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krahets
2023-11-27 02:32:06 +08:00
parent 32d5bd97aa
commit a4a23e2488
31 changed files with 179 additions and 213 deletions
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10
docs/chapter_backtracking/permutations_problem.md
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@@ -187,8 +187,8 @@ comments: true
/* 全排列 I */
List<List<int>> PermutationsI(int[] nums) {
List<List<int>> res = new();
Backtrack(new List<int>(), nums, new bool[nums.Length], res);
List<List<int>> res = [];
Backtrack([], nums, new bool[nums.Length], res);
return res;
}
```
@@ -623,7 +623,7 @@ comments: true
return;
}
// 遍历所有选择
ISet<int> duplicated = new HashSet<int>();
HashSet<int> duplicated = [];
for (int i = 0; i < choices.Length; i++) {
int choice = choices[i];
// 剪枝：不允许重复选择元素 且 不允许重复选择相等元素
@@ -643,8 +643,8 @@ comments: true
/* 全排列 II */
List<List<int>> PermutationsII(int[] nums) {
List<List<int>> res = new();
Backtrack(new List<int>(), nums, new bool[nums.Length], res);
List<List<int>> res = [];
Backtrack([], nums, new bool[nums.Length], res);
return res;
}
```