Data update

Task/Associative-array-Iteration/Zig/associative-array-iteration-1.zig

@@ -0,0 +1,30 @@
+const std = @import("std");
+
+pub fn main() !void {
+    const stdout = std.io.getStdOut().writer();
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    const allocator = gpa.allocator();
+
+    var hash_map = std.StringArrayHashMap(f32).init(allocator);
+    defer hash_map.deinit();
+
+    try hash_map.put("B3",  246.94);
+    try hash_map.put("C4",  261.63);
+    try hash_map.put("C#4", 277.18);
+
+    for (hash_map.keys()) |key| {
+        try stdout.print("{s}\n", .{key});
+    }
+
+    for (hash_map.values()) |value| {
+        try stdout.print("{d}\n", .{value});
+    }
+
+    var iter = hash_map.iterator();
+    while (iter.next()) |entry| {
+        const key = entry.key_ptr.*;
+        const value = entry.value_ptr.*;
+
+        try stdout.print("{s}, {d}\n", .{key, value});
+    }
+}