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 11:31

Dominique GarmierScore: 34,602Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 15, 2026 10:07	34,387	1,156,149,746	1,121,758,000	12,997,000	2,330,624
2	Mar 15, 2026 10:07	34,398	1,162,302,366	1,123,143,000	11,990,000	2,437,120
3	Mar 15, 2026 11:10	34,426	1,165,105,020	1,123,077,000	12,989,000	2,445,312
4	Mar 15, 2026 10:07	34,449	1,167,718,948	1,126,835,000	9,998,000	2,461,696
5	Mar 15, 2026 10:17	34,477	1,159,298,151	1,129,728,000	7,998,000	2,326,528
6	Mar 15, 2026 10:07	34,479	1,164,998,244	1,124,812,000	12,997,000	2,330,624
7	Mar 15, 2026 11:31	34,489	1,159,850,934	1,127,145,000	10,991,000	2,260,992
8	Mar 15, 2026 10:17	34,490	1,168,178,722	1,125,191,000	12,990,000	2,514,944
9	Mar 15, 2026 10:17	34,528	1,162,766,602	1,127,417,000	11,993,000	2,506,752
10	Mar 15, 2026 10:07	34,565	1,170,874,696	1,127,638,000	12,995,000	2,318,336
11	Mar 15, 2026 10:17	34,574	1,169,810,205	1,128,929,000	11,999,000	2,330,624
12	Mar 15, 2026 10:17	34,588	1,167,327,963	1,129,409,000	11,993,000	2,420,736
13	Mar 15, 2026 10:07	34,598	1,172,542,198	1,128,729,000	12,996,000	2,273,280
14	Mar 15, 2026 10:33	34,602	1,173,169,667	1,128,857,000	12,998,000	2,416,640
15	Mar 15, 2026 10:07	34,611	1,167,864,347	1,128,184,000	13,989,000	2,326,528
16	Mar 15, 2026 11:10	34,611	1,174,184,338	1,127,169,000	14,988,000	2,297,856
17	Mar 15, 2026 10:33	34,646	1,167,640,799	1,133,336,000	9,994,000	2,273,280
18	Mar 15, 2026 11:31	34,650	1,168,695,359	1,127,473,000	15,992,000	2,457,600
19	Mar 15, 2026 10:33	34,673	1,176,328,677	1,133,221,000	10,982,000	2,273,280
20	Mar 15, 2026 11:31	34,688	1,174,257,020	1,134,721,000	9,997,000	2,273,280
21	Mar 15, 2026 10:17	34,724	1,180,846,341	1,131,922,000	13,986,000	2,322,432
22	Mar 15, 2026 10:07	34,756	1,174,067,964	1,132,950,000	13,987,000	2,318,336
23	Mar 15, 2026 11:10	34,786	1,181,647,297	1,136,957,000	10,989,000	2,273,280
24	Mar 15, 2026 10:17	34,846	1,181,686,604	1,139,943,000	9,990,000	2,273,280
25	Mar 15, 2026 10:07	34,942	1,187,661,877	1,142,113,000	10,981,000	2,273,280
26	Mar 15, 2026 10:17	34,960	1,181,967,102	1,142,677,000	10,987,000	2,330,624
27	Mar 15, 2026 10:17	34,980	1,187,062,749	1,143,353,000	10,984,000	2,379,776

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