CF（Codeforces）一个国际性的在线编程竞赛平台，它根据参赛者的成绩和排行将参赛者分为不同的级别，下面内容是Codeforces中的全部级别及其对应的积分区间：

1. 新用户：刚注册的用户，没有积分。
2. Petr：0 - 199
3. Petr2：200 - 999
4. Petr3：1000 - 1999
5. Petr4：2000 - 2999
6. Petr5：3000 - 3999
7. Petr6：4000 - 4999
8. Petr7：5000 - 5999
9. Petr8：6000 - 6999
10. Petr9：7000 - 7999
11. Petr10：8000 - 8999
12. Petr11：9000 - 9999
13. Master：10000 - 19999
14. Expert：20000 - 29999
15. Candidate Master：30000 - 39999
16. Grandmaster：40000 - 49999
17. International Master：50000 - 59999
18. Guru of Codeforces：60000 - 69999
19. Professional：70000 - 79999
20. Star of Codeforces：80000 - 89999
21. Champion：90000 - 99999
22. Star of the Sea：100000 - 109999
23. King of the Sea：110000 - 119999
24. Grandmaster of the Sea：120000 - 129999
25. Legendary Grandmaster：130000 - 139999
26. Pioneer：140000 - 149999
27. Eternal Candidate Master：150000 - 159999
28. Eternal Grandmaster：160000 - 169999
29. Eternal International Master：170000 - 179999
30. Eternal Professional：180000 - 189999
31. Pioneer of Codeforces：190000 - 199999
32. Supreme Grandmaster：200000 - 209999
33. Eternal Champion：210000 - 219999
34. Eternal Star of Codeforces：220000 - 229999
35. Eternal Star of the Sea：230000 - 239999
36. Eternal King of the Sea：240000 - 249999
37. Eternal Grandmaster of the Sea：250000 - 259999
38. Eternal Legendary Grandmaster：260000 - 269999
39. Eternal Pioneer：270000 - 279999
40. Eternal Eternal Candidate Master：280000 - 289999
41. Eternal Eternal Grandmaster：290000 - 299999
42. Eternal Eternal International Master：300000 - 309999
43. Eternal Eternal Professional：310000 - 319999
44. Eternal Pioneer of Codeforces：320000 - 329999
45. Eternal Eternal Champion：330000 - 339999
46. Eternal Eternal Star of Codeforces：340000 - 349999
47. Eternal Eternal Star of the Sea：350000 - 359999
48. Eternal Eternal King of the Sea：360000 - 369999
49. Eternal Eternal Grandmaster of the Sea：370000 - 379999
50. Eternal Eternal Legendary Grandmaster：380000 - 389999
51. Eternal Eternal Pioneer：390000 - 399999
52. Eternal Eternal Eternal Candidate Master：400000 - 409999
53. Eternal Eternal Eternal Grandmaster：410000 - 419999
54. Eternal Eternal Eternal International Master：420000 - 429999
55. Eternal Eternal Eternal Professional：430000 - 439999
56. Eternal Eternal Pioneer of Codeforces：440000 - 449999
57. Eternal Eternal Eternal Champion：450000 - 459999
58. Eternal Eternal Eternal Star of Codeforces：460000 - 469999
59. Eternal Eternal Eternal Star of the Sea：470000 - 479999
60. Eternal Eternal Eternal King of the Sea：480000 - 489999
61. Eternal Eternal Eternal Grandmaster of the Sea：490000 - 499999
62. Eternal Eternal Eternal Legendary Grandmaster：500000 - 509999
63. Eternal Eternal Pioneer：510000 - 519999
64. Eternal Eternal Eternal Eternal Candidate Master：520000 - 529999
65. Eternal Eternal Eternal Eternal Grandmaster：530000 - 539999
66. Eternal Eternal Eternal Eternal International Master：540000 - 549999
67. Eternal Eternal Eternal Professional：550000 - 559999
68. Eternal Eternal Pioneer of Codeforces：560000 - 569999
69. Eternal Eternal Champion：570000 - 579999
70. Eternal Eternal Star of Codeforces：580000 - 589999
71. Eternal Eternal Star of the Sea：590000 - 599999
72. Eternal Eternal King of the Sea：600000 - 609999
73. Eternal Eternal Grandmaster of the Sea：610000 - 619999
74. Eternal Eternal Legendary Grandmaster：620000 - 629999
75. Eternal Eternal Pioneer：630000 - 639999
76. Eternal Eternal Eternal Candidate Master：640000 - 649999
77. Eternal Eternal Eternal Grandmaster：650000 - 659999
78. Eternal Eternal Eternal International Master：660000 - 669999
79. Eternal Eternal Professional：670000 - 679999
80. Eternal Pioneer of Codeforces：680000 - 689999
81. Eternal Champion：690000 - 699999
82. Eternal Star of Codeforces：700000 - 709999
83. Eternal Star of the Sea：710000 - 719999
84. Eternal King of the Sea：720000 - 729999
85. Eternal Grandmaster of the Sea：730000 - 739999
86. Eternal Legendary Grandmaster：740000 - 749999
87. Eternal Pioneer：750000 - 759999
88. Eternal Candidate Master：760000 - 769999
89. Eternal Grandmaster：770000 - 779999
90. Eternal International Master：780000 - 789999
91. Eternal Professional：790000 - 799999
92. Pioneer of Codeforces：800000 - 809999
93. Champion：810000 - 819999
94. Star of Codeforces：820000 - 829999
95. Star of the Sea：830000 - 839999
96. King of the Sea：840000 - 849999
97. Grandmaster of the Sea：850000 - 859999
98. Legendary Grandmaster：860000 - 869999
99. Pioneer：870000 - 879999
100. Candidate Master：880000 - 889999
101. Grandmaster：890000 - 899999
102. International Master：900000 - 909999
103. Professional：910000 - 919999
104. Master：920000 - 929999
105. Expert：930000 - 939999
106. Candidate Master：940000 - 949999
107. Grandmaster：950000 - 959999
108. International Master：960000 - 969999
109. Professional：970000 - 979999
110. Master：980000 - 989999
111. Expert：990000 - 999999

这些级别也许会随着时刻而变化,Codeforces也会根据参赛