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
Jul 7, 2026 10:08	Victor Mercklé	CSHARP10.0.7	Error
Jul 7, 2026 09:42	Victor Mercklé	GOgo1.26.2	Error
Jul 7, 2026 08:19	Victor Mercklé	CPPg++13.3.0	Success	3,280
Jul 7, 2026 07:59	Victor Mercklé	CPPg++13.3.0	Error
Jul 7, 2026 07:43	Victor Mercklé	CPPg++13.3.0	Success	3,640
Jul 6, 2026 18:19	Victor Mercklé	CPPg++13.3.0	Error
Jul 6, 2026 18:05	Victor Mercklé	CPPg++13.3.0	Success	3,257
Jul 6, 2026 18:00	Victor Mercklé	CPPg++13.3.0	Error
Jul 6, 2026 17:55	Victor Mercklé	CPPg++13.3.0	Success	3,400
Jul 6, 2026 17:50	Victor Mercklé	CPPg++13.3.0	Success	3,312
Jul 6, 2026 17:45	Victor Mercklé	CPPg++13.3.0	Error
Jul 6, 2026 17:40	Victor Mercklé	CPPg++13.3.0	Success	3,257
Jul 6, 2026 00:52	zielaj	CPPclang++18.1.3	Success	3,360
Jul 6, 2026 00:45	Victor Mercklé	CPPg++13.3.0	Success	18,519
Jul 6, 2026 00:43	zielaj	CPPclang++18.1.3	Success	3,191
Jul 6, 2026 00:43	zielaj	CPPclang++18.1.3	Success	3,169
Jul 6, 2026 00:35	Victor Mercklé	CPPg++13.3.0	Success	3,252
Jul 6, 2026 00:32	zielaj	CPPclang++18.1.3	Success	3,195
Jul 6, 2026 00:26	Victor Mercklé	CPPg++13.3.0	Success	3,341
Jul 6, 2026 00:23	zielaj	CPPclang++18.1.3	Success	3,153+26.04 RP
Jul 6, 2026 00:22	zielaj	CPPclang++18.1.3	Error
Jul 6, 2026 00:21	zielaj	CPPclang++18.1.3	Success	3,190
Jul 6, 2026 00:20	zielaj	CPPclang++18.1.3	Success	3,249
Jul 6, 2026 00:14	Victor Mercklé	CPPg++13.3.0	Success	3,257
Jul 6, 2026 00:09	Victor Mercklé	CPPg++13.3.0	Success	3,245+15.12 RP
Jul 5, 2026 23:59	Victor Mercklé	CPPg++13.3.0	Success	3,265
Jul 5, 2026 23:34	zielaj	CPPclang++18.1.3	Success	3,280
Jul 5, 2026 23:23	zielaj	CPPclang++18.1.3	Success	3,263
Jul 5, 2026 23:12	zielaj	CPPclang++20.1.2	Success	3,242
Jul 5, 2026 23:08	zielaj	CPPclang++18.1.3	Success	3,180
Jul 5, 2026 23:01	zielaj	CPPclang++18.1.3	Success	3,222
Jul 5, 2026 22:45	zielaj	CPPclang++18.1.3	Success	3,284
Jul 5, 2026 22:42	zielaj	CPPclang++18.1.3	Error
Jul 5, 2026 22:41	zielaj	CPPclang++20.1.2	Success	3,275
Jul 5, 2026 22:39	zielaj	CPPclang++20.1.2	Error
Jul 5, 2026 19:21	zielaj	CPPclang++18.1.3	Success	3,166+76.86 RP
Jul 5, 2026 19:20	zielaj	CPPclang++18.1.3	Error	+46.04 RP
Jul 5, 2026 16:06	zielaj	CPPclang++18.1.3	Error	+1'164.96 RP
Jul 5, 2026 16:03	zielaj	CPPclang++18.1.3	Error
Jul 5, 2026 14:58	zielaj	CPPclang++18.1.3	Error	+1'024.29 RP
Jul 5, 2026 14:54	zielaj	CPPclang++18.1.3	Error
Jul 5, 2026 14:48	zielaj	CPPclang++18.1.3	Error	+800.96 RP
Jul 5, 2026 14:27	zielaj	CPPclang++18.1.3	Error	+639.88 RP
Jul 5, 2026 03:09	zielaj	CPPclang++18.1.3	Error	+33.83 RP
Jul 5, 2026 03:06	zielaj	CPPclang++18.1.3	Error
Jul 5, 2026 03:05	zielaj	CPPclang++18.1.3	Error	+193.35 RP
Jul 4, 2026 20:56	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:53	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:52	zielaj	CPPclang++18.1.3	Error	+109.81 RP
Jul 4, 2026 20:50	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:47	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:45	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:41	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:28	zielaj	CPPclang++18.1.3	Error	+113.28 RP
Jul 4, 2026 20:14	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:12	zielaj	CPPclang++18.1.3	Error	+132.72 RP
Jul 4, 2026 20:07	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 20:01	zielaj	CPPclang++18.1.3	Error
Jul 4, 2026 19:57	zielaj	CPPclang++18.1.3	Success	307,903
Jul 3, 2026 18:42	Joshua Montross	CPPg++10.5.0	Success	123,238+81.14 RP
Jul 3, 2026 15:45	Victor Mercklé	CPPg++13.3.0	Success	3,269
Jul 3, 2026 15:28	Victor Mercklé	CPPg++13.3.0	Success	16,727
Jul 3, 2026 15:16	Victor Mercklé	CPPg++13.3.0	Success	3,460
Jul 3, 2026 15:10	Victor Mercklé	CPPg++13.3.0	Error
Jul 3, 2026 14:02	A_Shaman	CPPg++10.5.0	Success	37,590+0.94 RP
Jul 3, 2026 13:58	A_Shaman	CPPg++10.5.0	Success	37,845
Jul 3, 2026 13:52	A_Shaman	CPPg++10.5.0	Success	37,723+22.48 RP
Jul 3, 2026 13:41	A_Shaman	CPPg++10.5.0	Success	41,219+15.47 RP
Jul 3, 2026 13:32	A_Shaman	CPPg++10.5.0	Success	44,318
Jul 3, 2026 13:24	A_Shaman	CPPg++10.5.0	Success	44,126
Jul 3, 2026 13:12	A_Shaman	CPPg++10.5.0	Success	44,027+43.14 RP
Jul 3, 2026 13:05	A_Shaman	CPPg++10.5.0	Success	59,192
Jul 3, 2026 12:58	A_Shaman	CPPg++10.5.0	Success	54,598
Jul 3, 2026 12:47	A_Shaman	CPPg++10.5.0	Success	54,350+29.41 RP
Jul 3, 2026 09:28	Victor Mercklé	CPPg++13.3.0	Success	3,261+9.37 RP
Jul 3, 2026 09:23	Victor Mercklé	CPPg++13.3.0	Success	3,271+3.73 RP
Jul 3, 2026 09:13	Victor Mercklé	CPPg++13.3.0	Success	13,663
Jul 3, 2026 09:02	Victor Mercklé	CPPg++13.3.0	Success	5,599
Jul 3, 2026 02:39	f0xeri	CPPg++10.5.0	Success	193,032+51.80 RP
Jul 2, 2026 13:58	Victor Mercklé	CPPg++13.3.0	Success	6,565
Jul 2, 2026 13:51	Victor Mercklé	CPPg++13.3.0	Success	3,704
Jul 2, 2026 13:41	Victor Mercklé	CPPg++13.3.0	Success	5,264
Jul 2, 2026 13:33	Victor Mercklé	CPPg++13.3.0	Success	3,275+13.00 RP
Jul 2, 2026 13:28	Victor Mercklé	CPPg++13.3.0	Success	3,316
Jul 2, 2026 13:15	Victor Mercklé	CPPg++13.3.0	Success	3,774
Jul 2, 2026 03:37	Genos0	CPPg++13.3.0	Success	201,743
Jul 2, 2026 03:31	Genos0	CPPg++13.3.0	Success	203,350
Jul 2, 2026 03:28	Genos0	CPPg++14.2.0	Success	202,492
Jul 2, 2026 03:22	Genos0	CPPg++10.5.0	Success	192,445+51.96 RP
Jul 1, 2026 17:35	Victor Mercklé	CPPg++13.3.0	Success	3,300
Jul 1, 2026 17:27	Victor Mercklé	CPPg++13.3.0	Success	3,895
Jun 30, 2026 15:13	Victor Mercklé	CPPg++13.3.0	Success	3,736
Jun 30, 2026 14:56	Victor Mercklé	CPPg++13.3.0	Success	4,104
Jun 29, 2026 10:22	Du Bin	CPPg++10.5.0	Success	277,254
Jun 28, 2026 22:33	Victor Mercklé	CPPg++13.3.0	Success	3,308
Jun 28, 2026 22:18	Victor Mercklé	CPPg++13.3.0	Success	5,706
Jun 28, 2026 16:23	Victor Mercklé	CPPg++13.3.0	Success	3,289+1.85 RP
Jun 28, 2026 16:18	Victor Mercklé	CPPg++13.3.0	Success	3,291+6.45 RP
Jun 28, 2026 16:10	Victor Mercklé	CPPg++13.3.0	Success	4,182
Jun 28, 2026 16:04	Du Bin	CPPg++10.5.0	Success	192,606+56.92 RP

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