Package g0201_0300.s0241_different_ways_to_add_parentheses

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    241 - Different Ways to Add Parentheses\.

    Medium

    Given a string expression of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. You may return the answer in any order.

    Example 1:

    Input: expression = "2-1-1"

    Output: 0,2

    Explanation: ((2-1)-1) = 0 (2-(1-1)) = 2

    Example 2:

    Input: expression = "2\*3-4\*5"

    Output: -34,-14,-10,-10,10

    Explanation:

    (2*(3-(4*5))) = -34
((2*3)-(4*5)) = -14
((2*(3-4))*5) = -10
(2*((3-4)*5)) = -10
(((2*3)-4)*5) = 10

    Constraints:

    • 1 <= expression.length <= 20

    • expression consists of digits and the operator '+', '-', and '*'.

    • All the integer values in the input expression are in the range [0, 99].

    • 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 List<Integer> diffWaysToCompute(String expression)

      • Methods inherited from class java.lang.Object

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