How should I practice Light Sources 🩵?

Start by reading the full statement, solve the visible examples, then compare the pattern against related The Trade Desk online assessment problems in FastPrep.

Is Light Sources 🩵 associated with The Trade Desk?

FastPrep tags this as a The Trade Desk online assessment coding practice problem when the problem catalog has that company and stage context.

Light Sources 🩵

The Trade Desk● MediumINTERNOA

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Problem statement

In the expanse of a linear coordinate line, a celestial spectacle unfolds as numerous luminous orbs, each possessing its unique radiance, are strategically placed. The intricate details of these radiant spheres are cataloged within a two-dimensional array, dubbed "celestialArrangements." Each entry in this array encapsulates the essence of a single orb, revealing both its position and the extent of its luminosity.

Within the realm of "celestialArrangements":

The ethereal coordinates of the ith orb are encapsulated in celestialArrangements[i][0].
Manifesting its brilliance, the positive radius of the ith orb's radiance is manifested through celestialArrangements[i][1].

As the night unfolds, each orb casts its enchanting glow, spanning from celestialArrangements[i][0] - celestialArrangements[i][1] to celestialArrangements[i][0] + celestialArrangements[i][1], inclusively.

Yet, amidst this celestial ballet, a quest awaits. Adventurers must discern the mystical allure of those coordinates touched by the singular radiance of exactly one orb.

For original prompt, pls refer to source images ˚₊‧꒰ა🐸໒꒱ ‧₊˚

Function

lamps(lightSources: int[][]) → int

Examples

Example 1

lightSources = [[-2, 3], [2, 3], [2, 1]]return = 6

For a set of luminous orbs with their respective radii, represented as [[-2, 3], [2, 3], [2, 1]], the resulting illumination yields 6 distinct sections. In the visual depiction, both overlapping and separate illuminated areas are observed, extending along the coordinate line from -6 to 6.

Constraints

Unknown for now