Problems

2019 ICPC World Finals - Porto

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Azulejos	2811	570	20%	0.23	555	376	68%	4.4
B	Beautiful Bridges	550	114	21%	0.23	101	84	83%	4.6
C	Checks Post Facto	112	33	29%	0.00	25	16	64%	6.3
D	Circular DNA	876	303	35%	0.03	264	226	86%	3.1
E	Dead-End Detector	1150	332	29%	0.10	265	229	86%	3.3
F	Directing Rainfall	495	54	11%	1.12	43	26	60%	6.3
G	First of Her Name	1291	291	23%	0.16	190	162	85%	4.4
H	Hobson's Trains	740	208	28%	0.09	157	136	87%	3.4
I	Karel the Robot	363	89	25%	0.18	42	35	83%	4.7
J	Miniature Golf	597	106	18%	0.79	112	76	68%	7.1
K	Traffic Blights	168	37	22%	0.03	36	30	83%	5.8

2018 ACM-ICPC World Finals - Beijing

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Catch the Plane	822	275	33%	0.50	226	193	85%	3.5
B	Comma Sprinkler	1121	331	30%	0.06	335	291	87%	4.0
C	Conquer The World	262	61	23%	0.21	53	32	60%	7.3
D	Gem Island	253	69	27%	0.04	59	54	92%	4.6
E	Getting a Jump on Crime	428	75	18%	0.01	63	50	79%	5.6
F	Go with the Flow	1078	235	22%	0.10	213	188	88%	4.1
G	Panda Preserve	1139	124	11%	0.05	79	60	76%	5.3
H	Single Cut of Failure	994	138	14%	0.40	128	104	81%	6.5
I	Triangles	593	128	22%	1.11	110	103	94%	6.7
J	Uncrossed Knight's Tour	181	18	10%	0.00	24	15	62%	6.2
K	Wireless is the New Fiber	777	285	37%	0.01	280	254	91%	3.1

2017 ACM-ICPC World Finals - Rapid City

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Airport Construction	2624	350	13%	0.02	281	148	53%	7.4
B	Get a Clue!	236	88	37%	0.00	81	70	86%	4.4
C	Mission Improbable	987	343	35%	0.00	334	277	83%	4.3
D	Money for Nothing	1875	256	14%	0.14	247	183	74%	6.4
E	Need for Speed	3343	982	29%	0.00	770	701	91%	3.2
F	Posterize	1014	429	42%	0.00	383	346	90%	3.0
G	Replicate Replicate Rfplicbte	357	124	35%	0.03	92	87	95%	4.6
H	Scenery	313	57	18%	0.02	63	32	51%	7.5
I	Secret Chamber at Mount Rushmore	1715	919	54%	0.00	818	761	93%	2.3
J	Son of Pipe Stream	265	46	17%	0.03	51	40	78%	5.8
K	Tarot Sham Boast	383	101	26%	0.01	101	83	82%	6.2
L	Visual Python++	887	147	17%	0.12	147	112	76%	6.1

2016 ACM-ICPC World Finals - Phuket

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Balanced Diet	513	165	32%	0.01	141	113	80%	5.7
B	Branch Assignment	793	209	26%	0.08	198	166	84%	4.5
C	Ceiling Function	1679	816	49%	0.00	704	641	91%	1.9
D	Clock Breaking	196	112	57%	0.00	107	102	95%	3.4
E	Forever Young	2021	310	15%	0.00	297	219	74%	5.8
F	Longest Rivers	309	76	25%	0.36	86	64	74%	7.3
G	Oil	1377	281	20%	0.48	234	183	78%	5.6
H	Polygonal Puzzle	42	15	36%	1.10	15	13	87%	5.7
I	Road Times	745	164	22%	0.04	74	66	89%	5.6
J	Spin Doctor	244	63	26%	0.20	47	39	83%	6.6
K	String Theory	701	214	31%	0.00	202	175	87%	5.2
L	Swap Space	1744	371	21%	0.16	381	294	77%	4.9
M	What Really Happened on Mars?	177	52	29%	0.00	50	42	84%	6.5

2015 ACM-ICPC World Finals - Marrakech

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Amalgamated Artichokes	1832	917	50%	0.01	785	706	90%	2.7
B	Asteroids	638	111	17%	0.00	68	56	82%	6.8
C	Catering	780	288	37%	0.00	208	188	90%	3.8
D	Cutting Cheese	612	321	52%	0.00	274	249	91%	2.9
E	Evolution in Parallel	466	146	31%	0.02	144	117	81%	5.9
F	Keyboarding	837	284	34%	0.31	241	200	83%	4.9
G	Pipe Stream	295	55	19%	0.00	60	39	65%	7.5
H	Qanat	212	152	72%	0.00	130	122	94%	2.1
I	Ship Traffic	654	215	33%	0.03	198	181	91%	4.1
J	Tile Cutting	431	288	67%	0.16	201	190	95%	2.8
K	Tours	284	85	30%	0.00	75	60	80%	5.7
L	Weather Report	266	184	69%	0.01	171	159	93%	3.2
M	Window Manager	379	91	24%	0.00	87	76	87%	6.9

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%	6.0
B	Buffed Buffet	692	110	16%	0.03	90	72	80%	5.6
C	Crane Balancing	1492	200	13%	0.00	200	149	74%	4.6
D	Game Strategy	923	272	29%	0.09	301	218	72%	4.9
E	Maze Reduction	475	136	29%	0.00	113	94	83%	5.2
F	Messenger	329	57	17%	0.10	54	44	81%	5.7
G	Metal Processing Plant	608	110	18%	0.03	109	76	70%	7.2
H	Pachinko	212	50	24%	0.14	43	33	77%	7.2
I	Sensor Network	1389	179	13%	0.00	188	119	63%	6.8
J	Skiing	102	20	20%	0.06	21	16	76%	5.6
K	Surveillance	1341	279	21%	0.08	266	189	71%	5.4
L	Wire Crossing	318	35	11%	0.02	38	28	74%	7.0

2013 ACM-ICPC World Finals - Saint Petersburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Self-Assembly	897	310	35%	0.00	352	246	70%	3.8
B	Hey, Better Bettor	274	109	40%	0.00	92	72	78%	6.0
C	Surely You Congest	938	312	33%	0.11	232	206	89%	3.7
D	Factors	1620	423	26%	0.01	360	287	80%	5.2
E	Harvard	338	52	15%	0.26	72	44	61%	9.2
F	Low Power	1883	434	23%	0.11	496	357	72%	5.0
G	Map Tiles	83	23	28%	0.35	28	19	68%	8.6
H	Матрёшка	712	241	34%	0.07	221	179	81%	4.4
I	Pirate Chest	437	139	32%	0.41	123	97	79%	7.4
J	Pollution Solution	921	213	23%	0.00	196	151	77%	5.9
K	Up a Tree	129	54	42%	0.02	51	42	82%	8.2

2012 ACM-ICPC World Finals - Warsaw

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Asteroid Rangers	143	52	36%	0.09	38	32	84%	6.9
B	Curvy Little Bottles	293	151	52%	0.00	137	129	94%	2.9
C	Bus Tour	350	123	35%	0.06	111	94	85%	6.0
D	Fibonacci Words	432	156	36%	0.00	142	122	86%	4.9
E	Infiltration	470	89	19%	0.01	87	62	71%	7.4
F	Keys	148	34	23%	0.00	36	28	78%	7.7
G	Minimum Cost Flow	119	47	39%	0.05	51	43	84%	6.2
H	Room Service	61	27	44%	0.01	15	14	93%	6.3
I	A Safe Bet	182	70	38%	0.16	55	50	91%	6.3
J	Shortest Flight Path	50	22	44%	0.15	18	15	83%	6.9
K	Stacking Plates	280	84	30%	0.00	90	72	80%	6.5
L	Takeover Wars	178	67	38%	0.03	72	62	86%	6.6

Tutorial Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A Different Problem	4083	1818	45%	0.00	1551	1368	88%	2.1
Hello World!	6338	3821	60%	0.00	2248	2127	95%	1.1