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feat: Revised the book (#978)

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* Sync recent changes to the revised Word.

* Revised the preface chapter

* Revised the introduction chapter

* Revised the computation complexity chapter

* Revised the chapter data structure

* Revised the chapter array and linked list

* Revised the chapter stack and queue

* Revised the chapter hashing

* Revised the chapter tree

* Revised the chapter heap

* Revised the chapter graph

* Revised the chapter searching

* Reivised the sorting chapter

* Revised the divide and conquer chapter

* Revised the chapter backtacking

* Revised the DP chapter

* Revised the greedy chapter

* Revised the appendix chapter

* Revised the preface chapter doubly

* Revised the figures
This commit is contained in:
Yudong Jin
2023-12-02 06:21:34 +08:00
committed by GitHub
parent b824d149cb
commit e720aa2d24
404 changed files with 1537 additions and 1558 deletions
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2
codes/dart/chapter_dynamic_programming/climbing_stairs_backtrack.dart
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@@ -22,7 +22,7 @@ void backtrack(List<int> choices, int state, int n, List<int> res) {
/* 爬楼梯：回溯 */
int climbingStairsBacktrack(int n) {
List<int> choices = [1, 2]; // 可选择向上爬 1 或 2 阶
List<int> choices = [1, 2]; // 可选择向上爬 1 阶或 2 阶
int state = 0; // 从第 0 阶开始爬
List<int> res = [];
res.add(0); // 使用 res[0] 记录方案数量

2
codes/dart/chapter_dynamic_programming/coin_change.dart
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@@ -16,7 +16,7 @@ int coinChangeDP(List<int> coins, int amt) {
for (int a = 1; a <= amt; a++) {
dp[0][a] = MAX;
}
// 状态转移：其余行列
// 状态转移：其余行和列
for (int i = 1; i <= n; i++) {
for (int a = 1; a <= amt; a++) {
if (coins[i - 1] > a) {

2
codes/dart/chapter_dynamic_programming/edit_distance.dart
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@@ -56,7 +56,7 @@ int editDistanceDP(String s, String t) {
for (int j = 1; j <= m; j++) {
dp[0][j] = j;
}
// 状态转移：其余行列
// 状态转移：其余行和列
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
if (s[i - 1] == t[j - 1]) {

8
codes/dart/chapter_dynamic_programming/knapsack.dart
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@@ -8,11 +8,11 @@ import 'dart:math';
/* 0-1 背包：暴力搜索 */
int knapsackDFS(List<int> wgt, List<int> val, int i, int c) {
// 若已选完所有物品或背包无容量，则返回价值 0
// 若已选完所有物品或背包无剩余容量，则返回价值 0
if (i == 0 || c == 0) {
return 0;
}
// 若超过背包容量，则只能不放入背包
// 若超过背包容量，则只能选择不放入背包
if (wgt[i - 1] > c) {
return knapsackDFS(wgt, val, i - 1, c);
}
@@ -31,7 +31,7 @@ int knapsackDFSMem(
int i,
int c,
) {
// 若已选完所有物品或背包无容量，则返回价值 0
// 若已选完所有物品或背包无剩余容量，则返回价值 0
if (i == 0 || c == 0) {
return 0;
}
@@ -39,7 +39,7 @@ int knapsackDFSMem(
if (mem[i][c] != -1) {
return mem[i][c];
}
// 若超过背包容量，则只能不放入背包
// 若超过背包容量，则只能选择不放入背包
if (wgt[i - 1] > c) {
return knapsackDFSMem(wgt, val, mem, i - 1, c);
}

2
codes/dart/chapter_dynamic_programming/min_path_sum.dart
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@@ -61,7 +61,7 @@ int minPathSumDP(List<List<int>> grid) {
for (int i = 1; i < n; i++) {
dp[i][0] = dp[i - 1][0] + grid[i][0];
}
// 状态转移：其余行列
// 状态转移：其余行和列
for (int i = 1; i < n; i++) {
for (int j = 1; j < m; j++) {
dp[i][j] = min(dp[i][j - 1], dp[i - 1][j]) + grid[i][j];