HighLoad Challenges for Fun
Join a global community of top software engineers, sharpen your skills, and write the fastest code. The challenge awaits you!
Leaderboard
| # | User | Level | RP |
|---|---|---|---|
| 4 | Master | 171'849.15 | |
| 5 | Master | 112'139.24 | |
| 6 | Master | 93'763.05 | |
| 7 | Expert | 79'749.45 | |
| 8 | Expert | 70'595.55 | |
| 9 | Expert | 63'962.10 | |
| 10 | Expert | 62'052.94 | |
| 11 | Expert | 55'775.54 | |
| 12 | Expert | 54'673.22 | |
| 13 | Expert | 43'648.02 | |
| 14 | Expert | 43'015.79 | |
| 15 | Expert | 39'508.37 | |
| 16 | Expert | 35'241.89 | |
| 17 | Expert | 33'000.33 | |
| 18 | Expert | 31'099.94 | |
| 19 | Expert | 30'846.08 | |
| 20 | Expert | 30'294.57 | |
| 21 | Skilled | 29'573.65 | |
| 22 | Skilled | 29'279.37 | |
| 23 | Skilled | 28'960.54 | |
| 24 | Skilled | 27'360.04 | |
| 25 | Skilled | 26'758.33 | |
| 26 | Skilled | 26'483.79 | |
| 27 | Skilled | 25'989.47 | |
| 28 | Skilled | 24'290.64 | |
| 29 | Skilled | 23'931.76 | |
| 30 | Skilled | 22'602.81 | |
| 31 | Skilled | 21'885.68 | |
| 32 | Skilled | 21'694.09 | |
| 33 | Skilled | 21'205.42 | |
| 34 | Skilled | 20'972.50 | |
| 35 | Skilled | 20'737.27 | |
| 36 | Skilled | 20'397.31 | |
| 37 | Skilled | 19'732.67 | |
| 38 | Skilled | 19'402.54 | |
| 39 | Skilled | 18'469.41 | |
| 40 | Skilled | 18'071.79 | |
| 41 | Skilled | 17'158.19 | |
| 42 | Skilled | 17'149.70 | |
| 43 | Skilled | 16'083.10 | |
| 44 | Skilled | 15'457.71 | |
| 45 | Skilled | 14'906.90 | |
| 46 | Skilled | 14'900.46 | |
| 47 | Skilled | 14'037.47 | |
| 48 | Skilled | 13'796.45 | |
| 49 | Skilled | 12'288.85 | |
| 50 | Skilled | 12'227.33 | |
| 51 | Skilled | 12'195.91 | |
| 52 | Skilled | 11'504.53 | |
| 53 | Skilled | 11'095.96 | |
| 54 | Skilled | 10'852.42 | |
| 55 | Skilled | 10'503.81 | |
| 56 | Skilled | 10'421.84 | |
| 57 | Skilled | 10'397.64 | |
| 58 | Skilled | 10'153.98 | |
| 59 | Skilled | 10'000.36 | |
| 60 | Skilled | 9'989.98 | |
| 61 | Skilled | 9'847.34 | |
| 62 | Skilled | 9'727.27 | |
| 63 | Skilled | 9'104.32 | |
| 64 | Skilled | 8'963.54 | |
| 65 | Skilled | 8'887.79 | |
| 66 | Skilled | 8'699.82 | |
| 67 | Skilled | 8'609.66 | |
| 68 | Skilled | 8'537.49 | |
| 69 | Skilled | 8'182.45 | |
| 70 | Skilled | 8'182.42 | |
| 71 | Skilled | 7'877.06 | |
| 72 | Skilled | 7'787.22 | |
| 73 | Skilled | 7'731.38 | |
| 74 | Skilled | 7'468.14 | |
| 75 | Skilled | 7'044.13 | |
| 76 | Skilled | 6'986.70 | |
| 77 | Skilled | 6'711.21 | |
| 78 | Skilled | 6'424.73 | |
| 79 | Skilled | 6'296.01 | |
| 80 | Skilled | 6'206.20 | |
| 81 | Skilled | 6'048.21 | |
| 82 | Skilled | 5'994.08 | |
| 83 | Skilled | 5'958.10 | |
| 84 | Apprentice | 5'842.54 | |
| 85 | Apprentice | 5'822.74 | |
| 86 | Apprentice | 5'765.36 | |
| 87 | Apprentice | 5'748.80 | |
| 88 | Apprentice | 5'642.02 | |
| 89 | Apprentice | 5'556.90 | |
| 90 | Apprentice | 5'267.02 | |
| 91 | Apprentice | 5'091.67 | |
| 92 | Apprentice | 4'949.69 | |
| 93 | Apprentice | 4'932.94 | |
| 94 | Apprentice | 4'904.27 | |
| 95 | Apprentice | 4'784.67 | |
| 96 | Apprentice | 4'778.86 | |
| 97 | Apprentice | 4'730.65 | |
| 98 | Apprentice | 4'694.19 | |
| 99 | Apprentice | 4'612.87 | |
| 100 | Apprentice | 4'458.16 |
News
A new computed task Group by sum was published
🚀 New challenge type: Server Competitions! Until now you’ve optimized programs - now you optimize whole servers. Our first one is live: Auth Server. Build an HTTP authentication server, package it as a Docker image, and docker push it to our registry - every push is automatically benchmarked against a freshly generated, hidden dataset, so there’s nothing to overfit. Lowest total request time wins. Grab the API spec and climb the leaderboard!
🎉5 years of HighLoad.Fun!🎉 Half a decade ago, the domain was registered - and what started as an idea has grown into a community of engineers obsessed with squeezing every last nanosecond out of their code. Thanks for being here.
The 2025 leaderboard is officially closed! Explore the final results by visiting this link. Share your certificates proudly—they will stay available as long as the site is live!
The 2024 leaderboard is officially closed! Explore the final results by visiting this link. Share your certificates proudly—they will stay available as long as the site is live!
Recent Discussions
Recent Submissions
View all → | Mark Korneichik→Sort UUIDsRUST 18 minutes ago | Error |
 | izotoff→Unique stringsGO 24 minutes ago | Success |
 | e1011→Unique stringsCPP 28 minutes ago | Success |
| Mark Korneichik→Sort UUIDsRUST 29 minutes ago | Error |
| izotoff→Sum of prime numbersGO 30 minutes ago | Success |
| Mark Korneichik→Sort UUIDsRUST 40 minutes ago | Error |
| Mark Korneichik→Sort UUIDsRUST 42 minutes ago | Error |
| izotoff→Unique stringsGO 47 minutes ago | Success |
| Mark Korneichik→Sort UUIDsRUST 50 minutes ago | Error |
| izotoff→Unique stringsGO 1 hour ago | Success |
Recent Solution Challenges
View all → | Kacpxer-10.00→highload-churner·Parse integers 1 day ago | Solution Held |
 | Andrew Epstein-17.57→Kevin Heavey·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-17.83→Aleksei Shahoika·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-17.82→Dominique Garmier·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-12.87→Charles Cabergs·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-13.52→Aniruddha Deb·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-10.00→Tomislav Tunkovic·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-29.26→janwww·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-10.00→Mark Korneichik·Fizz Buzzgen 1 day ago | Solution Held |
| Andrew Epstein-10.00→janwww·Blue color from RGBgen 1 day ago | Solution Held |