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For a Python-like core language with an expressive type system that is simple, clean and immediately absorbable, you're really looking for Nim, not Go. The following produces a single binary with native code generation via compilation to C, no VM: import rdstdin, strutils
let
time24 = readLineFromStdin("Enter a 24-hour time: ").split(':').map(parseInt)
hours24 = time24[0]
minutes24 = time24[1]
flights: array[8, tuple[since: int,
depart: string,
arrive: string]] = [(480, "8:00 a.m.", "10:16 a.m."),
(583, "9:43 a.m.", "11:52 a.m."),
(679, "11:19 a.m.", "1:31 p.m."),
(767, "12:47 p.m.", "3:00 p.m."),
(840, "2:00 p.m.", "4:08 p.m."),
(945, "3:45 p.m.", "5:55 p.m."),
(1140, "7:00 p.m.", "9:20 p.m."),
(1305, "9:45 p.m.", "11:58 p.m.")]
proc minutesSinceMidnight(hours: int = hours24, minutes: int = minutes24): int =
hours * 60 + minutes
proc cmpFlights(m = minutesSinceMidnight()): seq[int] =
result = newSeq[int](flights.len)
for i in 0 .. <flights.len:
result[i] = abs(m - flights[i].since)
proc getClosest(): int =
for k,v in cmpFlights():
if v == cmpFlights().min: return k
echo "Closest departure time is ", flights[getClosest()].depart,
", arriving at ", flights[getClosest()].arrive
Statistics (on an x86_64 Intel Core2Quad Q9300): Lang Time [ms] Memory [KB] Compile Time [ms] Compressed Code [B]
Nim 1400 1460 893 486
C++ 1478 2717 774 728
D 1518 2388 1614 669
Rust 1623 2632 6735 934
Java 1874 24428 812 778
OCaml 2384 4496 125 782
Go 3116 1664 596 618
Haskell 3329 5268 3002 1091
LuaJit 3857 2368 - 519
Lisp 8219 15876 1043 1007
Racket 8503 130284 24793 741
Not only is this syntax far more approachable for anyone who likes Python, as opposed to Go, Nim is actually suitable for systems and embedded programming. Optional GC and manual memory management makes Nim one of the few up and coming systems programming language that ventures into C territory while still being safe and pragmatic enough for general usage.http://goran.krampe.se/2014/10/20/i-missed-nim/ https://github.com/Araq/Nim/wiki/Nim-for-C-programmers |