Problems

2019 ICPC World Finals - Porto

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Azulejos	2890	580	20%	0.23	565	384	68%	4.4
B	Beautiful Bridges	645	117	18%	0.23	106	87	82%	5.0
C	Checks Post Facto	113	33	29%	0.00	26	16	62%	6.8
D	Circular DNA	882	306	35%	0.03	268	229	85%	3.1
E	Dead-End Detector	1203	343	29%	0.10	275	239	87%	3.4
F	Directing Rainfall	519	59	11%	1.12	45	28	62%	6.0
G	First of Her Name	1306	296	23%	0.16	192	163	85%	4.5
H	Hobson's Trains	747	213	29%	0.09	161	140	87%	3.4
I	Karel the Robot	383	100	26%	0.18	46	39	85%	4.4
J	Miniature Golf	620	109	18%	0.79	116	79	68%	7.2
K	Traffic Blights	168	37	22%	0.03	36	30	83%	6.2

2018 ACM-ICPC World Finals - Beijing

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Catch the Plane	824	277	34%	0.50	228	195	86%	3.6
B	Comma Sprinkler	1125	333	30%	0.06	337	293	87%	4.0
C	Conquer The World	263	62	24%	0.21	53	33	62%	6.8
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	1079	236	22%	0.10	214	189	88%	4.2
G	Panda Preserve	1165	128	11%	0.05	80	61	76%	5.5
H	Single Cut of Failure	1011	140	14%	0.40	130	106	82%	6.7
I	Triangles	603	130	22%	1.11	111	105	95%	6.7
J	Uncrossed Knight's Tour	183	19	10%	0.00	25	16	64%	5.7
K	Wireless is the New Fiber	788	291	37%	0.01	284	258	91%	3.1

2017 ACM-ICPC World Finals - Rapid City

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Airport Construction	2714	363	13%	0.02	288	152	53%	7.5
B	Get a Clue!	242	92	38%	0.00	83	72	87%	4.4
C	Mission Improbable	1057	378	36%	0.00	339	282	83%	4.3
D	Money for Nothing	1934	266	14%	0.14	252	188	75%	6.3
E	Need for Speed	3359	991	30%	0.00	776	708	91%	3.3
F	Posterize	1025	434	42%	0.00	387	350	90%	3.0
G	Replicate Replicate Rfplicbte	378	136	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	1728	927	54%	0.00	824	768	93%	2.2
J	Son of Pipe Stream	265	46	17%	0.03	51	40	78%	6.1
K	Tarot Sham Boast	394	104	26%	0.01	104	86	83%	6.4
L	Visual Python++	964	152	16%	0.12	153	117	76%	6.3

2016 ACM-ICPC World Finals - Phuket

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Balanced Diet	522	167	32%	0.01	143	115	80%	5.6
B	Branch Assignment	799	214	27%	0.08	202	170	84%	4.5
C	Ceiling Function	1700	824	48%	0.00	713	648	91%	2.0
D	Clock Breaking	199	114	57%	0.00	109	104	95%	3.6
E	Forever Young	2029	314	15%	0.00	300	222	74%	5.8
F	Longest Rivers	309	76	25%	0.36	86	64	74%	7.2
G	Oil	1388	285	21%	0.48	237	187	79%	5.6
H	Polygonal Puzzle	65	25	38%	1.10	16	14	88%	5.7
I	Road Times	781	170	22%	0.04	79	69	87%	5.2
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	1753	377	22%	0.16	385	298	77%	4.8
M	What Really Happened on Mars?	178	53	30%	0.00	51	43	84%	6.5

2015 ACM-ICPC World Finals - Marrakech

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Amalgamated Artichokes	1842	926	50%	0.01	794	715	90%	2.7
B	Asteroids	647	115	18%	0.00	73	60	82%	6.5
C	Catering	794	294	37%	0.00	214	192	90%	3.9
D	Cutting Cheese	629	331	53%	0.00	284	256	90%	3.0
E	Evolution in Parallel	489	149	30%	0.02	148	120	81%	6.3
F	Keyboarding	851	290	34%	0.31	248	205	83%	5.0
G	Pipe Stream	298	57	19%	0.00	61	40	66%	7.4
H	Qanat	222	159	72%	0.00	137	129	94%	2.2
I	Ship Traffic	668	224	34%	0.03	203	186	92%	4.1
J	Tile Cutting	440	295	67%	0.16	205	194	95%	3.0
K	Tours	286	87	30%	0.00	77	62	81%	6.1
L	Weather Report	273	191	70%	0.01	177	165	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	1524	209	14%	0.00	204	153	75%	4.9
D	Game Strategy	945	275	29%	0.09	304	221	73%	5.0
E	Maze Reduction	477	138	29%	0.00	114	95	83%	5.8
F	Messenger	329	57	17%	0.10	54	44	81%	5.8
G	Metal Processing Plant	619	111	18%	0.03	110	77	70%	7.0
H	Pachinko	212	50	24%	0.14	43	33	77%	6.7
I	Sensor Network	1431	181	13%	0.00	192	121	63%	7.0
J	Skiing	102	20	20%	0.06	21	16	76%	5.6
K	Surveillance	1355	281	21%	0.08	268	191	71%	5.6
L	Wire Crossing	318	35	11%	0.02	38	28	74%	7.1

2013 ACM-ICPC World Finals - Saint Petersburg

		Submissions				Users
#	Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A	Self-Assembly	898	311	35%	0.00	353	247	70%	3.9
B	Hey, Better Bettor	275	110	40%	0.00	93	73	78%	6.0
C	Surely You Congest	940	314	33%	0.11	233	208	89%	3.8
D	Factors	1621	424	26%	0.01	361	288	80%	5.3
E	Harvard	345	53	15%	0.26	73	45	62%	9.2
F	Low Power	1890	436	23%	0.11	498	359	72%	5.1
G	Map Tiles	83	23	28%	0.35	28	19	68%	8.6
H	Матрёшка	716	245	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%	6.4
B	Curvy Little Bottles	295	153	52%	0.00	138	130	94%	3.0
C	Bus Tour	353	124	35%	0.06	112	95	85%	6.4
D	Fibonacci Words	433	157	36%	0.00	143	123	86%	5.0
E	Infiltration	472	91	19%	0.01	89	64	72%	7.4
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	191	75	39%	0.16	57	52	91%	6.3
J	Shortest Flight Path	52	22	42%	0.15	19	15	79%	7.7
K	Stacking Plates	280	84	30%	0.00	90	72	80%	6.6
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	4152	1839	44%	0.00	1569	1382	88%	2.6
Hello World!	6399	3864	60%	0.00	2275	2153	95%	1.1