Problems from 2012 ICPC World Finals Practice

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Counting Stars 2485 866 35% 0.00 798 677 85% 2.8
Heliocentric 1006 620 62% 0.00 576 542 94% 1.7
In Or Out 1214 396 33% 0.00 388 341 88% 2.9
Limited Correspondence 243 56 23% 0.05 49 33 67% 6.0
Matrix Inverse 1527 545 36% 0.00 520 436 84% 2.8
Polish Notation 203 70 34% 0.00 77 65 84% 2.9
Preludes 943 533 57% 0.00 518 486 94% 1.7
Prime Spiral 257 107 42% 0.00 81 76 94% 2.7
Reversing Roads 506 156 31% 0.00 134 111 83% 4.9
SierpiƄski Circumference 1344 524 39% 0.00 456 407 89% 2.3
Statistics 3652 1634 45% 0.00 1584 1452 92% 1.7