hackerrank-java/src/DataStructure/JavaPriorityQueue.java at master · sonmez-hakan/hackerrank-java · GitHub

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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}
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packageDataStructure;

importjava.util.ArrayList;
importjava.util.List;
importjava.util.Scanner;
importjava.util.Comparator;
importjava.util.PriorityQueue;

classStudent3 {
finalprivateintid;
finalprivateStringname;
finalprivatedoublecgpa;

publicStudent3(intid, Stringname, doublecgpa) {
super();
this.id = id;
this.name = name;
this.cgpa = cgpa;
 }

publicintgetID() {
returnid;
 }

publicStringgetName() {
returnname;
 }

publicdoublegetCGPA() {
returncgpa;
 }
}

classChecker3implementsComparator<Student3> {
@Override
publicintcompare(Student3s1, Student3s2) {
if (s1.getCGPA() < s2.getCGPA()) {
return1;
 }

if (s1.getCGPA() == s2.getCGPA()) {
intcomp = s1.getName().compareTo(s2.getName());
if (comp == 0) {
returns1.getID() > s2.getID() ? 1 : -1;
 }

returncomp;
 }

return -1;
 }
}

classPriorities {
publicList<Student3> getStudents(List<String> events) {
PriorityQueue<Student3> queue = newPriorityQueue<>(newChecker3());
for (Strings : events) {

if ("SERVED".equals(s)) {
queue.poll();
 } else {
String[] parts = s.split(" ");
queue.add(newStudent3(
Integer.parseInt(parts[3]),
parts[1],
Double.parseDouble(parts[2])
 ));
 }
 }

List<Student3> students = newArrayList<>();
while (!queue.isEmpty()) {
students.add(queue.poll());
 }

returnstudents;
 }
}

publicclassJavaPriorityQueue {
privatefinalstaticScannerscan = newScanner(System.in);
privatefinalstaticPrioritiespriorities = newPriorities();

publicstaticvoidmain(String[] args) {
inttotalEvents = Integer.parseInt(scan.nextLine());
List<String> events = newArrayList<>();

while (totalEvents-- != 0) {
Stringevent = scan.nextLine();
events.add(event);
 }

List<Student3> students = priorities.getStudents(events);

if (students.isEmpty()) {
System.out.println("EMPTY");
 } else {
for (Student3st : students) {
System.out.println(st.getName());
 }
 }
 }
}