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Codingame : Defibrillators Solution
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import java.util.*; | |
import java.io.*; | |
import java.math.*; | |
/** | |
* Auto-generated code below aims at helping you parse | |
* the standard input according to the problem statement. | |
**/ | |
class Solution { | |
public static void main(String args[]) { | |
Scanner in = new Scanner(System.in); | |
String LON = in.next(); | |
String LAT = in.next(); | |
int N = in.nextInt(); | |
in.nextLine(); | |
List<String> defibrilateurs = new ArrayList<String>(); | |
for (int i = 0; i < N; i++) { | |
String DEFIB = in.nextLine(); | |
defibrilateurs.add(DEFIB); | |
} | |
String answer = "unknow"; | |
double distance = Double.MAX_VALUE; | |
double longitudeUser = Math.toRadians(Double.parseDouble(LON.replace(",", "."))); | |
double latitudeUser = Math.toRadians(Double.parseDouble(LAT.replace(",", "."))); | |
for (String defib : defibrilateurs) { | |
double longitudeDefib = Math.toRadians(Double.parseDouble(defib.split(";")[4].replace(",", "."))); | |
double latitudeDefib = Math.toRadians(Double.parseDouble(defib.split(";")[5].replace(",", "."))); | |
double x = (longitudeDefib - longitudeUser)*Math.cos((latitudeUser+latitudeDefib)/2); | |
double y = (latitudeDefib - latitudeUser); | |
double d = (Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2)))*6371; | |
if (d < distance) { | |
distance = d; | |
answer = defib.split(";")[1]; | |
} | |
} | |
System.out.println(answer); | |
} | |
} |
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