Problems

2019 ICPC World Finals - Porto

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Azulejos	1847	360	19%	0.23	461	298	65%	5.3
B	Beautiful Bridges	464	100	22%	0.23	86	72	84%	4.0
C	Checks Post Facto	82	29	35%	0.00	18	13	72%	4.9
D	Circular DNA	746	273	37%	0.03	232	202	87%	2.7
E	Dead-End Detector	620	203	33%	0.10	207	179	86%	3.4
F	Directing Rainfall	441	45	10%	1.12	31	18	58%	6.0
G	First of Her Name	1114	248	22%	0.16	162	141	87%	4.2
H	Hobson's Trains	406	141	35%	0.09	118	104	88%	3.9
I	Karel the Robot	319	79	25%	0.18	36	29	81%	5.7
J	Miniature Golf	543	96	18%	0.79	95	68	72%	6.5
K	Traffic Blights	156	32	21%	0.03	32	26	81%	6.7

2018 ACM-ICPC World Finals - Beijing

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Catch the Plane	757	253	33%	0.60	215	182	85%	3.4
B	Comma Sprinkler	1108	321	29%	0.06	327	283	87%	4.0
C	Conquer The World	230	55	24%	0.23	47	27	57%	7.7
D	Gem Island	206	59	29%	0.04	53	47	89%	4.6
E	Getting a Jump on Crime	399	69	17%	0.01	57	46	81%	5.3
F	Go with the Flow	1001	226	23%	0.10	205	180	88%	3.8
G	Panda Preserve	1053	109	10%	0.05	70	51	73%	5.3
H	Single Cut of Failure	844	131	16%	0.40	117	98	84%	4.4
I	Triangles	542	122	23%	1.11	101	97	96%	5.0
J	Uncrossed Knight's Tour	146	14	10%	0.00	18	11	61%	4.3
K	Wireless is the New Fiber	730	274	38%	0.01	270	245	91%	3.0

2017 ACM-ICPC World Finals - Rapid City

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Airport Construction	2515	338	13%	0.02	267	141	53%	7.4
B	Get a Clue!	230	83	36%	0.00	77	66	86%	4.8
C	Mission Improbable	965	335	35%	0.00	325	269	83%	4.3
D	Money for Nothing	1736	241	14%	0.14	232	174	75%	6.1
E	Need for Speed	3181	947	30%	0.00	743	678	91%	3.1
F	Posterize	991	413	42%	0.00	370	334	90%	2.9
G	Replicate Replicate Rfplicbte	339	121	36%	0.03	89	84	94%	3.3
H	Scenery	295	53	18%	0.02	59	28	47%	8.0
I	Secret Chamber at Mount Rushmore	1648	883	54%	0.00	789	735	93%	2.2
J	Son of Pipe Stream	242	41	17%	0.03	47	36	77%	5.2
K	Tarot Sham Boast	367	94	26%	0.01	96	78	81%	6.0
L	Visual Python++	867	142	16%	0.12	142	108	76%	6.3

2016 ACM-ICPC World Finals - Phuket

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Balanced Diet	511	164	32%	0.01	139	112	81%	5.2
B	Branch Assignment	787	205	26%	0.08	195	163	84%	4.4
C	Ceiling Function	1600	790	49%	0.00	681	626	92%	1.8
D	Clock Breaking	194	111	57%	0.00	106	101	95%	2.9
E	Forever Young	1953	304	16%	0.00	292	214	73%	5.7
F	Longest Rivers	308	75	24%	0.36	85	63	74%	7.2
G	Oil	1253	269	21%	0.48	229	178	78%	5.7
H	Polygonal Puzzle	40	14	35%	1.10	13	12	92%	4.3
I	Road Times	717	155	22%	0.04	70	62	89%	6.1
J	Spin Doctor	243	62	26%	0.20	46	38	83%	6.7
K	String Theory	695	213	31%	0.00	201	174	87%	5.2
L	Swap Space	1729	365	21%	0.16	373	289	77%	4.6
M	What Really Happened on Mars?	161	49	30%	0.00	47	39	83%	6.7

2015 ACM-ICPC World Finals - Marrakech

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Amalgamated Artichokes	1790	892	50%	0.01	764	685	90%	2.7
B	Asteroids	635	110	17%	0.00	66	55	83%	5.8
C	Catering	763	278	36%	0.00	202	182	90%	3.7
D	Cutting Cheese	604	315	52%	0.00	271	246	91%	2.8
E	Evolution in Parallel	456	142	31%	0.02	141	114	81%	5.8
F	Keyboarding	820	280	34%	0.31	236	197	83%	4.7
G	Pipe Stream	290	53	18%	0.00	59	38	64%	7.5
H	Qanat	197	145	74%	0.00	124	117	94%	2.1
I	Ship Traffic	652	214	33%	0.03	198	180	91%	4.0
J	Tile Cutting	420	280	67%	0.16	195	184	94%	2.8
K	Tours	278	83	30%	0.00	72	58	81%	4.9
L	Weather Report	256	176	69%	0.01	166	154	93%	2.9
M	Window Manager	374	90	24%	0.00	84	75	89%	6.0

2014 ACM-ICPC World Finals - Ekaterinburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Baggage	305	99	32%	0.00	112	81	72%	4.8
B	Buffed Buffet	686	108	16%	0.03	88	70	80%	5.9
C	Crane Balancing	1480	197	13%	0.00	196	146	74%	4.5
D	Game Strategy	922	271	29%	0.09	300	217	72%	4.9
E	Maze Reduction	465	133	29%	0.00	109	91	83%	4.9
F	Messenger	328	56	17%	0.10	53	43	81%	5.6
G	Metal Processing Plant	605	108	18%	0.03	108	75	69%	7.3
H	Pachinko	210	48	23%	0.14	42	32	76%	6.9
I	Sensor Network	1362	174	13%	0.00	182	115	63%	6.7
J	Skiing	100	18	18%	0.06	19	14	74%	5.8
K	Surveillance	1336	276	21%	0.08	262	186	71%	5.3
L	Wire Crossing	307	33	11%	0.02	36	26	72%	7.1

2013 ACM-ICPC World Finals - Saint Petersburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Self-Assembly	896	309	34%	0.00	351	245	70%	3.8
B	Hey, Better Bettor	268	106	40%	0.00	90	70	78%	5.8
C	Surely You Congest	923	308	33%	0.11	228	203	89%	3.3
D	Factors	1592	413	26%	0.01	352	281	80%	4.7
E	Harvard	327	52	16%	0.26	69	44	64%	8.9
F	Low Power	1875	430	23%	0.11	493	354	72%	4.8
G	Map Tiles	81	22	27%	0.35	26	18	69%	8.3
H	Матрёшка	700	236	34%	0.07	214	174	81%	4.4
I	Pirate Chest	432	138	32%	0.41	122	96	79%	7.3
J	Pollution Solution	901	206	23%	0.00	192	145	76%	5.7
K	Up a Tree	128	53	41%	0.02	50	41	82%	7.4

2012 ACM-ICPC World Finals - Warsaw

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Asteroid Rangers	119	38	32%	0.09	37	31	84%	7.0
B	Curvy Little Bottles	262	144	55%	0.00	130	122	94%	3.0
C	Bus Tour	337	119	35%	0.06	107	90	84%	6.2
D	Fibonacci Words	415	149	36%	0.00	137	116	85%	4.9
E	Infiltration	466	88	19%	0.01	85	61	72%	7.1
F	Keys	145	32	22%	0.00	35	27	77%	7.8
G	Minimum Cost Flow	118	46	39%	0.05	50	42	84%	6.5
H	Room Service	60	26	43%	0.01	14	13	93%	6.5
I	A Safe Bet	173	67	39%	0.16	52	47	90%	6.8
J	Shortest Flight Path	39	17	44%	0.15	14	11	79%	7.4
K	Stacking Plates	238	78	33%	0.00	84	66	79%	7.1
L	Takeover Wars	177	66	37%	0.03	71	61	86%	5.9

Tutorial Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Different Problem	3800	1716	45%	0.00	1480	1300	88%	2.1
Hello World!	5989	3602	60%	0.00	2119	2000	94%	1.1