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.

Date	Author	Language	Status	Score
Jun 27, 2026 17:32	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 17:27	Victor Mercklé	CPPg++13.3.0	Success	4,697+0.45 RP
Jun 27, 2026 17:11	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 17:04	Victor Mercklé	CPPg++13.3.0	Success	4,729
Jun 27, 2026 16:59	Victor Mercklé	CPPg++13.3.0	Success	4,698+3.17 RP
Jun 27, 2026 16:51	Victor Mercklé	CPPg++13.3.0	Success	18,499
Jun 27, 2026 16:45	Victor Mercklé	CPPg++13.3.0	Success	4,722
Jun 27, 2026 16:40	Victor Mercklé	CPPg++13.3.0	Success	4,713
Jun 27, 2026 16:29	Victor Mercklé	CPPg++13.3.0	Success	4,705+19.69 RP
Jun 27, 2026 16:05	Victor Mercklé	CPPg++13.3.0	Success	4,763
Jun 27, 2026 15:47	Victor Mercklé	CPPg++13.3.0	Success	4,749+0.89 RP
Jun 27, 2026 15:41	Victor Mercklé	CPPg++13.3.0	Success	4,777
Jun 27, 2026 15:34	Victor Mercklé	CPPg++13.3.0	Success	4,801
Jun 27, 2026 15:26	Victor Mercklé	CPPg++13.3.0	Success	124,977
Jun 27, 2026 15:16	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 15:11	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 15:06	Victor Mercklé	CPPg++13.3.0	Success	4,751+1.77 RP
Jun 27, 2026 14:58	Victor Mercklé	CPPg++13.3.0	Success	4,755+9.25 RP
Jun 27, 2026 14:53	Victor Mercklé	CPPg++13.3.0	Success	4,776+7.43 RP
Jun 27, 2026 14:48	Andrey Likhachev	RUSTrust-1.79.0	Success	16,350+24.84 RP
Jun 27, 2026 14:28	Andrey Likhachev	RUSTrust-1.79.0	Success	17,042+350.30 RP
Jun 27, 2026 14:19	Victor Mercklé	CPPg++13.3.0	Success	5,021
Jun 27, 2026 13:54	Victor Mercklé	CPPg++13.3.0	Success	5,141
Jun 27, 2026 13:49	Victor Mercklé	CPPg++13.3.0	Success	155,028
Jun 27, 2026 13:43	Andrey Likhachev	RUSTrust-1.79.0	Success	46,866+5.00 RP
Jun 27, 2026 13:42	Victor Mercklé	CPPg++13.3.0	Success	116,046
Jun 27, 2026 13:27	Victor Mercklé	CPPg++13.3.0	Success	5,229
Jun 27, 2026 13:22	Victor Mercklé	CPPg++13.3.0	Success	83,802
Jun 27, 2026 13:17	Shikhar Soni	CPPg++14.2.0	Success	18,959+42.32 RP
Jun 27, 2026 13:11	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 13:08	Shikhar Soni	CPPg++14.2.0	Success	20,675
Jun 27, 2026 13:06	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 12:54	Victor Mercklé	CPPg++13.3.0	Success	74,938
Jun 27, 2026 12:54	Shikhar Soni	CPPg++14.2.0	Success	20,613+490.13 RP
Jun 27, 2026 12:48	Victor Mercklé	CPPg++13.3.0	Success	67,807
Jun 27, 2026 12:43	Victor Mercklé	CPPg++13.3.0	Success	64,289
Jun 27, 2026 12:24	Victor Mercklé	CPPg++13.3.0	Success	87,463
Jun 27, 2026 12:14	Victor Mercklé	CPPg++13.3.0	Success	71,531
Jun 27, 2026 11:58	Victor Mercklé	CPPg++13.3.0	Success	59,134
Jun 27, 2026 11:47	Victor Mercklé	CPPg++13.3.0	Success	4,793+1.74 RP
Jun 27, 2026 11:19	Victor Mercklé	CPPg++13.3.0	Success	4,884
Jun 27, 2026 10:48	Victor Mercklé	CPPg++13.3.0	Success	5,564
Jun 27, 2026 10:43	Victor Mercklé	CPPg++13.3.0	Success	5,238
Jun 27, 2026 10:33	Victor Mercklé	CPPg++13.3.0	Success	82,167
Jun 27, 2026 10:20	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 08:53	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 08:44	Victor Mercklé	CPPg++13.3.0	Success	5,575
Jun 27, 2026 08:33	Victor Mercklé	CPPg++13.3.0	Success	5,206
Jun 27, 2026 08:17	Victor Mercklé	CPPg++13.3.0	Success	6,555
Jun 27, 2026 08:07	Victor Mercklé	CPPg++13.3.0	Success	7,033
Jun 27, 2026 07:50	Victor Mercklé	CPPg++13.3.0	Success	6,331
Jun 27, 2026 07:45	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 07:20	Victor Mercklé	CPPg++13.3.0	Success	6,286
Jun 27, 2026 07:13	Victor Mercklé	CPPg++13.3.0	Success	7,390
Jun 27, 2026 06:54	Victor Mercklé	CPPg++13.3.0	Success	4,797+2.17 RP
Jun 27, 2026 06:43	Victor Mercklé	CPPg++13.3.0	Success	4,924
Jun 27, 2026 06:38	Victor Mercklé	CPPg++13.3.0	Success	4,877
Jun 27, 2026 06:21	Victor Mercklé	CPPg++13.3.0	Success	4,934
Jun 27, 2026 06:07	Victor Mercklé	CPPg++13.3.0	Success	4,918
Jun 27, 2026 05:55	Victor Mercklé	CPPg++13.3.0	Success	4,911
Jun 27, 2026 05:40	Victor Mercklé	CPPg++13.3.0	Success	6,417
Jun 27, 2026 05:29	Victor Mercklé	CPPg++13.3.0	Success	14,037
Jun 27, 2026 05:22	Victor Mercklé	CPPg++13.3.0	Success	4,809
Jun 27, 2026 04:45	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 04:34	Victor Mercklé	CPPg++13.3.0	Success	4,991
Jun 27, 2026 04:23	Victor Mercklé	CPPg++13.3.0	Success	10,266
Jun 27, 2026 04:13	Victor Mercklé	CPPg++13.3.0	Success	4,806
Jun 27, 2026 03:55	Victor Mercklé	CPPg++13.3.0	Success	4,809
Jun 27, 2026 03:47	Victor Mercklé	CPPg++13.3.0	Success	4,802+0.43 RP
Jun 27, 2026 03:39	Victor Mercklé	CPPg++13.3.0	Success	4,803+2.17 RP
Jun 27, 2026 03:34	Victor Mercklé	CPPg++13.3.0	Success	4,922
Jun 27, 2026 03:29	Victor Mercklé	CPPg++13.3.0	Success	4,822
Jun 27, 2026 03:24	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 03:17	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 03:08	Victor Mercklé	CPPg++13.3.0	Success	4,876
Jun 27, 2026 03:00	Victor Mercklé	CPPg++13.3.0	Success	4,814
Jun 27, 2026 02:53	Victor Mercklé	CPPg++13.3.0	Success	4,974
Jun 27, 2026 02:50	Victor Mercklé	CPPg++13.3.0	Success	4,808+0.43 RP
Jun 27, 2026 02:42	Victor Mercklé	CPPg++13.3.0	Success	12,539
Jun 27, 2026 02:33	Victor Mercklé	CPPg++13.3.0	Success	9,125
Jun 27, 2026 02:18	Victor Mercklé	CPPg++13.3.0	Success	27,345
Jun 27, 2026 02:05	Victor Mercklé	CPPg++13.3.0	Success	12,526
Jun 27, 2026 01:54	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 01:43	Victor Mercklé	CPPg++13.3.0	Success	13,695
Jun 27, 2026 01:35	Victor Mercklé	CPPg++13.3.0	Success	4,809+0.86 RP
Jun 27, 2026 01:30	Victor Mercklé	CPPg++13.3.0	Success	4,869
Jun 27, 2026 01:25	Victor Mercklé	CPPg++13.3.0	Success	4,811+10.32 RP
Jun 27, 2026 01:17	Victor Mercklé	CPPg++13.3.0	Success	5,034
Jun 27, 2026 01:12	Victor Mercklé	CPPg++13.3.0	Success	4,888
Jun 27, 2026 00:50	Victor Mercklé	CPPg++13.3.0	Success	4,865
Jun 27, 2026 00:40	Victor Mercklé	CPPg++13.3.0	Success	4,943
Jun 27, 2026 00:35	Victor Mercklé	CPPg++13.3.0	Success	4,858
Jun 27, 2026 00:30	Victor Mercklé	CPPg++13.3.0	Success	21,767
Jun 27, 2026 00:25	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 00:18	Victor Mercklé	CPPg++13.3.0	Success	4,860+5.00 RP
Jun 26, 2026 17:22	Victor Mercklé	CPPg++13.3.0	Success	4,835+0.86 RP
Jun 26, 2026 17:17	Victor Mercklé	CPPg++13.3.0	Success	4,929
Jun 26, 2026 17:00	Victor Mercklé	CPPg++13.3.0	Success	7,014
Jun 26, 2026 16:54	Victor Mercklé	CPPg++13.3.0	Success	4,842
Jun 26, 2026 16:45	Victor Mercklé	CPPg++13.3.0	Success	4,849

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