Problems from 2012 ICPC World Finals Practice

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Counting Stars 3813 1260 33% 0.00 1128 957 85% 3.0
Heliocentric 1443 841 58% 0.00 797 745 93% 1.8
In Or Out 1528 510 33% 0.00 508 446 88% 2.9
Limited Correspondence 590 151 26% 0.03 67 44 66% 6.1
Matrix Inverse 1952 671 34% 0.00 670 547 82% 3.5
Polish Notation 370 116 31% 0.00 121 101 83% 3.5
Preludes 1306 707 54% 0.00 690 646 94% 1.8
Prime Spiral 333 148 44% 0.00 107 95 89% 4.2
Reversing Roads 782 201 26% 0.00 196 148 76% 5.6
SierpiƄski Circumference 1893 715 38% 0.00 624 562 90% 2.5
Statistics 4961 2195 44% 0.00 2085 1916 92% 1.8