Problems by Howard Cheng

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Amazing Race 778 190 24% 0.29 171 130 76% 6.0
Antialiasing 74 12 16% 0.18 16 9 56% 8.0
Arithmetic Decoding 374 202 54% 0.00 171 162 95% 2.2
Bitmask 85 56 66% 0.00 56 51 91% 3.4
Conquest 1342 440 33% 0.08 311 275 88% 3.5
Decisions, Decisions 502 276 55% 0.00 243 213 88% 3.0
Distance 880 303 34% 0.02 298 226 76% 4.0
Election 2584 500 19% 0.00 600 355 59% 6.6
Election Paradox 331 233 70% 0.00 226 212 94% 1.9
Eligibility 5714 2894 51% 0.00 2742 2611 95% 1.5
Even Up Solitaire 7438 2988 40% 0.00 2577 2192 85% 2.6
Forced Choice 1342 997 74% 0.00 950 920 97% 1.4
Forest for the Trees 1388 330 24% 0.00 283 221 78% 4.9
Ghostbusters 3 131 55 42% 0.00 57 42 74% 6.2
Heart Rate 10228 6753 66% 0.00 5971 5796 97% 1.3
Hogwarts 453 112 25% 0.00 106 92 87% 5.0
Initials 353 88 25% 0.02 103 71 69% 6.9
Locked Treasure 1213 652 54% 0.00 591 543 92% 2.5
Molecules 644 221 34% 0.00 152 135 89% 3.8
Multiplication Game 1344 426 32% 0.02 319 252 79% 5.4
Open-Pit Mining 733 342 47% 0.00 266 213 80% 4.2
Particle Collision 544 169 31% 0.00 159 127 80% 5.4
Password Hacking 4171 1813 43% 0.00 1620 1478 91% 2.3
Plane Ticket Pricing 972 347 36% 0.00 315 263 83% 4.7
Plotting Polynomials 445 325 73% 0.00 311 290 93% 2.4
Polyline Simplification 873 196 22% 0.05 193 143 74% 6.8
Popular Vote 6001 2647 44% 0.00 2537 2285 90% 2.2
Protect the Pollen! 121 25 21% 0.02 21 18 86% 5.0
Quality-Adjusted Life-Year 22910 14331 63% 0.00 12615 12214 97% 1.3
Repeated Substrings 1524 456 30% 0.05 455 298 65% 6.4
Restaurant Ratings 468 239 51% 0.00 224 193 86% 3.8
Scaling Recipes 2192 1244 57% 0.01 1094 1036 95% 1.8
Space Junk 1248 328 26% 0.00 307 250 81% 4.5
Studying For Exams 809 285 35% 0.00 214 160 75% 5.1
Train Boarding 620 188 30% 0.00 203 168 83% 3.5
Vaccine Efficacy 1090 499 46% 0.00 480 428 89% 2.7