Created
March 23, 2019 19:25
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Find pair of Socks pair
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| import java.io.*; | |
| import java.math.*; | |
| import java.security.*; | |
| import java.text.*; | |
| import java.util.*; | |
| import java.util.concurrent.*; | |
| import java.util.regex.*; | |
| import java.lang.*; | |
| import java.util.List; | |
| import java.util.HashMap; | |
| import java.util.Map; | |
| import java.util.stream.Collectors; | |
| public class Solution { | |
| // Complete the sockMerchant function below. | |
| static int sockMerchant(int n, int[] ar) { | |
| Map<Integer,Integer> countt = new HashMap<Integer,Integer>(); | |
| boolean isEven =false; | |
| int counter=0; | |
| List<Integer> myTemp = new ArrayList<Integer>(); | |
| for(int i=0;i<n;i++) | |
| { | |
| myTemp.add(ar[i]); | |
| //System.out.println("Items"+ar[i]); | |
| } | |
| long l = myTemp.stream().distinct().count(); | |
| List<Integer> listDistinctInts = myTemp.stream().distinct().collect(Collectors.toList()); | |
| System.out.println("Unique :"+l); | |
| for(int i=0;i<listDistinctInts.size();i++) | |
| { | |
| int count =getCount(listDistinctInts.get(i),ar); | |
| System.out.println("No :"+listDistinctInts.get(i)+"| Count :"+count); | |
| int noOfOccurance=count/2; | |
| counter=counter+noOfOccurance; | |
| count=0; | |
| } | |
| return counter; | |
| } | |
| private static int getCount(int i, int[] ar) | |
| { | |
| int counter=0; | |
| System.out.println("Input Number :"+i+":"+ar.length); | |
| for(int j=0;j<ar.length;j++) | |
| { | |
| System.out.println("ar is"+ar[j]); | |
| if(i==ar[j]) | |
| { | |
| System.out.println("Match for"+i); | |
| counter++; | |
| } | |
| } | |
| System.out.println("Counter Value="+counter); | |
| return counter; | |
| } | |
| private static final Scanner scanner = new Scanner(System.in); | |
| public static void main(String[] args) throws IOException { | |
| BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH"))); | |
| int n = scanner.nextInt(); | |
| scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?"); | |
| int[] ar = new int[n]; | |
| String[] arItems = scanner.nextLine().split(" "); | |
| scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?"); | |
| for (int i = 0; i < n; i++) { | |
| int arItem = Integer.parseInt(arItems[i]); | |
| ar[i] = arItem; | |
| } | |
| int result = sockMerchant(n, ar); | |
| bufferedWriter.write(String.valueOf(result)); | |
| bufferedWriter.newLine(); | |
| bufferedWriter.close(); | |
| scanner.close(); | |
| } | |
| } |
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