Just felt like gathering some data about hacks. Parsed around ~400 last contests Probably it would be worth it to also include SFT, but whatever

## Last 100

**847** Educational Codeforces Round 96 (Rated for Div. 2)**30** Codeforces Global Round 11**248** Codeforces Round #674 (Div. 3)**0** 2020 ICPC, COMPFEST 12, Indonesia Multi-Provincial Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred)**97** Bubble Cup 13 — Finals [Online Mirror, unrated, Div. 2]**86** Bubble Cup 13 — Finals [Online Mirror, unrated, Div. 1]**20** Codeforces Round #675 (Div. 2)**1** Codeforces Round #672 (Div. 2)**70** Codeforces Round #671 (Div. 2)**58** Educational Codeforces Round 95 (Rated for Div. 2)**3** Codeforces Round #673 (Div. 2)**11** Codeforces Round #673 (Div. 1)**73** Codeforces Round #667 (Div. 3)**121** Grakn Forces 2020**4** Codeforces Round #669 (Div. 2)**5** Codeforces Round #670 (Div. 2)**23** Codeforces Round #668 (Div. 2)**4** Codeforces Round #668 (Div. 1)**0** Central-European Olympiad in Informatics, CEOI 2020, Day 2 (IOI, Unofficial Mirror Contest, Unrated)**0** Central-European Olympiad in Informatics, CEOI 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated)**19** Codeforces Round #665 (Div. 2)**407** Educational Codeforces Round 94 (Rated for Div. 2)**427** Codeforces Round #661 (Div. 3)**85** Educational Codeforces Round 93 (Rated for Div. 2)**73** Codeforces Round #666 (Div. 2)**9** Codeforces Round #666 (Div. 1)**22** Codeforces Round #664 (Div. 2)**22** Codeforces Round #664 (Div. 1)**11** Codeforces Round #662 (Div. 2)**923** Codeforces Global Round 10**7** Codeforces Round #663 (Div. 2)**116** Educational Codeforces Round 92 (Rated for Div. 2)**23** Codeforces Round #660 (Div. 2)**0** Baltic Olympiad in Informatics 2020, Day 2 (IOI, Unofficial Mirror Contest, Unrated)**0** Baltic Olympiad in Informatics 2020, Day 1 (IOI, Unofficial Mirror Contest, Unrated)**39** Codeforces Round #656 (Div. 3)**5** Codeforces Round #659 (Div. 2)**110** Codeforces Round #659 (Div. 1)**10** Codeforces Round #658 (Div. 2)**4** Codeforces Round #658 (Div. 1)**49** Educational Codeforces Round 91 (Rated for Div. 2)**18** Codeforces Round #657 (Div. 2)**0** ICPC Challenge 2020: Marathon**0** ICPC Challenge 2020**0** ICPC Challenge 2020: Practice**1** Codeforces Global Round 9**418** Codeforces Round #653 (Div. 3)**355** Educational Codeforces Round 90 (Rated for Div. 2)**13** Codeforces Round #655 (Div. 2)**2** Codeforces Round #654 (Div. 2)**19** Codeforces Round #651 (Div. 2)**37** Codeforces Round #652 (Div. 2)**9** Codeforces Global Round 8**256** Codeforces Round #650 (Div. 3)**1116** Educational Codeforces Round 89 (Rated for Div. 2)**22** Codeforces Round #648 (Div. 2)**35** Codeforces Round #649 (Div. 2)**34** Codeforces Round #646 (Div. 2)**7** Codeforces Round #647 (Div. 2) — Thanks, Algo Muse!**26** Codeforces Round #647 (Div. 1) — Thanks, Algo Muse!**314** Codeforces Round #644 (Div. 3)**321** Educational Codeforces Round 88 (Rated for Div. 2)**20** Codeforces Round #645 (Div. 2)**0** Microsoft Q# Coding Contest — Summer 2020**0** Microsoft Q# Coding Contest — Summer 2020 — Warmup**10** Codeforces Round #643 (Div. 2)**150** Educational Codeforces Round 87 (Rated for Div. 2)**127** Codeforces Round #642 (Div. 3)**141** Codeforces Round #640 (Div. 4)**9** Testing Round #16 (Unrated)**39** Codeforces Round #641 (Div. 2)**35** Codeforces Round #641 (Div. 1)**103** Codeforces Round #638 (Div. 2)**0** Kotlin Heroes: Practice 4**0** Kotlin Heroes: Episode 4**2** Codeforces Round #639 (Div. 2)**7** Codeforces Round #639 (Div. 1)**173** Codeforces Round #636 (Div. 3)**294** Educational Codeforces Round 86 (Rated for Div. 2)**58** Codeforces Round #637 (Div. 2) — Thanks, Ivan Belonogov!**63** Codeforces Round #637 (Div. 1) — Thanks, Ivan Belonogov!**4** Codeforces Round #633 (Div. 2)**3** Codeforces Round #633 (Div. 1)**49** Codeforces Round #635 (Div. 2)**5** Codeforces Round #635 (Div. 1)**191** Codeforces Round #634 (Div. 3)**2421** Educational Codeforces Round 85 (Rated for Div. 2)**30** Codeforces Round #632 (Div. 2)**10** Codeforces Round #630 (Div. 2)**0** April Fools Day Contest 2020**29** Codeforces Round #631 (Div. 2) — Thanks, Denis aramis Shitov!**7** Codeforces Round #631 (Div. 1) — Thanks, Denis aramis Shitov!**123** Codeforces Round #629 (Div. 3)**142** Educational Codeforces Round 84 (Rated for Div. 2)**197** Codeforces Global Round 7**34** Codeforces Round #628 (Div. 2)**1274** Codeforces Round #627 (Div. 3)**16** Codeforces Round #626 (Div. 2, based on Moscow Open Olympiad in Informatics)**8** Codeforces Round #626 (Div. 1, based on Moscow Open Olympiad in Informatics)**22** Codeforces Round #625 (Div. 2, based on Technocup 2020 Final Round)

## Top-100

**Educational Codeforces Round 85 (Rated for Div. 2)** 2421**CodeCraft-19 and Codeforces Round #537 (Div. 2)** 2342**Educational Codeforces Round 58 (Rated for Div. 2)** 1967**Codeforces Round #611 (Div. 3)** 1886**Educational Codeforces Round 61 (Rated for Div. 2)** 1837**Educational Codeforces Round 72 (Rated for Div. 2)** 1439**Codeforces Round #521 (Div. 3)** 1359**Educational Codeforces Round 55 (Rated for Div. 2)** 1354**Codeforces Round #505 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final)** 1317**Codeforces Round #627 (Div. 3)** 1274**Educational Codeforces Round 67 (Rated for Div. 2)** 1269**Codeforces Round #507 (Div. 2, based on Olympiad of Metropolises)** 1218**Codeforces Round #506 (Div. 3)** 1217**Codeforces Round #531 (Div. 3)** 1183**Educational Codeforces Round 89 (Rated for Div. 2)** 1116**Educational Codeforces Round 81 (Rated for Div. 2)** 1096**Educational Codeforces Round 47 (Rated for Div. 2)** 978**Codeforces Round #552 (Div. 3)** 949**Codeforces Round #504 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final)** 943**Codeforces Global Round 10** 923**Codeforces Round #555 (Div. 3)** 919**Codeforces Round #624 (Div. 3)** 911**Codeforces Round #560 (Div. 3)** 872**Educational Codeforces Round 52 (Rated for Div. 2)** 860**Educational Codeforces Round 96 (Rated for Div. 2)** 847**Codeforces Round #497 (Div. 2)** 819**Codeforces Round #570 (Div. 3)** 798**Codeforces Round #527 (Div. 3)** 796**Educational Codeforces Round 63 (Rated for Div. 2)** 790**Hello 2019** 785**Educational Codeforces Round 66 (Rated for Div. 2)** 782**Educational Codeforces Round 83 (Rated for Div. 2)** 774**Educational Codeforces Round 54 (Rated for Div. 2)** 721**Educational Codeforces Round 49 (Rated for Div. 2)** 697**Educational Codeforces Round 51 (Rated for Div. 2)** 694**Codeforces Round #501 (Div. 3)** 604**Codeforces Round #510 (Div. 2)** 589**Educational Codeforces Round 74 (Rated for Div. 2)** 573**Codeforces Round #529 (Div. 3)** 549**Educational Codeforces Round 73 (Rated for Div. 2)** 544**Codeforces Round #540 (Div. 3)** 497**Educational Codeforces Round 50 (Rated for Div. 2)** 497**Educational Codeforces Round 53 (Rated for Div. 2)** 482**Educational Codeforces Round 71 (Rated for Div. 2)** 472**Good Bye 2018** 441**Educational Codeforces Round 80 (Rated for Div. 2)** 437**Codeforces Round #661 (Div. 3)** 427**Codeforces Round #494 (Div. 3)** 419**Codeforces Round #653 (Div. 3)** 418**Educational Codeforces Round 94 (Rated for Div. 2)** 407**Educational Codeforces Round 69 (Rated for Div. 2)** 405**Codeforces Round #535 (Div. 3)** 378**Educational Codeforces Round 90 (Rated for Div. 2)** 355**Educational Codeforces Round 60 (Rated for Div. 2)** 344**Codeforces Round #547 (Div. 3)** 336**Educational Codeforces Round 88 (Rated for Div. 2)** 321**Codeforces Round #579 (Div. 3)** 320**Educational Codeforces Round 79 (Rated for Div. 2)** 317**Codeforces Round #644 (Div. 3)** 314**Codeforces Round #533 (Div. 2)** 306**Codeforces Round #575 (Div. 3)** 300**Educational Codeforces Round 56 (Rated for Div. 2)** 298**Codeforces Round #595 (Div. 3)** 296**Educational Codeforces Round 86 (Rated for Div. 2)** 294**Codeforces Round #566 (Div. 2)** 294**Educational Codeforces Round 65 (Rated for Div. 2)** 291**Codeforces Round #587 (Div. 3)** 290**Codeforces Round #578 (Div. 2)** 288**Educational Codeforces Round 76 (Rated for Div. 2)** 281**Codeforces Round #598 (Div. 3)** 281**Codeforces Round #520 (Div. 2)** 279**Codeforces Round #511 (Div. 2)** 276**Codeforces Round #544 (Div. 3)** 269**Codeforces Round #513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2)** 262**Codeforces Global Round 1** 261**Codeforces Round #650 (Div. 3)** 256**Educational Codeforces Round 78 (Rated for Div. 2)** 255**Codeforces Round #674 (Div. 3)** 248**Codeforces Round #590 (Div. 3)** 245**Educational Codeforces Round 48 (Rated for Div. 2)** 236**Codeforces Round #515 (Div. 3)** 231**Codeforces Round #563 (Div. 2)** 228**Codeforces Round #609 (Div. 2)** 216**Educational Codeforces Round 77 (Rated for Div. 2)** 216**Codeforces Round #596 (Div. 2, based on Technocup 2020 Elimination Round 2)** 204**Codeforces Global Round 2** 203**Codeforces Round #498 (Div. 3)** 199**Codeforces Round #499 (Div. 1)** 198**Codeforces Global Round 7** 197**Codeforces Round #634 (Div. 3)** 191**Mail.Ru Cup 2018 Round 2** 191**Codeforces Round #534 (Div. 2)** 188**Codeforces Round #556 (Div. 2)** 184**Codeforces Round #511 (Div. 1)** 181**Codeforces Round #496 (Div. 3)** 179**Codeforces Round #636 (Div. 3)** 173**Manthan, Codefest 18 (rated, Div. 1 + Div. 2)** 171**Codeforces Round #565 (Div. 3)** 170**Codeforces Round #586 (Div. 1 + Div. 2)** 168**Codeforces Round #572 (Div. 2)** 166