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g0801_0900.s0816_ambiguous_coordinates.readme.md Maven / Gradle / Ivy

816\. Ambiguous Coordinates

Medium

We had some 2-dimensional coordinates, like `"(1, 3)"` or `"(2, 0.5)"`. Then, we removed all commas, decimal points, and spaces and ended up with the string s.

*   For example, `"(1, 3)"` becomes `s = "(13)"` and `"(2, 0.5)"` becomes `s = "(205)"`.

Return _a list of strings representing all possibilities for what our original coordinates could have been_.

Our original representation never had extraneous zeroes, so we never started with numbers like `"00"`, `"0.0"`, `"0.00"`, `"1.0"`, `"001"`, `"00.01"`, or any other number that can be represented with fewer digits. Also, a decimal point within a number never occurs without at least one digit occurring before it, so we never started with numbers like `".1"`.

The final answer list can be returned in any order. All coordinates in the final answer have exactly one space between them (occurring after the comma.)

**Example 1:**

**Input:** s = "(123)"

**Output:** ["(1, 2.3)","(1, 23)","(1.2, 3)","(12, 3)"]

**Example 2:**

**Input:** s = "(0123)"

**Output:** ["(0, 1.23)","(0, 12.3)","(0, 123)","(0.1, 2.3)","(0.1, 23)","(0.12, 3)"]

**Explanation:** 0.0, 00, 0001 or 00.01 are not allowed.

**Example 3:**

**Input:** s = "(00011)"

**Output:** ["(0, 0.011)","(0.001, 1)"]

**Constraints:**

*   `4 <= s.length <= 12`
*   `s[0] == '('` and `s[s.length - 1] == ')'`.
*   The rest of `s` are digits.