| | namdung | | 38 | 36,408 |
| | levietbao | | 18 | 31,026 |
| | 99 | 08-01-2014 07:53 PM bởi pega94 | 3 | 10,705 |
| | pte.alpha | | 166 | 102,362 |
| | emptyhands7697 | 12-11-2012 09:19 PM bởi TrauBo | 34 | 34,222 |
|
| | batigoal | | 40 | 11,942 |
| | batigoal | 18-05-2012 09:37 PM bởi 99 | 4 | 4,374 |
| | ngocthi0101 | | 7 | 4,386 |
| | 99 | 16-05-2012 12:03 AM bởi 99 | 18 | 10,828 |
| | inuyashahot | | 5 | 3,869 |
| | pvthuan | | 3 | 3,632 |
| | neo_hv | 07-05-2012 07:45 PM bởi 99 | 17 | 5,631 |
| | hakudoshi | | 33 | 8,796 |
| | hansongkyung | 27-04-2012 02:29 AM bởi 99 | 2 | 2,650 |
| | bamboosky | 07-04-2012 03:55 AM bởi sang89 | 6 | 3,532 |
| | hoduckhanhgx | | 1 | 3,057 |
| | hungqh | 03-04-2012 08:29 PM bởi hungqh | 0 | 2,660 |
| | conmeovochu | | 22 | 7,341 |
| | batigoal | | 1 | 2,697 |
| | batigoal | 08-03-2012 05:05 PM bởi 99 | 11 | 4,106 |
| | thinhptnk | 06-03-2012 07:31 PM bởi neo_hv | 3 | 3,322 |
| | BGD | | 21 | 7,350 |
| | hakudoshi | 01-03-2012 01:01 AM bởi 99 | 1 | 2,971 |
| | 4eyes_l0vely | | 0 | 2,751 |
| | very easy | | 7 | 6,448 |
| | 5434 | 13-02-2012 09:06 PM bởi 5434 | 3 | 2,509 |
| | batigoal | | 16 | 5,981 |
| | Nostalgia! | 04-02-2012 11:59 AM bởi neo_hv | 4 | 3,571 |
| | batigoal | | 75 | 32,310 |
| | 99 | | 4 | 5,009 |
| | modular | | 7 | 5,408 |
| | sinhvientoan | | 9 | 4,689 |
| | tuananh1486 | | 42 | 21,360 |
| | minhcanh2095 | | 6 | 4,704 |
| | Newmath | | 6 | 3,948 |
| | n.v.thanh | | 1 | 2,979 |
| | baotram | | 31 | 10,224 |
| | Haley | | 18 | 6,197 |
| | IMO | 21-10-2011 05:17 PM bởi IMO | 0 | 2,999 |
| | soros_fighter | | 4 | 3,920 |
| | vidai | | 56 | 20,329 |
| | minhhieu123 | 13-09-2011 07:55 PM bởi vinh1b | 4 | 4,362 |
| | barcapro | | 0 | 2,837 |
| | baotram | | 7 | 4,580 |
| | minhcanh2095 | | 23 | 17,912 |
| | PhamTruongDinh | 18-08-2011 03:02 PM bởi vghy94 | 5 | 3,929 |
| | Combinatorial@ | | 4 | 3,519 |
| | tiger3323551 | | 12 | 4,545 |
| | hangel_elf | | 0 | 2,795 |
| | vidai | | 14 | 5,645 |
| | vidai | | 1 | 2,776 |
| | vidai | | 11 | 4,407 |
| | H_scorpio_95 | | 3 | 3,836 |
| | Galois_vn | | 5 | 3,685 |
| | batigoal | | 45 | 15,284 |