PS3 - NP-hard 2+Flows 1

Problems

Name Solved / Tries Average tries Average tries to solve
A Sumsets 55/446 (12%) 7.96 7.96
B Indoorienteering 49/380 (13%) 7.17 6.82
C Water 54/160 (34%) 2.96 2.96
D Neutral Ground 53/95 (56%) 1.76 1.75