Problems from 2012 ICPC World Finals Practice

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Counting Stars 2806 990 35% 0.00 872 745 85% 2.7
Heliocentric 1056 658 62% 0.00 613 578 94% 1.7
In Or Out 1287 419 33% 0.00 413 362 88% 3.0
Limited Correspondence 252 60 24% 0.05 52 35 67% 5.6
Matrix Inverse 1635 590 36% 0.00 567 476 84% 2.7
Polish Notation 268 90 34% 0.00 93 78 84% 3.2
Preludes 1034 580 56% 0.00 566 532 94% 1.7
Prime Spiral 262 112 43% 0.00 84 79 94% 2.7
Reversing Roads 624 181 29% 0.00 160 132 82% 4.6
SierpiƄski Circumference 1556 603 39% 0.00 523 471 90% 2.4
Statistics 4068 1822 45% 0.00 1744 1602 92% 1.7