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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. 	public static void main (String[] args) throws java.lang.Exception {
  10. 		Scanner in = new Scanner(System.in);
  11. 		int s = in.nextInt();
  12. 		int n = in.nextInt();
  13. 		int[] m = new int[n];
  14. 		for (int i = 0; i < n; i++) m[i] = in.nextInt();
  15. 		Arrays.sort(m);
  16. 		LinkedList<Integer> lx = new LinkedList<Integer>();
  17. 		LinkedList<Integer> ly = new LinkedList<Integer>();
  18. 		int j = n-1;
  19. 		for (int i = 0; i < n; i++) {
  20. 			while (j >= 0 && m[i] + m[j] >= s && m[i] < m[j]) {
  21. 				if (m[i]+m[j] == s) {
  22. 					lx.add(m[i]);
  23. 					ly.add(m[j]);
  24. 				}
  25. 				j--;
  26. 			}
  27. 		}
  28. 		for (int i = 0; i < lx.size(); i++){
  29. 			System.out.println(lx.get(i) + " + " + ly.get(i) + ";");
  30. 		} 
  31. 	}
  32. }
Success #stdin #stdout 0.1s 380736KB
comments (?)
stdin 
100
11
25 65 75 30 70 71 70 58 35 100 0
stdout 
0 + 100;
25 + 75;
30 + 70;
30 + 70;
35 + 65;
https://ideone.com/UEudJo
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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