Unique strings

Count the exact number of unique tokens as fast as possible.

Input

One token per line on STDIN:

JWXcKKaWzvFL5
Rof
3ztCpA
5wHcGN
*UiEMthaTS*g

Output

Print the exact count of unique tokens to STDOUT.

Constraints

Character set: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@#%*
Maximum token length: 16
Approximately 1,000,000 unique tokens

Restrictions:20s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listJan 15, 2026 00:29

Josu San MartinScore: 4,307Success

Source Code

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Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 15, 2026 00:48	4,293	168,891,665	138,668,000	3,014,000	2,396,160
2	Jan 15, 2026 00:55	4,293	173,504,034	139,680,000	1,995,000	2,289,664
3	Jan 15, 2026 01:05	4,294	164,747,236	139,708,000	1,995,000	2,289,664
4	Jan 15, 2026 00:34	4,295	164,989,352	138,745,000	2,994,000	2,293,760
5	Jan 15, 2026 00:40	4,297	170,064,313	137,806,000	3,994,000	2,289,664
6	Jan 15, 2026 01:00	4,297	163,436,164	139,798,000	1,997,000	2,408,448
7	Jan 15, 2026 00:32	4,298	165,198,503	140,838,000	998,000	2,408,448
8	Jan 15, 2026 01:08	4,298	167,598,016	140,846,000	998,000	2,289,664
9	Jan 15, 2026 00:29	4,299	169,069,630	139,875,000	1,998,000	2,293,760
10	Jan 15, 2026 01:05	4,299	165,831,874	140,880,000	999,000	2,289,664
11	Jan 15, 2026 01:08	4,299	164,189,323	139,865,000	1,998,000	2,289,664
12	Jan 15, 2026 01:12	4,299	164,777,877	137,882,000	3,996,000	2,404,352
13	Jan 15, 2026 00:29	4,300	166,909,030	139,910,000	1,998,000	2,404,352
14	Jan 15, 2026 00:42	4,300	170,108,621	139,910,000	1,998,000	2,289,664
15	Jan 15, 2026 00:52	4,300	166,243,501	138,893,000	2,997,000	2,392,064
16	Jan 15, 2026 00:33	4,301	165,398,096	139,934,000	1,999,000	2,396,160
17	Jan 15, 2026 00:33	4,301	166,289,837	139,939,000	1,999,000	2,289,664
18	Jan 15, 2026 00:38	4,301	168,791,324	139,924,000	1,998,000	2,289,664
19	Jan 15, 2026 00:40	4,301	163,844,668	138,932,000	2,998,000	2,408,448
20	Jan 15, 2026 00:45	4,301	164,114,455	140,945,000	999,000	2,289,664
21	Jan 15, 2026 00:53	4,301	168,635,992	139,943,000	1,999,000	2,289,664
22	Jan 15, 2026 00:57	4,301	165,250,996	140,918,000	999,000	2,404,352
23	Jan 15, 2026 00:58	4,301	167,868,364	139,948,000	1,999,000	2,404,352
24	Jan 15, 2026 01:01	4,301	167,967,595	138,951,000	2,998,000	2,404,352
25	Jan 15, 2026 01:06	4,301	162,419,000	138,939,000	2,998,000	2,404,352
26	Jan 15, 2026 01:10	4,301	165,601,355	138,922,000	2,998,000	2,392,064
27	Jan 15, 2026 00:41	4,302	164,761,742	139,974,000	1,999,000	2,289,664
28	Jan 15, 2026 00:43	4,302	165,761,702	139,955,000	1,999,000	2,289,664
29	Jan 15, 2026 00:48	4,302	165,184,046	139,958,000	1,999,000	2,510,848
30	Jan 15, 2026 01:05	4,302	167,764,230	140,963,000	999,000	2,289,664
31	Jan 15, 2026 01:08	4,302	169,071,450	139,954,000	1,999,000	2,396,160
32	Jan 15, 2026 00:36	4,303	163,420,839	140,013,000	2,000,000	2,392,064
33	Jan 15, 2026 00:37	4,303	165,787,557	139,992,000	1,999,000	2,289,664
34	Jan 15, 2026 00:50	4,303	165,051,834	138,993,000	2,999,000	2,404,352
35	Jan 15, 2026 01:05	4,303	163,850,272	140,004,000	2,000,000	2,400,256
36	Jan 15, 2026 01:08	4,303	163,972,269	137,984,000	3,999,000	2,392,064
37	Jan 15, 2026 01:08	4,303	165,685,328	139,007,000	3,000,000	2,289,664
38	Jan 15, 2026 01:10	4,303	163,658,803	139,987,000	1,999,000	2,400,256
39	Jan 15, 2026 00:30	4,304	173,146,882	141,024,000	1,000,000	2,289,664
40	Jan 15, 2026 00:37	4,304	167,779,598	141,042,000	1,000,000	2,289,664
41	Jan 15, 2026 00:44	4,304	170,181,028	140,037,000	2,000,000	2,289,664
42	Jan 15, 2026 00:51	4,304	168,328,348	140,024,000	2,000,000	2,289,664
43	Jan 15, 2026 00:53	4,304	164,600,290	136,025,000	6,001,000	2,289,664
44	Jan 15, 2026 01:02	4,304	164,260,449	141,042,000	1,000,000	2,289,664
45	Jan 15, 2026 01:04	4,304	163,548,459	140,031,000	2,000,000	2,289,664
46	Jan 15, 2026 01:09	4,304	166,003,547	139,026,000	3,000,000	2,396,160
47	Jan 15, 2026 00:48	4,305	165,261,180	140,049,000	2,000,000	2,289,664
48	Jan 15, 2026 00:52	4,305	166,378,539	140,062,000	2,000,000	2,506,752
49	Jan 15, 2026 00:52	4,305	164,665,008	141,081,000	1,000,000	2,289,664
50	Jan 15, 2026 00:53	4,305	168,588,789	141,079,000	1,000,000	2,289,664
51	Jan 15, 2026 01:03	4,305	166,537,176	141,065,000	1,000,000	2,289,664
52	Jan 15, 2026 01:05	4,305	166,254,799	140,076,000	2,001,000	2,289,664
53	Jan 15, 2026 01:07	4,305	168,780,789	141,069,000	1,000,000	2,289,664
54	Jan 15, 2026 00:32	4,306	167,356,701	140,098,000	2,001,000	2,289,664
55	Jan 15, 2026 00:38	4,306	165,859,095	139,103,000	3,002,000	2,400,256
56	Jan 15, 2026 00:41	4,306	165,029,317	140,106,000	2,001,000	2,289,664
57	Jan 15, 2026 00:42	4,306	167,919,153	141,085,000	1,000,000	2,289,664
58	Jan 15, 2026 00:43	4,306	165,787,015	140,091,000	2,001,000	2,289,664
59	Jan 15, 2026 00:46	4,306	163,238,723	138,095,000	4,002,000	2,400,256
60	Jan 15, 2026 00:55	4,306	164,007,674	141,100,000	1,000,000	2,289,664
61	Jan 15, 2026 01:00	4,306	169,230,214	139,090,000	3,001,000	2,289,664
62	Jan 15, 2026 01:00	4,306	166,169,301	140,091,000	2,001,000	2,289,664
63	Jan 15, 2026 01:01	4,306	163,843,844	141,088,000	1,000,000	2,510,848
64	Jan 15, 2026 01:03	4,306	164,440,580	137,088,000	5,003,000	2,289,664
65	Jan 15, 2026 01:03	4,306	162,799,584	141,112,000	1,000,000	2,404,352
66	Jan 15, 2026 01:04	4,306	169,654,059	140,094,000	2,001,000	2,400,256
67	Jan 15, 2026 01:07	4,306	163,564,527	140,112,000	2,001,000	2,400,256
68	Jan 15, 2026 01:12	4,306	170,910,868	140,088,000	2,001,000	2,396,160
69	Jan 15, 2026 00:30	4,307	171,185,105	140,131,000	2,001,000	2,289,664
70	Jan 15, 2026 00:34	4,307	173,013,091	141,144,000	1,001,000	2,289,664
71	Jan 15, 2026 00:40	4,307	170,694,722	140,139,000	2,001,000	2,506,752
72	Jan 15, 2026 00:43	4,307	168,459,860	141,117,000	1,000,000	2,289,664
73	Jan 15, 2026 00:46	4,307	168,805,101	139,119,000	3,002,000	2,396,160
74	Jan 15, 2026 00:47	4,307	174,634,953	141,131,000	1,000,000	2,396,160
75	Jan 15, 2026 00:49	4,307	166,345,022	141,139,000	1,000,000	2,510,848
76	Jan 15, 2026 00:57	4,307	164,297,466	140,126,000	2,001,000	2,289,664
77	Jan 15, 2026 00:58	4,307	167,607,120	141,146,000	1,001,000	2,400,256
78	Jan 15, 2026 01:05	4,307	168,882,147	141,144,000	1,001,000	2,506,752
79	Jan 15, 2026 01:06	4,307	166,963,714	140,134,000	2,001,000	2,404,352
80	Jan 15, 2026 01:08	4,307	166,692,014	141,141,000	1,001,000	2,400,256
81	Jan 15, 2026 00:30	4,308	170,284,137	139,152,000	3,003,000	2,523,136
82	Jan 15, 2026 00:31	4,308	168,671,215	140,166,000	2,002,000	2,289,664
83	Jan 15, 2026 00:32	4,308	172,118,478	139,147,000	3,003,000	2,404,352
84	Jan 15, 2026 00:32	4,308	165,937,621	139,156,000	3,003,000	2,289,664
85	Jan 15, 2026 00:32	4,308	165,009,030	141,169,000	1,001,000	2,396,160
86	Jan 15, 2026 00:37	4,308	164,587,291	141,154,000	1,001,000	2,404,352
87	Jan 15, 2026 00:39	4,308	166,317,324	140,159,000	2,002,000	2,289,664
88	Jan 15, 2026 00:46	4,308	167,453,759	140,163,000	2,002,000	2,289,664
89	Jan 15, 2026 00:47	4,308	163,369,192	140,161,000	2,002,000	2,289,664
90	Jan 15, 2026 00:50	4,308	169,099,758	139,149,000	3,003,000	2,396,160
91	Jan 15, 2026 00:56	4,308	163,635,109	140,150,000	2,002,000	2,289,664
92	Jan 15, 2026 01:01	4,308	167,967,463	140,167,000	2,002,000	2,289,664
93	Jan 15, 2026 01:05	4,308	168,735,908	141,159,000	1,001,000	2,400,256
94	Jan 15, 2026 01:08	4,308	165,207,247	140,153,000	2,002,000	2,289,664
95	Jan 15, 2026 00:32	4,309	166,628,398	141,206,000	1,001,000	2,289,664
96	Jan 15, 2026 00:38	4,309	164,992,226	140,198,000	2,002,000	2,289,664
97	Jan 15, 2026 00:39	4,309	172,955,309	142,194,000	0	2,289,664
98	Jan 15, 2026 00:42	4,309	166,868,520	140,197,000	2,002,000	2,289,664
99	Jan 15, 2026 00:45	4,309	164,747,500	140,191,000	2,002,000	2,400,256
100	Jan 15, 2026 00:47	4,309	168,176,718	140,199,000	2,002,000	2,396,160
101	Jan 15, 2026 00:50	4,309	164,806,000	141,188,000	1,001,000	2,400,256
102	Jan 15, 2026 00:51	4,309	163,031,198	141,205,000	1,001,000	2,289,664
103	Jan 15, 2026 00:57	4,309	168,381,734	141,212,000	1,001,000	2,289,664
104	Jan 15, 2026 01:00	4,309	166,314,194	141,183,000	1,001,000	2,289,664
105	Jan 15, 2026 01:02	4,309	166,058,603	140,179,000	2,002,000	2,289,664
106	Jan 15, 2026 01:04	4,309	168,090,386	141,181,000	1,001,000	2,289,664
107	Jan 15, 2026 01:05	4,309	168,769,445	140,183,000	2,002,000	2,289,664
108	Jan 15, 2026 00:31	4,310	168,830,169	141,239,000	1,001,000	2,289,664
109	Jan 15, 2026 00:31	4,310	172,233,063	138,234,000	4,006,000	2,396,160
110	Jan 15, 2026 00:34	4,310	164,789,211	140,234,000	2,003,000	2,289,664
111	Jan 15, 2026 00:44	4,310	165,445,603	141,236,000	1,001,000	2,400,256
112	Jan 15, 2026 00:51	4,310	163,403,641	139,231,000	3,004,000	2,289,664
113	Jan 15, 2026 00:55	4,310	165,073,863	141,222,000	1,001,000	2,400,256
114	Jan 15, 2026 01:00	4,310	165,571,819	140,213,000	2,003,000	2,404,352
115	Jan 15, 2026 01:00	4,310	162,776,268	142,234,000	0	2,510,848
116	Jan 15, 2026 01:00	4,310	173,860,466	141,244,000	1,001,000	2,289,664
117	Jan 15, 2026 01:02	4,310	165,160,730	141,225,000	1,001,000	2,289,664
118	Jan 15, 2026 01:08	4,310	163,931,727	142,236,000	0	2,400,256
119	Jan 15, 2026 01:00	4,311	170,190,306	142,278,000	0	2,510,848
120	Jan 15, 2026 01:12	4,311	169,127,171	142,273,000	0	2,289,664
121	Jan 15, 2026 00:29	4,312	167,344,259	139,296,000	3,006,000	2,404,352
122	Jan 15, 2026 00:35	4,312	167,562,908	141,296,000	1,002,000	2,289,664
123	Jan 15, 2026 00:41	4,312	167,849,349	137,275,000	5,010,000	2,289,664
124	Jan 15, 2026 00:45	4,312	163,260,611	138,293,000	4,008,000	2,396,160
125	Jan 15, 2026 00:54	4,312	164,726,194	142,303,000	0	2,392,064
126	Jan 15, 2026 00:56	4,312	164,998,821	140,308,000	2,004,000	2,289,664
127	Jan 15, 2026 01:05	4,312	164,876,117	142,312,000	0	2,289,664
128	Jan 15, 2026 01:06	4,312	170,905,223	141,291,000	1,002,000	2,289,664
129	Jan 15, 2026 01:07	4,312	169,997,285	141,285,000	1,002,000	2,408,448
130	Jan 15, 2026 01:09	4,312	167,571,083	138,292,000	4,008,000	2,404,352
131	Jan 15, 2026 01:10	4,312	166,028,858	141,285,000	1,002,000	2,289,664
132	Jan 15, 2026 00:56	4,313	167,923,647	141,327,000	1,002,000	2,400,256
133	Jan 15, 2026 00:58	4,313	170,112,005	142,317,000	0	2,289,664
134	Jan 15, 2026 01:00	4,313	166,875,622	141,324,000	1,002,000	2,400,256
135	Jan 15, 2026 01:08	4,314	166,173,881	141,359,000	1,002,000	2,289,664
136	Jan 15, 2026 01:09	4,314	170,399,929	140,355,000	2,005,000	2,289,664
137	Jan 15, 2026 00:32	4,315	174,196,326	140,403,000	1,991,000	2,289,664
138	Jan 15, 2026 00:33	4,315	173,757,193	139,385,000	3,008,000	2,289,664
139	Jan 15, 2026 00:44	4,316	171,203,838	139,416,000	3,008,000	2,289,664
140	Jan 15, 2026 00:54	4,316	170,288,097	140,427,000	2,006,000	2,289,664
141	Jan 15, 2026 00:49	4,318	167,208,914	140,486,000	2,006,000	2,400,256
142	Jan 15, 2026 00:35	4,319	170,060,543	141,522,000	996,000	2,404,352
143	Jan 15, 2026 00:39	4,321	175,236,195	138,599,000	3,988,000	2,396,160
144	Jan 15, 2026 00:36	4,323	168,021,569	140,652,000	1,995,000	2,289,664
145	Jan 15, 2026 00:36	4,323	166,189,083	141,668,000	997,000	2,289,664
146	Jan 15, 2026 00:49	4,323	168,316,739	142,655,000	0	2,289,664
147	Jan 15, 2026 00:32	4,324	168,934,354	140,683,000	1,995,000	2,281,472
148	Feb 19, 2026 00:00	4,331	168,279,473	139,929,000	2,998,000	2,289,664
149	Feb 19, 2026 00:00	4,331	166,974,754	141,930,000	999,000	2,289,664
150	Jan 15, 2026 00:35	4,333	164,315,552	139,997,000	2,999,000	2,289,664
151	Jan 15, 2026 00:54	4,333	167,137,001	141,001,000	2,000,000	2,289,664
152	Feb 19, 2026 00:00	4,337	170,573,584	140,126,000	3,002,000	2,408,448
153	Jan 15, 2026 00:32	4,483	176,484,849	145,936,000	1,999,000	2,289,664
154	Jan 15, 2026 00:29	4,864	189,096,456	160,528,000	0	2,404,352
155	Jan 15, 2026 01:11	4,933	191,462,199	161,781,000	998,000	2,408,448
156	Jan 15, 2026 01:11	4,934	186,005,669	160,834,000	1,997,000	2,490,368
157	Jan 15, 2026 00:29	5,022	187,539,407	162,720,000	2,994,000	2,289,664
158	Jan 15, 2026 01:11	5,085	193,393,158	164,816,000	2,996,000	2,392,064
159	Jan 15, 2026 00:29	5,374	203,700,373	177,340,000	0	2,289,664

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1