Day5

2022-10-07 00:48:29 +03:00
parent c388b14c3f
commit 0b88604037
20 changed files with 414 additions and 7 deletions
--- a/Sorted/Solution.cs
+++ b/Sorted/Solution.cs
@@ -0,0 +1,46 @@
+namespace _167._Two_Sum_II___Input_Array_Is_Sorted;
+
+public class Solution
+{
+    public int[]? TwoSum(int[] numbers, int target)
+    {
+        for(int i = 0; i < numbers.Length; i++)
+        {
+            int cur = numbers[i];
+            int nextTar = target - cur;
+            int index = Search(numbers, nextTar);
+            if (i == index || index < 0 || index >= numbers.Length)
+                continue;
+            int val = numbers[index];
+            if (cur + val == target)
+            {
+                if(i>index)
+                {
+                    i = i + index;
+                    index = i - index;
+                    i = i - index;
+                }
+                return new int[] { i + 1, index + 1 };
+            }
+        }
+        return null;
+    }
+
+    public int Search(int[] nums, int target)
+    {
+        int l = -1;
+        int r = nums.Length;
+        while (l < r - 1)
+        {
+            int i = l + (r - l) / 2;
+            int cur = nums[i];
+            if (cur == target)
+                return i;
+            if (cur > target)
+                r = i;
+            else
+                l = i;
+        }
+        return -1;
+    }
+}