The input range includes both negative and non-negative values and the problem defines a trionic array, as an array with three slopes. At the start: strictly increasing. At the middle: strictly ...

// 1. Check if the minimum elements are 4 since 0 < p < q < n-1 requires 4 elements atleast. // 2. Strictly increasing phase: Incase after this, return false incase the index is: // 3. Store the ...