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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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 7, 2026 04:18

zielaj

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Source Code

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Challenge History

Date	Challenger	Cost	Type	Status
Jul 4, 2026 05:51	Victor Mercklé	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Jul 4, 2026 05:51	0	11,061,268	1,046,000	2,131,000	2,121,728	expected "16384 ", got "349 "	stderr
2	Jul 4, 2026 05:51	0	10,936,235	1,538,000	1,537,000	2,121,728	expected "16384 ", got "349 "	stderr
3	Jul 4, 2026 05:51	0	10,944,816	1,533,000	1,533,000	2,121,728	expected "16384 ", got "349 "	stderr
4	Jan 7, 2026 22:56	3,033	127,420,880	98,075,000	2,001,000	2,535,424
5	Jan 7, 2026 04:14	3,057	121,630,327	98,892,000	1,997,000	2,306,048
6	Jan 7, 2026 14:10	3,069	120,721,625	99,264,000	2,005,000	2,404,352
7	Jan 7, 2026 22:56	3,071	130,644,525	98,320,000	3,009,000	2,412,544
8	Jan 7, 2026 22:56	3,075	126,784,893	99,457,000	2,009,000	2,400,256
9	Jan 7, 2026 04:13	3,080	126,614,051	101,632,000	0	2,400,256
10	Jan 7, 2026 22:56	3,097	132,558,557	100,188,000	2,003,000	2,535,424
11	Jan 7, 2026 14:10	3,098	127,284,655	101,221,000	1,002,000	2,273,280
12	Jan 7, 2026 04:14	3,102	131,335,121	101,375,000	1,003,000	2,400,256
13	Jan 7, 2026 04:18	3,115	133,011,119	100,797,000	1,995,000	2,408,448
14	Jan 7, 2026 04:14	3,116	122,358,520	100,822,000	1,996,000	2,535,424
15	Jan 7, 2026 14:10	3,117	128,366,077	100,875,000	1,997,000	2,404,352
16	Jan 7, 2026 22:56	3,118	125,177,092	99,897,000	2,996,000	2,412,544
17	Jan 7, 2026 04:13	3,119	124,011,132	100,922,000	1,998,000	2,502,656
18	Jan 7, 2026 04:13	3,123	124,457,910	101,052,000	2,001,000	2,273,280
19	Jan 7, 2026 22:55	3,124	124,998,427	101,096,000	2,001,000	2,408,448
20	Jan 7, 2026 04:17	3,127	124,157,465	100,190,000	3,005,000	2,412,544
21	Jan 7, 2026 04:17	3,131	126,112,924	101,319,000	2,006,000	2,400,256
22	Jan 7, 2026 22:55	3,131	129,090,015	102,336,000	1,003,000	2,404,352
23	Jan 7, 2026 14:10	3,132	126,168,780	101,350,000	2,006,000	2,400,256
24	Jan 7, 2026 14:10	3,137	131,593,529	102,524,000	1,005,000	2,404,352
25	Jan 7, 2026 22:56	3,138	133,038,213	102,553,000	1,005,000	2,412,544
26	Jan 7, 2026 04:15	3,138	131,177,926	103,548,000	0	2,404,352
27	Jan 7, 2026 22:55	3,140	129,269,647	101,630,000	1,992,000	2,273,280
28	Jan 7, 2026 14:10	3,146	125,106,546	101,827,000	1,996,000	2,535,424
29	Jan 7, 2026 22:56	3,149	128,044,732	102,929,000	999,000	2,404,352
30	Jan 7, 2026 14:10	3,156	127,502,232	102,159,000	2,003,000	2,535,424
31	Jan 8, 2026 01:15	3,157	123,824,353	103,173,000	1,001,000	2,535,424
32	Jan 7, 2026 04:17	3,161	122,563,613	102,318,000	2,006,000	2,400,256
33	Jan 7, 2026 14:10	3,163	128,279,728	102,361,000	2,007,000	2,408,448
34	Jan 8, 2026 01:15	3,170	132,590,684	103,607,000	1,005,000	2,535,424
35	Jan 7, 2026 04:15	3,175	127,956,592	101,797,000	2,994,000	2,535,424
36	Jan 7, 2026 04:15	3,176	128,379,146	101,812,000	2,994,000	2,396,160
37	Jan 7, 2026 14:10	3,189	125,053,454	103,229,000	2,004,000	2,535,424
38	Jan 7, 2026 22:56	3,192	123,463,328	102,323,000	3,009,000	2,535,424
39	Jan 8, 2026 01:15	3,206	129,557,467	104,799,000	998,000	2,273,280
40	Jan 7, 2026 04:18	3,211	128,271,683	103,967,000	1,999,000	2,535,424
41	Jan 7, 2026 04:18	3,258	131,868,169	107,513,000	0	2,400,256
42	Jan 7, 2026 22:56	3,318	131,783,290	108,501,000	1,004,000	2,535,424

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