Top Countries
| Countries | Solved |
|---|---|
| Bangladesh | 156k |
| India | 897 |
| United Kingdom | 738 |
| United States | 267 |
| Germany | 207 |
| Japan | 202 |
| North Korea | 150 |
| Ghana | 149 |
| China | 138 |
| Singapore | 107 |
| Ukraine | 99 |
| France | 95 |
| Bhutan | 91 |
| Vietnam | 88 |
| Belarus | 71 |
| Russia | 67 |
| Canada | 63 |
| Israel | 63 |
| Netherlands | 54 |
| Czech Republic | 49 |
| Kyrgyzstan | 47 |
| Poland | 45 |
| Azerbaijan | 42 |
| Cuba | 37 |
| Algeria | 35 |
| Taiwan | 32 |
| Kazakhstan | 32 |
| Morocco | 30 |
| Indonesia | 27 |
| Italy | 27 |
| Uganda | 25 |
| Malaysia | 24 |
| Hong Kong | 23 |
| Philippines | 17 |
| Thailand | 15 |
| Turkey | 15 |
| Dominican Republic | 13 |
| Pakistan | 13 |
| Romania | 12 |
| Nepal | 11 |
| Mexico | 10 |
| Spain | 9 |
| Sri Lanka | 8 |
| Australia | 8 |
| Chad | 8 |
| Brazil | 7 |
| Iran | 7 |
| Argentina | 6 |
| Uzbekistan | 6 |
| Antarctica | 6 |
