Problems from Principles of Algorithmic Problem Solving

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Arithmetic Functions	144	86	60%	0.00	87	82	94%	2.1
Cinema Crowds	246	131	53%	0.00	139	125	90%	2.6
Cinema Crowds 2	280	181	65%	0.00	177	167	94%	1.8
Cinema Seating	82	54	66%	0.03	49	46	94%	3.0
Counting Days	72	41	57%	0.00	40	39	98%	2.6
Cut in Line	127	105	83%	0.00	94	90	96%	2.2
Digit Swap	1640	1209	74%	0.00	1184	1140	96%	1.3
Eulerian Graphs	74	30	41%	0.03	31	24	77%	4.6
Eulerian Graphs 2	48	23	48%	0.06	21	19	90%	4.5
Grading	689	463	67%	0.00	461	444	96%	1.4
Hailstone Sequences	377	222	59%	0.00	222	208	94%	1.8
Hermits	461	104	23%	0.01	150	91	61%	5.8
Logic Functions	77	57	74%	0.00	59	57	97%	2.4
Massive Card Game	135	54	40%	0.04	41	33	80%	5.4
N-sum	1975	1403	71%	0.00	1338	1294	97%	1.3
Odd A's, Even B's	88	51	58%	0.00	45	43	96%	3.2
Odd Echo	1996	1261	63%	0.00	1235	1178	95%	1.3
Popularity Contest	144	117	81%	0.01	99	96	97%	2.1
Triangle Area	1931	1199	62%	0.00	1160	1114	96%	1.3
Triangle Drama	66	54	82%	0.00	48	45	94%	2.6
Trip Planning	68	37	54%	0.11	24	21	88%	5.1
Two-sum	2528	1521	60%	0.00	1513	1443	95%	1.4
Varied Amusements	116	88	76%	0.00	36	36	100%	2.4 - 3.1
Vector Functions	160	67	42%	0.03	63	62	98%	2.2