | exercises/44_quiz5.zig | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/exercises/44_quiz5.zig b/exercises/44_quiz5.zig deleted file mode 100644 index 8a0d88c..0000000 --- a/exercises/44_quiz5.zig +++ /dev/null @@ -1,47 +0,0 @@ -// -// "Elephants walking -// Along the trails -// -// Are holding hands -// By holding tails." -// -// from Holding Hands -// by Lenore M. Link -// -const std = @import("std"); - -const Elephant = struct { - letter: u8, - tail: *Elephant = undefined, - visited: bool = false, -}; - -pub fn main() void { - var elephantA = Elephant{ .letter = 'A' }; - // (Please add Elephant B here!) - var elephantC = Elephant{ .letter = 'C' }; - - // Link the elephants so that each tail "points" to the next elephant. - // They make a circle: A->B->C->A... - elephantA.tail = &elephantB; - // (Please link Elephant B's tail to Elephant C here!) - elephantC.tail = &elephantA; - - visitElephants(&elephantA); - - std.debug.print("\n", .{}); -} - -// This function visits all elephants once, starting with the -// first elephant and following the tails to the next elephant. -// If we did not "mark" the elephants as visited (by setting -// visited=true), then this would loop infinitely! -fn visitElephants(first_elephant: *Elephant) void { - var e = first_elephant; - - while (!e.visited) { - std.debug.print("Elephant {u}. ", .{e.letter}); - e.visited = true; - e = e.tail; - } -} |