# Answer to Question #53991 in C for xxx

Question #53991

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.

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.

Expert's answer

## Comments

## Leave a comment