| 4900 | NO ACM NO LIFE | 25.91%(100/386) |
| 4901 | The Romantic Hero | 43.33%(987/2278) |
| 4902 | Nice boat | 41.45%(1663/4012) |
| 4903 | The only survival | 48.02%(170/354) |
| 4904 | Hero’s assistant | 18.73%(47/251) |
| 4906 | Our happy ending | 35.36%(517/1462) |
| 4907 | Task schedule | 35.88%(1394/3885) |
| 4908 | BestCoder Sequence | 33.83%(749/2214) |
| 4909 | String | 30.09%(315/1047) |
| 4910 | Problem about GCD | 25.82%(329/1274) |
| 4911 | Inversion | 33.76%(4854/14377) |
| 4912 | Paths on the tree | 31.01%(904/2915) |
| 4913 | Least common multiple | 34.20%(436/1275) |
| 4914 | Linear recursive sequence | 34.25%(224/654) |
| 4915 | Parenthese sequence | 39.02%(769/1971) |
| 4916 | Count on the path | 21.17%(507/2395) |
| 4917 | Permutation | 32.48%(419/1290) |
| 4918 | Query on the subtree | 30.79%(810/2631) |
| 4919 | Exclusive or | 36.17%(370/1023) |
| 4920 | Matrix multiplication | 34.07%(2638/7744) |
| 4921 | Map | 33.86%(234/691) |
| 4922 | Hello, Your Package! | 4.73%(8/169) |
| 4923 | Room and Moor | 34.60%(599/1731) |
| 4924 | Football Manager | 30.84%(190/616) |
| 4925 | Apple Tree | 59.42%(924/1555) |
| 4926 | Robbery Plan | 18.57%(26/140) |
| 4927 | Series 1 | 31.59%(689/2181) |
| 4928 | Series 2 | 32.57%(285/875) |
| 4929 | Another Letter Tree | 22.84%(103/451) |
| 4930 | Fighting the Landlords | 35.73%(635/1777) |
| 4931 | Happy Three Friends | 71.78%(885/1233) |
| 4932 | Miaomiao's Geometry | 25.35%(656/2588) |
| 4933 | Miaomiao's Function | 46.67%(217/465) |
| 4934 | Protocol Buffers | 6.43%(11/171) |
| 4935 | Prime Tree | 12.55%(103/821) |
| 4936 | Rainbow Island | 41.29%(64/155) |
| 4937 | Lucky Number | 30.21%(633/2095) |
| 4938 | Seeing People | 31.78%(204/642) |
| 4939 | Stupid Tower Defense | 28.39%(730/2571) |
| 4940 | Destroy Transportation system | 50.05%(513/1025) |
| 4941 | Magical Forest | 44.35%(969/2185) |
| 4942 | Game on S♂play | 21.91%(225/1027) |
| 4943 | K-th good string | 13.13%(55/419) |
| 4944 | FSF’s game | 49.55%(660/1332) |
| 4945 | 2048 | 26.78%(514/1919) |
| 4946 | Area of Mushroom | 21.66%(1069/4935) |
| 4947 | GCD Array | 32.26%(609/1888) |
| 4948 | Kingdom | 47.00%(384/817) |
| 4949 | Light | 31.48%(136/432) |
| 4950 | Monster | 30.50%(1012/3318) |
| 4951 | Multiplication table | 24.71%(427/1728) |
| 4952 | Number Transformation | 42.30%(818/1934) |
| 4953 | Periodic Binary String | 8.14%(7/86) |
| 4954 | Permanent | 24.08%(46/191) |
| 4955 | Tree | 34.25%(125/365) |
| 4956 | Poor Hanamichi | 47.41%(521/1099) |
| 4957 | Poor Mitsui | 8.10%(117/1445) |
| 4958 | Poor Rukaw | 46.22%(104/225) |
| 4959 | Poor Akagi | 44.06%(167/379) |
| 4960 | Another OCD Patient | 35.43%(806/2275) |
| 4961 | Boring Sum | 46.27%(787/1701) |
| 4962 | Closed Paths | 34.69%(136/392) |
| 4963 | Dividing a String | 19.61%(220/1122) |
| 4964 | Emmet | 39.88%(402/1008) |
| 4965 | Fast Matrix Calculation | 44.12%(1509/3420) |
| 4966 | GGS-DDU | 48.57%(629/1295) |
| 4967 | Handling the Past | 46.05%(309/671) |
| 4968 | Improving the GPA | 69.19%(694/1003) |
| 4969 | Just a Joke | 44.38%(568/1280) |
| 4970 | Killing Monsters | 34.88%(1646/4719) |
| 4971 | A simple brute force problem. | 54.51%(514/943) |
| 4972 | A simple dynamic programming problem | 28.61%(553/1933) |
| 4973 | A simple simulation problem. | 35.93%(559/1556) |
| 4974 | A simple water problem | 52.22%(716/1371) |
| 4975 | A simple Gaussian elimination problem. | 30.56%(666/2179) |
| 4976 | A simple greedy problem. | 37.13%(261/703) |
| 4977 | A simple problem from ZOJ. | 15.02%(44/293) |
| 4978 | A simple probability problem. | 55.20%(297/538) |
| 4979 | A simple math problem. | 38.08%(238/625) |
| 4980 | A simple graph problem. | 29.19%(101/346) |
| 4981 | Goffi and Median | 50.90%(647/1271) |
| 4982 | Goffi and Squary Partition | 34.15%(558/1634) |
| 4983 | Goffi and GCD | 37.13%(907/2443) |
| 4984 | Goffi and Graph | 34.56%(141/408) |
| 4985 | Little Pony and Permutation | 52.93%(488/922) |
| 4986 | Little Pony and Alohomora Part I | 54.47%(347/637) |
| 4987 | Little Pony and Dice | 29.92%(251/839) |
| 4988 | Little Pony and Boast Busters | 44.13%(109/247) |
| 4989 | Summary | 47.28%(895/1893) |
| 4990 | Reading comprehension | 39.05%(1906/4881) |
| 4991 | Ordered Subsequence | 47.15%(496/1052) |
| 4992 | Primitive Roots | 27.54%(537/1950) |
| 4993 | Revenge of ex-Euclid | 58.92%(773/1312) |
| 4994 | Revenge of Nim | 52.44%(472/900) |
| 4995 | Revenge of kNN | 26.45%(247/934) |
| 4996 | Revenge of LIS | 43.17%(98/227) |
| 4997 | Biconnected | 70.60%(293/415) |
| 4998 | Rotate | 44.02%(670/1522) |
| 4999 | Overt | 46.25%(74/160) |
