How should I practice Triangle and Points?

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

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Problem · Geometry

Triangle and Points

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● EasyGRGreyOrangeOA

Problem statement

You are given the coordinates of a triangle with three vertices:

(x1, y1)
(x2, y2)
(x3, y3)

You are also given two points:

Point p = (xp, yp)
Point q = (xq, yq)

Return the following code:

Return 1 if the three vertices cannot form a triangle.
Return 2 if both p and q lie inside the triangle.
Return 3 if only p lies inside the triangle.
Return 4 if only q lies inside the triangle.
Return 5 if neither point lies inside the triangle.

Boundary rule: A point on an edge or exactly on a vertex is considered inside the triangle.

Input: The triangle coordinates x1, y1, x2, y2, x3, y3, followed by the point coordinates xp, yp, xq, yq.

Function

triangleAndPoints(x1: int, y1: int, x2: int, y2: int, x3: int, y3: int, xp: int, yp: int, xq: int, yq: int) → int

Examples

Example 1

x1 = 0y1 = 0x2 = 5y2 = 0x3 = 0y3 = 5xp = 1yp = 1xq = 6yq = 6return = 3

Only point p lies inside the triangle.

Problem statement

Function

Examples

Example 1

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