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  1. import java.util.*;
  2. import java.util.stream.*;
  3. import java.lang.*;
  4. import java.io.*;
  5.  
  6. class Ideone {
  7.   public static void main (String[] args) throws java.lang.Exception {
  8.     int l = -1000000000, r = 1000000000;
  9.     long res = LongStream.range(l, r+1).sum();
  10.     System.out.println(res);
  11.   }
  12. }
Success #stdin #stdout 3.65s 48424KB
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https://ideone.com/EUuKzG
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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