Watch 10 video solutions for Ambiguous Coordinates, a medium level problem involving String, Backtracking, Enumeration. This walkthrough by NeetCode has 427,694 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
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.
"(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 <= 12s[0] == '(' and s[s.length - 1] == ')'.s are digits.