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 listMar 15, 2026 16:44

Dominique GarmierScore: 32,435Success

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 15, 2026 16:08	32,288	1,095,894,443	1,059,511,000	5,997,000	2,506,752
2	Mar 15, 2026 16:18	32,297	1,091,848,293	1,057,810,000	7,998,000	2,387,968
3	Mar 15, 2026 16:18	32,301	1,091,813,423	1,057,920,000	7,999,000	2,494,464
4	Mar 15, 2026 16:08	32,306	1,091,721,085	1,055,105,000	10,990,000	2,437,120
5	Mar 15, 2026 16:53	32,307	1,089,642,046	1,056,144,000	9,991,000	2,498,560
6	Mar 15, 2026 16:18	32,317	1,094,575,584	1,055,457,000	10,994,000	2,457,600
7	Mar 15, 2026 16:28	32,320	1,092,189,232	1,057,549,000	8,996,000	2,453,504
8	Mar 15, 2026 16:28	32,323	1,093,007,043	1,059,668,000	6,997,000	2,285,568
9	Mar 15, 2026 16:34	32,327	1,095,471,083	1,059,793,000	6,998,000	2,494,464
10	Mar 15, 2026 16:28	32,336	1,094,005,153	1,056,083,000	10,990,000	2,519,040
11	Mar 15, 2026 16:53	32,338	1,093,558,241	1,060,174,000	6,994,000	2,277,376
12	Mar 15, 2026 16:49	32,342	1,092,873,747	1,058,281,000	8,993,000	2,314,240
13	Mar 15, 2026 16:53	32,349	1,094,673,948	1,059,511,000	7,996,000	2,453,504
14	Mar 15, 2026 16:39	32,355	1,096,715,082	1,057,728,000	9,997,000	2,498,560
15	Mar 15, 2026 16:28	32,358	1,096,209,872	1,060,813,000	6,998,000	2,453,504
16	Mar 15, 2026 16:24	32,365	1,094,290,706	1,059,047,000	8,991,000	2,383,872
17	Mar 15, 2026 16:08	32,366	1,091,354,131	1,061,080,000	6,993,000	2,506,752
18	Mar 15, 2026 16:08	32,375	1,094,345,010	1,059,389,000	8,994,000	2,486,272
19	Mar 15, 2026 16:53	32,378	1,105,016,276	1,059,488,000	8,995,000	2,498,560
20	Mar 15, 2026 16:28	32,382	1,091,871,421	1,060,619,000	7,997,000	2,285,568
21	Mar 15, 2026 16:08	32,384	1,099,699,267	1,059,687,000	8,997,000	2,330,624
22	Mar 15, 2026 16:08	32,396	1,094,679,835	1,060,089,000	8,992,000	2,498,560
23	Mar 15, 2026 16:44	32,397	1,095,115,930	1,064,107,000	4,995,000	2,334,720
24	Mar 15, 2026 16:49	32,397	1,098,942,721	1,059,115,000	9,991,000	2,412,544
25	Mar 15, 2026 16:14	32,408	1,094,852,866	1,059,457,000	9,994,000	2,314,240
26	Mar 15, 2026 16:53	32,424	1,093,823,991	1,061,994,000	7,992,000	2,498,560
27	Mar 15, 2026 16:28	32,431	1,100,469,448	1,059,223,000	10,991,000	2,498,560
28	Mar 15, 2026 16:18	32,435	1,092,443,205	1,061,368,000	8,994,000	2,506,752
29	Mar 15, 2026 16:53	32,439	1,095,717,548	1,063,478,000	6,996,000	2,281,472
30	Mar 15, 2026 16:14	32,456	1,099,847,768	1,064,070,000	6,993,000	2,498,560
31	Mar 15, 2026 16:24	32,463	1,096,782,685	1,060,303,000	10,992,000	2,379,776
32	Mar 15, 2026 16:28	32,469	1,102,686,700	1,062,490,000	8,995,000	2,506,752
33	Mar 15, 2026 16:18	32,471	1,098,183,460	1,061,554,000	9,995,000	2,281,472
34	Mar 15, 2026 16:24	32,482	1,101,272,671	1,063,902,000	7,999,000	2,281,472
35	Mar 15, 2026 16:14	32,486	1,098,096,763	1,065,057,000	6,993,000	2,281,472
36	Mar 15, 2026 16:18	32,491	1,098,723,188	1,058,215,000	13,989,000	2,404,352
37	Mar 15, 2026 16:08	32,500	1,106,121,487	1,059,515,000	12,994,000	2,506,752
38	Mar 15, 2026 16:39	32,503	1,100,664,644	1,063,595,000	8,996,000	2,281,472
39	Mar 15, 2026 16:39	32,524	1,104,317,773	1,062,313,000	10,992,000	2,285,568
40	Mar 15, 2026 16:34	32,548	1,107,043,503	1,063,089,000	10,990,000	2,281,472
41	Mar 15, 2026 16:08	32,548	1,100,718,690	1,063,098,000	10,990,000	2,506,752
42	Mar 15, 2026 16:53	32,554	1,103,768,692	1,064,297,000	9,993,000	2,334,720
43	Mar 15, 2026 16:28	32,555	1,101,760,525	1,067,314,000	6,995,000	2,494,464
44	Mar 15, 2026 16:44	32,577	1,102,026,066	1,066,051,000	8,992,000	2,486,272
45	Mar 15, 2026 16:34	32,739	1,108,806,710	1,068,386,000	11,993,000	2,359,296
46	Mar 15, 2026 16:08	32,752	1,109,793,800	1,070,813,000	9,988,000	2,285,568
47	Mar 15, 2026 16:53	32,979	1,115,564,452	1,080,324,000	7,994,000	2,498,560
48	Mar 15, 2026 16:49	33,027	1,115,419,029	1,079,904,000	9,989,000	2,289,664
49	Mar 15, 2026 16:53	33,045	1,119,101,683	1,083,475,000	6,996,000	2,400,256
50	Mar 15, 2026 16:18	33,109	1,123,591,325	1,086,589,000	5,997,000	2,469,888
51	Mar 15, 2026 16:18	33,152	1,123,293,265	1,085,014,000	8,991,000	2,498,560
52	Mar 15, 2026 16:18	33,180	1,122,652,312	1,085,934,000	8,991,000	2,461,696
53	Mar 15, 2026 16:44	33,208	1,129,558,053	1,085,880,000	9,989,000	2,338,816
54	Mar 15, 2026 16:28	33,227	1,130,778,926	1,088,510,000	7,996,000	2,285,568

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