Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    167 - Two Sum II - Input Array Is Sorted\.

    Medium

    Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order , find two numbers such that they add up to a specific target number. Let these two numbers be <code>numbersindex<sub>1</sub></code> and <code>numbersindex<sub>2</sub></code> where <code>1 <= index<sub>1</sub>< index<sub>2</sub><= numbers.length</code>.

    Return the indices of the two numbers, <code>index<sub>1</sub></code> and <code>index<sub>2</sub></code>, added by one as an integer array <code>index<sub>1</sub>, index<sub>2</sub></code> of length 2.

    The tests are generated such that there is exactly one solution. You may not use the same element twice.

    Your solution must use only constant extra space.

    Example 1:

    Input: numbers = <ins>2</ins>,<ins>7</ins>,11,15, target = 9

    Output: 1,2

    Explanation: The sum of 2 and 7 is 9. Therefore, index<sub>1</sub> = 1, index<sub>2</sub> = 2. We return 1, 2.

    Example 2:

    Input: numbers = <ins>2</ins>,3,<ins>4</ins>, target = 6

    Output: 1,3

    Explanation: The sum of 2 and 4 is 6. Therefore index<sub>1</sub> = 1, index<sub>2</sub> = 3. We return 1, 3.

    Example 3:

    Input: numbers = <ins>\-1</ins>,<ins>0</ins>, target = -1

    Output: 1,2

    Explanation: The sum of -1 and 0 is -1. Therefore index<sub>1</sub> = 1, index<sub>2</sub> = 2. We return 1, 2.

    Constraints:

    • <code>2 <= numbers.length <= 3 * 10<sup>4</sup></code>

    • -1000 &lt;= numbers[i] &lt;= 1000

    • numbers is sorted in non-decreasing order.

    • -1000 &lt;= target &lt;= 1000

    • The tests are generated such that there is exactly one solution.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
    • Field Summary

      Fields 
      Modifier and Type Field Description
    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
    • Method Summary

      Modifier and Type Method Description
      final IntArray twoSum(IntArray numbers, Integer target)
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait