| # | User | Rating |
|---|---|---|
| 1 | tourist | 3947 |
| 2 | ecnerwala | 3654 |
| 3 | jiangly | 3627 |
| 4 | jqdai0815 | 3620 |
| 5 | orzdevinwang | 3612 |
| 6 | Benq | 3586 |
| 7 | Radewoosh | 3582 |
| 8 | Geothermal | 3569 |
| 8 | cnnfls_csy | 3569 |
| 10 | ksun48 | 3474 |
| # | User | Contrib. |
|---|---|---|
| 1 | awoo | 162 |
| 2 | maomao90 | 160 |
| 3 | adamant | 156 |
| 4 | maroonrk | 153 |
| 4 | atcoder_official | 153 |
| 6 | -is-this-fft- | 148 |
| 6 | SecondThread | 148 |
| 8 | Petr | 147 |
| 9 | nor | 145 |
| 10 | cry | 144 |
This was showing the entire time during todays contest ,and couldn't submit more than problem A! As I was facing this problem, I thought everyone was facing this issue, But when the contest ended it looked like I was the only one who was suffering from this! 
)
what should I do to avoid this ?
You can try signing in and giving contest through incognito mode, that has helped me sometimes. Also a stronger internet connection (if possible) helps. Other than that, I don't have any idea and just suffer my bad luck when it happens.
Try using m1.codeforces.com . It worked for me.
Do not use college wifi as it can be problem as many students try from same network.