Leetcode Problem 2118. Build the Equation

2118. Build the Equation

Leetcode Solutions

Select all rows from the Terms table.
For each row, determine the sign ('+' or '-') based on the factor value.
Determine the term representation based on the power value:
- If power is greater than 1, include 'X^' and the power value.
- If power is 1, include only 'X'.
- If power is 0, include neither 'X' nor '^'.
Concatenate the sign, the absolute value of the factor, and the term representation to form the term string.
Use GROUP_CONCAT to aggregate all term strings in descending order of power.
Concatenate the aggregated term strings with '=0' to form the final equation.
Return the final equation as the result.


erDiagram
    Terms {
        int power
        int factor
    }

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