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  1. let line;
  2.  
  3. while ((line = readline()) !== null) {
  4.     const counts = new Map();
  5.  
  6.     for (const ch of line) {
  7.         counts.set(ch, (counts.get(ch) || 0) + 1);
  8.     }
  9.  
  10.     let shouldPrint = false;
  11.  
  12.     for (const count of counts.values()) {
  13.         if (count === 2) {
  14.             shouldPrint = true;
  15.             break;
  16.         }
  17.     }
  18.  
  19.     if (shouldPrint) {
  20.         print(line);
  21.     }
  22. }
Success #stdin #stdout 0.03s 16856KB
comments (?)
stdin
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asdf
fdas
asds
d fm
dfaa
aaaa
aabb
aaabb
stdout
copy 
asds
dfaa
aabb
aaabb
https://ideone.com/2ZetMg
language:
JavaScript (SMonkey 60.2.3)
created:
1 day ago
visibility:
public

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