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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone {
  9.  
  10. 	public static void main (String[] args) throws java.lang.Exception {
  11.  
  12.         BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  13.  
  14.         Integer trimSize = null;
  15.  
  16.         while (in.ready()) {
  17.  
  18.         	String currentLine = in.readLine();
  19.  
  20.         	if (trimSize != null) {
  21.                 currentLine = currentLine.substring(0, trimSize);
  22.         	}
  23.  
  24.         	if (currentLine.startsWith("size:")) {
  25.         		trimSize = Integer.parseInt(currentLine.substring(5));
  26.         	}
  27.         	else {
  28.         		trimSize = null;
  29.         	}
  30.  
  31.             System.out.println(currentLine);
  32.  
  33.         }
  34.  
  35.     }
  36.  
  37. }
Success #stdin #stdout 0.07s 380224KB
comments (?)
stdin
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qqqqqqqqqqq
wwwwwwwwwwww
eeeeeeeee
size:10
текст у которого нужно отрезать 400 символов...
rrrrrrr
tttttt
yyyyyyyyy
stdout
copy 
qqqqqqqqqqq
wwwwwwwwwwww
eeeeeeeee
size:10
текст у ко
rrrrrrr
tttttt
yyyyyyyyy
https://ideone.com/PkIKMO
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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