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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. class Ideone{
  5. 	public static void main (String[] args) throws java.lang.Exception{
  6. 		for(int i=0;i<50;i++){System.out.println(i + "\t" + T(i));}
  7. 	}
  8.  
  9. 	static boolean T(int i){char[]a=Integer.toString(i,2).toCharArray();int k=0;for(int j=0;j<a.length;j++){k+=a[j]=='1'?1:-1;}return k==0;}
  10. }
Success #stdin #stdout 0.09s 320576KB
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stdin
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Standard input is empty
stdout
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0	false
1	false
2	true
3	false
4	false
5	false
6	false
7	false
8	false
9	true
10	true
11	false
12	true
13	false
14	false
15	false
16	false
17	false
18	false
19	false
20	false
21	false
22	false
23	false
24	false
25	false
26	false
27	false
28	false
29	false
30	false
31	false
32	false
33	false
34	false
35	true
36	false
37	true
38	true
39	false
40	false
41	true
42	true
43	false
44	true
45	false
46	false
47	false
48	false
49	true
https://ideone.com/xbeO8a
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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