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Contacts.java
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102 lines (79 loc) · 2.39 KB
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package com.problems.hackerrank;
import java.util.Arrays;
public class Contacts {
class Node{
int count;
Node[] children;
Node(){
this.count = 0;
this.children = new Node[26];
Arrays.fill(children, null);
}
public void insert(Node current, String value){
for(char c : value.toCharArray()){
int index = c - 'a';
if(current.children[index] == null){
current.children[index] = new Node();
}
current.children[index].count++;
current = current.children[index];
}
}
}
}
/*
import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;
*/
/*
class Result {
*/
/*
* Complete the 'contacts' function below.
*
* The function is expected to return an INTEGER_ARRAY.
* The function accepts 2D_STRING_ARRAY queries as parameter.
*//*
public static List<Integer> contacts(List<List<String>> queries) {
// Write your code here
}
}
*/
/*
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
int queriesRows = Integer.parseInt(bufferedReader.readLine().trim());
List<List<String>> queries = new ArrayList<>();
IntStream.range(0, queriesRows).forEach(i -> {
try {
queries.add(
Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
.collect(toList())
);
} catch (IOException ex) {
throw new RuntimeException(ex);
}
});
List<Integer> result = Result.contacts(queries);
bufferedWriter.write(
result.stream()
.map(Object::toString)
.collect(joining("\n"))
+ "\n"
);
bufferedReader.close();
bufferedWriter.close();
}
}
*/