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	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
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		| @ -1,6 +1,6 @@ | ||||
| // File: time_complexity.zig | ||||
| // Created Time: 2022-12-28 | ||||
| // Author: codingonion (coderonion@gmail.com) | ||||
| // Author: codingonion (coderonion@gmail.com), CreatorMetaSky (creator_meta_sky@163.com) | ||||
|  | ||||
| const std = @import("std"); | ||||
|  | ||||
| @ -10,7 +10,7 @@ fn constant(n: i32) i32 { | ||||
|     var count: i32 = 0; | ||||
|     const size: i32 = 100_000; | ||||
|     var i: i32 = 0; | ||||
|     while(i<size) : (i += 1) { | ||||
|     while (i < size) : (i += 1) { | ||||
|         count += 1; | ||||
|     } | ||||
|     return count; | ||||
| @ -52,7 +52,7 @@ fn quadratic(n: i32) i32 { | ||||
|  | ||||
| // 平方阶(冒泡排序) | ||||
| fn bubbleSort(nums: []i32) i32 { | ||||
|     var count: i32 = 0;  // 计数器  | ||||
|     var count: i32 = 0; // 计数器 | ||||
|     // 外循环:未排序区间为 [0, i] | ||||
|     var i: i32 = @as(i32, @intCast(nums.len)) - 1; | ||||
|     while (i > 0) : (i -= 1) { | ||||
| @ -61,10 +61,10 @@ fn bubbleSort(nums: []i32) i32 { | ||||
|         while (j < i) : (j += 1) { | ||||
|             if (nums[j] > nums[j + 1]) { | ||||
|                 // 交换 nums[j] 与 nums[j + 1] | ||||
|                 var tmp = nums[j]; | ||||
|                 const tmp = nums[j]; | ||||
|                 nums[j] = nums[j + 1]; | ||||
|                 nums[j + 1] = tmp; | ||||
|                 count += 3;  // 元素交换包含 3 个单元操作 | ||||
|                 count += 3; // 元素交换包含 3 个单元操作 | ||||
|             } | ||||
|         } | ||||
|     } | ||||
| @ -97,11 +97,9 @@ fn expRecur(n: i32) i32 { | ||||
| // 对数阶(循环实现) | ||||
| fn logarithmic(n: i32) i32 { | ||||
|     var count: i32 = 0; | ||||
|     var n_var = n; | ||||
|     while (n_var > 1) | ||||
|     { | ||||
|         n_var = n_var / 2; | ||||
|         count +=1; | ||||
|     var n_var: i32 = n; | ||||
|     while (n_var > 1) : (n_var = @divTrunc(n_var, 2)) { | ||||
|         count += 1; | ||||
|     } | ||||
|     return count; | ||||
| } | ||||
| @ -109,13 +107,13 @@ fn logarithmic(n: i32) i32 { | ||||
| // 对数阶(递归实现) | ||||
| fn logRecur(n: i32) i32 { | ||||
|     if (n <= 1) return 0; | ||||
|     return logRecur(n / 2) + 1; | ||||
|     return logRecur(@divTrunc(n, 2)) + 1; | ||||
| } | ||||
|  | ||||
| // 线性对数阶 | ||||
| fn linearLogRecur(n: i32) i32 { | ||||
|     if (n <= 1) return 1; | ||||
|     var count: i32 = linearLogRecur(n / 2) + linearLogRecur(n / 2); | ||||
|     var count: i32 = linearLogRecur(@divTrunc(n, 2)) + linearLogRecur(@divTrunc(n, 2)); | ||||
|     var i: i32 = 0; | ||||
|     while (i < n) : (i += 1) { | ||||
|         count += 1; | ||||
| @ -136,7 +134,7 @@ fn factorialRecur(n: i32) i32 { | ||||
| } | ||||
|  | ||||
| // Driver Code | ||||
| pub fn main() !void { | ||||
| pub fn run() void { | ||||
|     // 可以修改 n 运行,体会一下各种复杂度的操作数量变化趋势 | ||||
|     const n: i32 = 8; | ||||
|     std.debug.print("输入数据大小 n = {}\n", .{n}); | ||||
| @ -146,14 +144,14 @@ pub fn main() !void { | ||||
|  | ||||
|     count = linear(n); | ||||
|     std.debug.print("线性阶的操作数量 = {}\n", .{count}); | ||||
|     var nums = [_]i32{0}**n; | ||||
|     var nums = [_]i32{0} ** n; | ||||
|     count = arrayTraversal(&nums); | ||||
|     std.debug.print("线性阶(遍历数组)的操作数量 = {}\n", .{count}); | ||||
|  | ||||
|     count = quadratic(n); | ||||
|     std.debug.print("平方阶的操作数量 = {}\n", .{count}); | ||||
|     for (&nums, 0..) |*num, i| { | ||||
|         num.* = n - @as(i32, @intCast(i));  // [n,n-1,...,2,1] | ||||
|         num.* = n - @as(i32, @intCast(i)); // [n,n-1,...,2,1] | ||||
|     } | ||||
|     count = bubbleSort(&nums); | ||||
|     std.debug.print("平方阶(冒泡排序)的操作数量 = {}\n", .{count}); | ||||
| @ -174,6 +172,13 @@ pub fn main() !void { | ||||
|     count = factorialRecur(n); | ||||
|     std.debug.print("阶乘阶(递归实现)的操作数量 = {}\n", .{count}); | ||||
|  | ||||
|     _ = try std.io.getStdIn().reader().readByte(); | ||||
|     std.debug.print("\n", .{}); | ||||
| } | ||||
|  | ||||
| pub fn main() !void { | ||||
|     run(); | ||||
| } | ||||
|  | ||||
| test "time_complexity" { | ||||
|     run(); | ||||
| } | ||||
|  | ||||
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