Added 2 solutions

Author: varunu28

Medium/Making File Names Unique.java

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+class Solution {
+  public String[] getFolderNames(String[] names) {
+    int n = names.length;
+    Map<String, Integer> map = new HashMap<>();
+    String[] ans = new String[n];
+    for (int i = 0; i < n; i++) {
+      if (map.containsKey(names[i])) {
+        Integer val = map.get(names[i]);
+        StringBuilder sb = new StringBuilder(names[i]);
+        sb.append('(').append(val).append(')');
+        while (map.containsKey(sb.toString())) {
+          val++;
+          sb = new StringBuilder(names[i]);
+          sb.append('(').append(val).append(')');
+        }
+        ans[i] = sb.toString();
+        map.put(sb.toString(), 1);
+        map.put(names[i], val + 1);
+      }
+      else {
+        ans[i] = names[i];
+        map.put(names[i], 1);
+      }
+    }
+    return ans;
+  }
+}

Medium/Print Words Vertically.java

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+class Solution {
+  public List<String> printVertically(String s) {
+    String[] words = s.split("\\s+");
+    int longestWordLength = 0;
+    for (String word : words) {
+      longestWordLength = Math.max(longestWordLength, word.length());
+    }
+    List<String> ans = new ArrayList<>();
+    for (int i = 0; i < longestWordLength; i++) {
+      StringBuilder sb = new StringBuilder();
+      for (String word : words) {
+        sb.append(i < word.length() ? word.charAt(i) : " ");
+      }
+      while (sb.charAt(sb.length() - 1) == ' ') {
+        sb.deleteCharAt(sb.length() - 1);
+      }
+      if (sb.length() > 0) {
+        ans.add(sb.toString());
+      }
+    }
+    return ans;
+  }
+}