g0201_0300.s0241_different_ways_to_add_parentheses

Class Solution

java.lang.Object

g0201_0300.s0241_different_ways_to_add_parentheses.Solution

public class Solution
extends Object

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].

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
List<Integer>	diffWaysToCompute(String expression)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

diffWaysToCompute

public List<Integer> diffWaysToCompute(String expression)