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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone {
  6.   public static void main (String[] args) throws java.lang.Exception {
  7.     var str = "a.b.c..d..!..e!!...!!!f....!!.!!!...";
  8.     var res = (str + ".!").replaceAll("..$|\\.(?=.*?(!))|!(?=.*(\\.))", "$1$2");
  9.  
  10.     System.out.println(str);
  11.     System.out.println(res);
  12.   }
  13. }
Success #stdin #stdout 0.12s 50376KB
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stdin
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Standard input is empty
stdout
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a.b.c..d..!..e!!...!!!f....!!.!!!...
a!b!c!!d!!.!!e..!!!...f!!!!..!...!!!
https://ideone.com/prUYqn
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
public

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