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krahets
2023-10-08 01:43:28 +08:00
parent 3d2d669b43
commit baac2d11a7
52 changed files with 999 additions and 625 deletions
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zh/chapter_searching/binary_search_edge.md
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@@ -69,9 +69,9 @@ comments: true
```csharp title="binary_search_edge.cs"
/* 二分查找最左一个 target */
int binarySearchLeftEdge(int[] nums, int target) {
int BinarySearchLeftEdge(int[] nums, int target) {
// 等价于查找 target 的插入点
int i = binary_search_insertion.binarySearchInsertion(nums, target);
int i = binary_search_insertion.BinarySearchInsertion(nums, target);
// 未找到 target ，返回 -1
if (i == nums.Length || nums[i] != target) {
return -1;
@@ -273,9 +273,9 @@ comments: true
```csharp title="binary_search_edge.cs"
/* 二分查找最右一个 target */
int binarySearchRightEdge(int[] nums, int target) {
int BinarySearchRightEdge(int[] nums, int target) {
// 转化为查找最左一个 target + 1
int i = binary_search_insertion.binarySearchInsertion(nums, target + 1);
int i = binary_search_insertion.BinarySearchInsertion(nums, target + 1);
// j 指向最右一个 target ，i 指向首个大于 target 的元素
int j = i - 1;
// 未找到 target ，返回 -1