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Stdle #101 · simd · 2026-09-15

What does this Zig snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

const std = @import("std");
pub fn main() void {
const a: @Vector(4, i32) = .{ 1, 2, 3, 4 };
const b: @Vector(4, i32) = .{ 5, 6, 7, 8 };
const shuffled = @shuffle(i32, a, b, @Vector(4, i32){ 0, ~@as(i32, 1), 2, ~@as(i32, 3) });
std.debug.print("{d} {d} {d} {d}\n", .{ shuffled[0], shuffled[1], shuffled[2], shuffled[3] });
}
SIMD
4 attempts left

Answer & explanation