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securedoors.java
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securedoors.java
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import java.util.*;
public class securedoors{
public static void main(String []args){
Scanner scan = new Scanner(System.in);
int testcase = Integer.parseInt(scan.nextLine());
Map< String,Boolean> employee = new HashMap< String,Boolean>();
for (int i =0; i<testcase; i++){
String line [] = scan.nextLine().split(" ");
boolean at_work;
if (line[0].equals("entry")){
if (employee.containsKey(line[1])) {
boolean value = employee.get(line[1]);
if(value == true){
System.out.println(line[1]+" entered (ANOMALY)");
}
else{
System.out.println(line[1]+" entered");
}
}
else{
System.out.println(line[1]+" entered");
}
at_work = true;
}
else{
if (employee.containsKey(line[1])) {
boolean value = employee.get(line[1]);
if(value == true){
System.out.println(line[1]+" exited");
}
else{
System.out.println(line[1]+" exited (ANOMALY)");
}
}
else{
System.out.println(line[1]+" exited (ANOMALY)");
}
at_work = false;
}
employee.put(line[1],at_work);
}
scan.close();
}
public static void printMap(Map mp) {
Iterator it = mp.entrySet().iterator();
while (it.hasNext()) {
Map.Entry pair = (Map.Entry)it.next();
System.out.println(pair.getKey() + " = " + pair.getValue());
it.remove(); // avoids a ConcurrentModificationException
}
}
}