TWC308

2 files changed, 64 insertions, 0 deletions

diff --git a/challenge-308/deadmarshal/zig/ch1/src/main.zig b/challenge-308/deadmarshal/zig/ch1/src/main.zig
new file mode 100644
index 0000000000..249b714db7
--- /dev/null
+++ b/challenge-308/deadmarshal/zig/ch1/src/main.zig
@@ -0,0 +1,54 @@
+const std = @import("std");
+
+fn countCommon(
+    allocator: std.mem.Allocator,
+    a1: []const []const u8,
+    a2: []const []const u8,
+) !usize {
+    var count: usize = 0;
+    var h = std.StringHashMap(u32).init(allocator);
+    defer h.deinit();
+    for (a1) |s| {
+        const entry = try h.getOrPut(s);
+        if (entry.found_existing) {
+            entry.value_ptr.* += 1;
+        } else {
+            entry.value_ptr.* = 1;
+        }
+    }
+    for (a2) |s| {
+        const entry = try h.getOrPut(s);
+        if (entry.found_existing) {
+            entry.value_ptr.* += 1;
+        } else {
+            entry.value_ptr.* = 1;
+        }
+    }
+    var it = h.iterator();
+    while (it.next()) |e| {
+        if (e.value_ptr.* >= 2) {
+            count += 1;
+        }
+    }
+    return count;
+}
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer {
+        std.debug.assert(gpa.detectLeaks() == false);
+        std.debug.assert(gpa.deinit() == .ok);
+    }
+    const allocator = gpa.allocator();
+
+    const a1 = [_][]const u8{ "perl", "weekly", "challenge" };
+    const a2 = [_][]const u8{ "raku", "weekly", "challenge" };
+    const a3 = [_][]const u8{ "perl", "raku", "python" };
+    const a4 = [_][]const u8{ "python", "java" };
+    const a5 = [_][]const u8{ "guest", "contribution" };
+    const a6 = [_][]const u8{ "fun", "weekly", "challenge" };
+
+    std.debug.print("{}\n", .{try countCommon(allocator, &a1, &a2)});
+    std.debug.print("{}\n", .{try countCommon(allocator, &a3, &a4)});
+    std.debug.print("{}\n", .{try countCommon(allocator, &a5, &a6)});
+}
diff --git a/challenge-308/deadmarshal/zig/ch1/src/root.zig b/challenge-308/deadmarshal/zig/ch1/src/root.zig
new file mode 100644
index 0000000000..ecfeade1a3
--- /dev/null
+++ b/challenge-308/deadmarshal/zig/ch1/src/root.zig
@@ -0,0 +1,10 @@
+const std = @import("std");
+const testing = std.testing;
+
+export fn add(a: i32, b: i32) i32 {
+    return a + b;
+}
+
+test "basic add functionality" {
+    try testing.expect(add(3, 7) == 10);
+}