Problems from North America Championship 2020

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
All Kill 69 56 81% 0.00 41 35 85% 3.3
Another Coin Weighing Puzzle 527 149 28% 0.00 131 105 80% 6.1
Bomas 429 126 29% 0.18 77 60 78% 6.7
Editing Explosion 113 87 77% 0.06 61 57 93% 4.3
Grid Guardian 70 27 39% 0.63 18 10 56% 7.8
Hopscotch 50 1154 503 44% 0.00 347 316 91% 2.8
ICPC Camp 1042 305 29% 0.15 203 175 86% 4.6
Letter Wheels 966 298 31% 0.11 214 181 85% 5.0
Lunchtime Name Recall 432 94 22% 1.10 71 50 70% 6.9
Mini Battleship 672 383 57% 0.02 253 227 90% 3.6
Rooted Subtrees 947 261 28% 0.14 183 168 92% 3.6
Tomb Raider 342 88 26% 0.03 78 66 85% 4.9