# Answer to Question #53961 in C++ for sindhuja

Question #53961

Zeze has developed a new game called 2D-Zombie World. The objective of the game is to kill all zombies within a certain distance subject to certain conditions. More formally,

• N represents the total number of zombies

• D defines the Euclidean distance the player can move

• P represents the initial energy level a player starts with

• (X, Y) represents the position of the player

• Ei defines the energy of the i-th zombie

• (Xi, Yi) represents the position of the i-th zombie

If player's energy is equal to or greater than a zombie's energy AND the zombie is reachable in the 2D-space measured by the Euclidean distance, then the player is said to be capable of defeating the zombie.

Your task is to find out how many zombies a player can defeat.

Input Format:

First line of input comprises of number of test cases (T).

Each test case consists of three parts:

1. The first line contains (X, Y, P)

2. Second line contains N and D

3. N-lines in the format (Xi, Yi, Ei) in that test case.

• N represents the total number of zombies

• D defines the Euclidean distance the player can move

• P represents the initial energy level a player starts with

• (X, Y) represents the position of the player

• Ei defines the energy of the i-th zombie

• (Xi, Yi) represents the position of the i-th zombie

If player's energy is equal to or greater than a zombie's energy AND the zombie is reachable in the 2D-space measured by the Euclidean distance, then the player is said to be capable of defeating the zombie.

Your task is to find out how many zombies a player can defeat.

Input Format:

First line of input comprises of number of test cases (T).

Each test case consists of three parts:

1. The first line contains (X, Y, P)

2. Second line contains N and D

3. N-lines in the format (Xi, Yi, Ei) in that test case.

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