Problems from North America Championship 2020

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
All Kill 126 103 82% 0.00 58 51 88% 3.6
Another Coin Weighing Puzzle 792 221 28% 0.00 149 121 81% 6.2
Bomas 486 145 30% 0.18 86 70 81% 6.6
Editing Explosion 158 122 77% 0.04 78 74 95% 4.2
Grid Guardian 89 38 43% 0.63 29 20 69% 7.9
Hopscotch 50 1847 808 44% 0.00 415 378 91% 3.0
ICPC Camp 1629 447 27% 0.15 227 196 86% 5.0
Letter Wheels 1549 540 35% 0.04 239 199 83% 5.8
Lunchtime Name Recall 475 108 23% 0.81 78 56 72% 7.7
Mini Battleship 1150 606 53% 0.02 297 262 88% 4.0
Rooted Subtrees 1388 414 30% 0.11 212 193 91% 3.9
Tomb Raider 391 105 27% 0.03 94 80 85% 5.7