16 lines
325 B
Lua
Executable file
16 lines
325 B
Lua
Executable file
#!/usr/bin/env lua
|
|
|
|
aim = 0
|
|
h = 0
|
|
v = 0
|
|
|
|
function down(val) aim = aim + val end
|
|
function up(val) aim = aim - val end
|
|
function forward(val) h = h + val; v = v + aim * val end
|
|
|
|
for line in io.lines("input.txt") do
|
|
cmd, val = string.match(line, "(%S+) (%S+)")
|
|
_G[cmd](val)
|
|
end
|
|
|
|
print(string.format("Answer: %d", h * v))
|