Pattern

Sort + Two Pointers

4 problems in the roadmap use this pattern.

• 3Sum Medium

  in Two Pointers

  Reported at: AmazonMetaMicrosoft+14
• 3Sum Closest Medium

  in Two Pointers

  Reported at: MetaAmazonGoogle+4
• 4Sum Medium

  in Two Pointers

  Reported at: AmazonMetaApple+5
• Number of Subsequences That Satisfy the Given Sum Condition Medium

  in Two Pointers