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- public static String printAns(Map<String, List<String>> mp){
- StringBuilder sb = new StringBuilder();
- sb.append('{');
- Object[] keys = mp.keySet().toArray();
- Arrays.sort(keys);
- for(Object item : keys){
- sb.append('\'').append(item).append('\'').append(':').append(' ');
- List<String> li = mp.get(item);
- if(li.size() > 1){
- sb.append('[');
- for(String p : li){
- sb.append('\'').append(p).append('\'');
- sb.append(',');
- sb.append(' ');
- }
- sb.deleteCharAt(sb.length()-1);
- sb.deleteCharAt(sb.length()-1);
- sb.append(']');
- } else{
- sb.append('\'').append(li.get(0)).append('\'');
- }
- sb.append(',');
- sb.append(' ');
- }
- sb.deleteCharAt(sb.length()-1);
- sb.deleteCharAt(sb.length()-1);
- sb.append('}');
- return sb.toString();
- }
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