Merge pull request ashutosh97#14 from zara-nicole/add-encoder

Encoder problem added

Author: ashutosh97

EncoderProblem/Encoder.java

@@ -0,0 +1,34 @@
+import java.util.*;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Encoder{
+
+  public static void main(String args[]){
+    String[] arr1 = new String[]{"a"};
+    String[] arr2 = new String[]{"1", "2", "3", "4"};
+    String[] x = new String[arr1.length];
+    x = encode(arr1,arr2);
+    System.out.println(Arrays.toString(x));
+  }
+
+
+  public static String[] encode(String[] raw, String[] code_words) {
+  
+  Map<String,String> map = new HashMap<String,String>();
+  String[] x = new String[raw.length];
+  for(int i=0; i<raw.length;i++) {
+    if(map.containsKey(raw[i])){
+      x[i] = map.get(raw[i]);
+      break;
+    } else {
+      map.put(raw[i],code_words[i]);
+      x[i] = map.get(raw[i]);
+    }
+  }
+  return x;
+}
+
+
+}
+

EncoderProblem/problem.txt

@@ -0,0 +1,7 @@
+
+Write a function that replaces the words in `raw` with the words in `code_words` such that the first occurrence of each word in `raw` is assigned the first unassigned word in `code_words`.
+
+
+encoder(["a"], ["1", "2", "3", "4"]) → ["1"]
+encoder(["a", "b"], ["1", "2", "3", "4"]) → ["1", "2"]
+encoder(["a", "b", "a"], ["1", "2", "3", "4"]) → ["1", "2", "1"]