Problems

2019 ICPC World Finals - Porto

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Azulejos	2944	588	20%	0.23	578	391	68%	4.6
B	Beautiful Bridges	648	118	18%	0.23	108	88	81%	5.2
C	Checks Post Facto	125	37	30%	0.00	30	19	63%	5.6
D	Circular DNA	889	311	35%	0.03	273	234	86%	3.2
E	Dead-End Detector	1227	351	29%	0.10	282	245	87%	3.4
F	Directing Rainfall	519	59	11%	1.12	45	28	62%	6.1
G	First of Her Name	1333	306	23%	0.16	198	168	85%	4.8
H	Hobson's Trains	752	214	28%	0.09	164	141	86%	3.6
I	Karel the Robot	395	108	27%	0.18	46	40	87%	4.4
J	Miniature Golf	632	111	18%	0.79	119	81	68%	7.2
K	Traffic Blights	168	37	22%	0.03	36	30	83%	6.3

2018 ACM-ICPC World Finals - Beijing

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Catch the Plane	842	278	33%	0.50	230	196	85%	3.6
B	Comma Sprinkler	1132	335	30%	0.06	340	295	87%	4.0
C	Conquer The World	269	63	23%	0.21	54	34	63%	6.5
D	Gem Island	253	69	27%	0.04	59	54	92%	5.0
E	Getting a Jump on Crime	451	76	17%	0.01	64	51	80%	5.8
F	Go with the Flow	1094	238	22%	0.10	217	190	88%	4.3
G	Panda Preserve	1167	131	11%	0.05	82	63	77%	5.0
H	Single Cut of Failure	1013	141	14%	0.40	132	107	81%	6.5
I	Triangles	630	132	21%	1.11	113	107	95%	6.5
J	Uncrossed Knight's Tour	183	19	10%	0.00	25	16	64%	5.7
K	Wireless is the New Fiber	795	294	37%	0.01	287	261	91%	3.1

2017 ACM-ICPC World Finals - Rapid City

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Airport Construction	2739	366	13%	0.02	294	155	53%	7.6
B	Get a Clue!	242	92	38%	0.00	83	72	87%	4.6
C	Mission Improbable	1097	386	35%	0.00	347	289	83%	4.1
D	Money for Nothing	1976	274	14%	0.14	257	192	75%	6.3
E	Need for Speed	3407	1003	29%	0.00	783	715	91%	3.3
F	Posterize	1030	435	42%	0.00	388	351	90%	3.2
G	Replicate Replicate Rfplicbte	381	138	36%	0.03	94	89	95%	4.6
H	Scenery	318	59	19%	0.02	65	34	52%	6.7
I	Secret Chamber at Mount Rushmore	1740	936	54%	0.00	833	776	93%	2.3
J	Son of Pipe Stream	265	46	17%	0.03	51	40	78%	6.2
K	Tarot Sham Boast	394	104	26%	0.01	104	86	83%	6.4
L	Visual Python++	966	153	16%	0.12	154	118	77%	6.3

2016 ACM-ICPC World Finals - Phuket

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Balanced Diet	527	168	32%	0.01	144	116	81%	5.8
B	Branch Assignment	850	224	26%	0.08	210	177	84%	4.5
C	Ceiling Function	1708	832	49%	0.00	719	654	91%	2.1
D	Clock Breaking	199	114	57%	0.00	109	104	95%	3.6
E	Forever Young	2037	316	16%	0.00	302	224	74%	5.7
F	Longest Rivers	314	77	25%	0.36	88	65	74%	7.5
G	Oil	1394	287	21%	0.48	239	189	79%	5.5
H	Polygonal Puzzle	65	25	38%	1.10	16	14	88%	5.8
I	Road Times	790	175	22%	0.04	82	72	88%	5.1
J	Spin Doctor	244	63	26%	0.20	47	39	83%	7.1
K	String Theory	705	216	31%	0.00	204	177	87%	5.2
L	Swap Space	1761	379	22%	0.16	387	300	78%	4.8
M	What Really Happened on Mars?	180	54	30%	0.00	52	44	85%	6.4

2015 ACM-ICPC World Finals - Marrakech

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Amalgamated Artichokes	1858	937	50%	0.01	804	725	90%	2.7
B	Asteroids	651	116	18%	0.00	74	61	82%	6.2
C	Catering	797	295	37%	0.00	216	193	89%	3.9
D	Cutting Cheese	643	338	53%	0.00	291	263	90%	2.9
E	Evolution in Parallel	490	149	30%	0.02	149	120	81%	6.5
F	Keyboarding	857	293	34%	0.31	250	207	83%	4.9
G	Pipe Stream	304	59	19%	0.00	63	42	67%	6.8
H	Qanat	226	160	71%	0.00	138	130	94%	2.2
I	Ship Traffic	676	229	34%	0.03	205	188	92%	4.1
J	Tile Cutting	446	301	67%	0.16	207	196	95%	3.0
K	Tours	286	87	30%	0.00	77	62	81%	5.8
L	Weather Report	276	193	70%	0.01	178	166	93%	3.4
M	Window Manager	388	94	24%	0.00	91	79	87%	7.6

2014 ACM-ICPC World Finals - Ekaterinburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Baggage	310	102	33%	0.00	116	84	72%	5.9
B	Buffed Buffet	692	110	16%	0.03	90	72	80%	5.7
C	Crane Balancing	1541	215	14%	0.00	206	155	75%	4.9
D	Game Strategy	949	275	29%	0.09	305	221	72%	5.0
E	Maze Reduction	477	138	29%	0.00	114	95	83%	5.9
F	Messenger	340	58	17%	0.10	55	45	82%	5.4
G	Metal Processing Plant	628	113	18%	0.03	112	78	70%	7.0
H	Pachinko	219	52	24%	0.14	44	34	77%	6.7
I	Sensor Network	1432	182	13%	0.00	193	122	63%	7.0
J	Skiing	102	20	20%	0.06	21	16	76%	5.6
K	Surveillance	1370	285	21%	0.08	271	194	72%	5.5
L	Wire Crossing	319	36	11%	0.02	39	29	74%	6.6

2013 ACM-ICPC World Finals - Saint Petersburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Self-Assembly	909	312	34%	0.00	355	248	70%	3.9
B	Hey, Better Bettor	275	110	40%	0.00	93	73	78%	6.2
C	Surely You Congest	957	319	33%	0.11	237	212	89%	3.8
D	Factors	1632	428	26%	0.01	367	291	79%	5.4
E	Harvard	345	53	15%	0.26	73	45	62%	9.2
F	Low Power	1896	438	23%	0.11	500	361	72%	5.1
G	Map Tiles	91	25	27%	0.35	29	20	69%	8.4
H	Матрёшка	718	247	34%	0.07	222	180	81%	4.4
I	Pirate Chest	439	140	32%	0.41	124	98	79%	7.5
J	Pollution Solution	924	215	23%	0.00	197	152	77%	6.0
K	Up a Tree	129	54	42%	0.02	51	42	82%	8.6

2012 ACM-ICPC World Finals - Warsaw

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Asteroid Rangers	147	52	35%	0.09	39	32	82%	7.3
B	Curvy Little Bottles	317	160	50%	0.00	144	136	94%	3.0
C	Bus Tour	360	126	35%	0.06	114	97	85%	6.2
D	Fibonacci Words	532	177	33%	0.00	152	132	87%	5.0
E	Infiltration	474	93	20%	0.01	91	66	73%	6.7
F	Keys	148	34	23%	0.00	36	28	78%	8.1
G	Minimum Cost Flow	121	48	40%	0.05	52	44	85%	6.4
H	Room Service	62	28	45%	0.01	16	15	94%	6.2
I	A Safe Bet	198	76	38%	0.16	58	53	91%	6.3
J	Shortest Flight Path	52	22	42%	0.15	19	15	79%	7.7
K	Stacking Plates	283	85	30%	0.00	91	73	80%	6.9
L	Takeover Wars	182	71	39%	0.03	73	63	86%	7.3

Tutorial Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Different Problem	4221	1872	44%	0.00	1591	1402	88%	2.3
Hello World!	6496	3935	61%	0.00	2322	2199	95%	1.2