mirror of
https://github.com/krahets/hello-algo.git
synced 2025-10-30 18:05:58 +08:00
code: update zig 0.14.1 for the chapter of array_and_linkedlist and computational_complexity (#1787)
* update zig array list chapter * update not need change codes. * fix some pr issues and update time space chapter
This commit is contained in:
@ -8,45 +8,6 @@ pub const ListNode = ListUtil.ListNode;
|
||||
pub const TreeUtil = @import("TreeNode.zig");
|
||||
pub const TreeNode = TreeUtil.TreeNode;
|
||||
|
||||
// 打印数组
|
||||
pub fn printArray(comptime T: type, nums: []T) void {
|
||||
std.debug.print("[", .{});
|
||||
if (nums.len > 0) {
|
||||
for (nums, 0..) |num, j| {
|
||||
std.debug.print("{}{s}", .{num, if (j == nums.len-1) "]" else ", " });
|
||||
}
|
||||
} else {
|
||||
std.debug.print("]", .{});
|
||||
}
|
||||
}
|
||||
|
||||
// 打印列表
|
||||
pub fn printList(comptime T: type, list: std.ArrayList(T)) void {
|
||||
std.debug.print("[", .{});
|
||||
if (list.items.len > 0) {
|
||||
for (list.items, 0..) |value, i| {
|
||||
std.debug.print("{}{s}", .{value, if (i == list.items.len-1) "]" else ", " });
|
||||
}
|
||||
} else {
|
||||
std.debug.print("]", .{});
|
||||
}
|
||||
}
|
||||
|
||||
// 打印链表
|
||||
pub fn printLinkedList(comptime T: type, node: ?*ListNode(T)) !void {
|
||||
if (node == null) return;
|
||||
var list = std.ArrayList(T).init(std.heap.page_allocator);
|
||||
defer list.deinit();
|
||||
var head = node;
|
||||
while (head != null) {
|
||||
try list.append(head.?.val);
|
||||
head = head.?.next;
|
||||
}
|
||||
for (list.items, 0..) |value, i| {
|
||||
std.debug.print("{}{s}", .{value, if (i == list.items.len-1) "\n" else "->" });
|
||||
}
|
||||
}
|
||||
|
||||
// 打印队列
|
||||
pub fn printQueue(comptime T: type, queue: std.TailQueue(T)) void {
|
||||
var node = queue.first;
|
||||
@ -54,7 +15,7 @@ pub fn printQueue(comptime T: type, queue: std.TailQueue(T)) void {
|
||||
var i: i32 = 0;
|
||||
while (node != null) : (i += 1) {
|
||||
var data = node.?.data;
|
||||
std.debug.print("{}{s}", .{data, if (i == queue.len - 1) "]" else ", " });
|
||||
std.debug.print("{}{s}", .{ data, if (i == queue.len - 1) "]" else ", " });
|
||||
node = node.?.next;
|
||||
}
|
||||
}
|
||||
@ -65,7 +26,7 @@ pub fn printHashMap(comptime TKey: type, comptime TValue: type, map: std.AutoHas
|
||||
while (it.next()) |kv| {
|
||||
var key = kv.key_ptr.*;
|
||||
var value = kv.value_ptr.*;
|
||||
std.debug.print("{} -> {s}\n", .{key, value});
|
||||
std.debug.print("{} -> {s}\n", .{ key, value });
|
||||
}
|
||||
}
|
||||
|
||||
@ -79,54 +40,3 @@ pub fn printHeap(comptime T: type, mem_allocator: std.mem.Allocator, queue: anyt
|
||||
var root = try TreeUtil.arrToTree(T, mem_allocator, arr[0..len]);
|
||||
try printTree(root, null, false);
|
||||
}
|
||||
|
||||
// 打印二叉树
|
||||
// This tree printer is borrowed from TECHIE DELIGHT
|
||||
// https://www.techiedelight.com/c-program-print-binary-tree/
|
||||
const Trunk = struct {
|
||||
prev: ?*Trunk = null,
|
||||
str: []const u8 = undefined,
|
||||
|
||||
pub fn init(self: *Trunk, prev: ?*Trunk, str: []const u8) void {
|
||||
self.prev = prev;
|
||||
self.str = str;
|
||||
}
|
||||
};
|
||||
|
||||
pub fn showTrunks(p: ?*Trunk) void {
|
||||
if (p == null) return;
|
||||
showTrunks(p.?.prev);
|
||||
std.debug.print("{s}", .{p.?.str});
|
||||
}
|
||||
|
||||
// 打印二叉树
|
||||
pub fn printTree(root: ?*TreeNode(i32), prev: ?*Trunk, isRight: bool) !void {
|
||||
if (root == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
var prev_str = " ";
|
||||
var trunk = Trunk{.prev = prev, .str = prev_str};
|
||||
|
||||
try printTree(root.?.right, &trunk, true);
|
||||
|
||||
if (prev == null) {
|
||||
trunk.str = "———";
|
||||
} else if (isRight) {
|
||||
trunk.str = "/———";
|
||||
prev_str = " |";
|
||||
} else {
|
||||
trunk.str = "\\———";
|
||||
prev.?.str = prev_str;
|
||||
}
|
||||
|
||||
showTrunks(&trunk);
|
||||
std.debug.print(" {}\n", .{root.?.val});
|
||||
|
||||
if (prev) |_| {
|
||||
prev.?.str = prev_str;
|
||||
}
|
||||
trunk.str = " |";
|
||||
|
||||
try printTree(root.?.left, &trunk, false);
|
||||
}
|
||||
Reference in New Issue
Block a user