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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main {
  6. 	public static void main (String[] args) {
  7. 		Scanner scan = new Scanner(System.in);
  8. 		int n = scan.nextInt();
  9. 		int m = 1;
  10. 		while (true) {
  11. 			if (m < 10) {	//1 digit
  12. 				n -= 1;
  13. 			} else if (m < 100) {	//2 digits
  14. 				n -= 2;
  15. 			} else if (m < 1000) {	//3 digits
  16. 				n -= 3;
  17. 			} else {	//4 digits
  18. 				n -= 4;
  19. 			}
  20. 			if (n < 0) {
  21. 				m = 0;
  22. 			}
  23. 			if (n <= 0) {
  24. 				break;
  25. 			}
  26. 			m++;
  27. 		}
  28. 		System.out.print(m);
  29. 	}
  30. }
Success #stdin #stdout 0.16s 321344KB
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Standard output is empty
https://ideone.com/XR4AQk
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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