Add '2019/' from commit 'fc21396bc86bc0f706225f4f6e1d8294d344ca53'

git-subtree-dir: 2019
git-subtree-mainline: f1be11fca8
git-subtree-split: fc21396bc8

2019/09/src/main.zig

@@ -0,0 +1,22 @@
+const std = @import("std");
+const intcode = @import("intcode");
+
+pub fn main() anyerror!void {
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+
+    const alloc = &arena.allocator;
+
+    var program = try intcode.loadFromStdIn(alloc);
+
+    var machine = try intcode.Machine.init(alloc, program);
+    try machine.writeToInput(1); // BOOST program in test mode
+    try machine.run();
+
+    std.debug.warn("Day 9, Part 1: {}\n", try machine.readFromOutput());
+
+    try machine.writeToInput(2); // BOOST program in sensor boost mode
+    try machine.run();
+
+    std.debug.warn("Day 9, Part 2: {}\n", try machine.readFromOutput());
+}