## Minimize Result by Adding Parentheses to Expression solution leetcode

Add a pair of parentheses to`expression`

such that after the addition of parentheses, `expression`

is a **valid**mathematical expression and evaluates to the

**smallest**possible value. The left parenthesis

**must**be added to the left of

`'+'`

and the right parenthesis **must**be added to the right of

`'+'`

. Return `expression`

*after adding a pair of parentheses such that*

`expression`

*evaluates to the*If there are multiple answers that yield the same result, return any of them. The input has been generated such that the original value of

**smallest**possible value.`expression`

, and the value of `expression`

after adding any pair of parentheses that meets the requirements fits within a signed 32-bit integer.
## Minimize Result by Adding Parentheses to Expression solution leetcode

Input:expression = "247+38"Output:"2(47+38)"Explanation:The`expression`

evaluates to 2 * (47 + 38) = 2 * 85 = 170. Note that "2(4)7+38" is invalid because the right parenthesis must be to the right of the`'+'`

. It can be shown that 170 is the smallest possible value.

**Example 2:**

Input:expression = "12+34"Output:"1(2+3)4"Explanation:The expression evaluates to 1 * (2 + 3) * 4 = 1 * 5 * 4 = 20.

**Example 3:**

Input:expression = "999+999"Output:"(999+999)"Explanation:The`expression`

evaluates to 999 + 999 = 1998.

**Minimize Result by Adding Parentheses to Expression :**

`3 <= expression.length <= 10`

`expression`

consists of digits from`'1'`

to`'9'`

and`'+'`

.`expression`

starts and ends with digits.`expression`

contains exactly one`'+'`

.- The original value of
`expression`

, and the value of`expression`

after adding any pair of parentheses that meets the requirements fits within a signed 32-bit integer. -
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