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.

Date	Author	Language	Status	Score
Jan 12, 2026 02:22	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 02:21	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 02:19	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 02:00	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 01:45	Josu San Martin	CPPg++13.3.0	Success	4,518
Jan 12, 2026 00:54	Josu San Martin	CPPg++13.3.0	Success	4,507
Jan 12, 2026 00:44	Josu San Martin	CPPg++13.3.0	Success	7,447
Jan 12, 2026 00:44	Josu San Martin	CPPg++13.3.0	Success	4,390
Jan 12, 2026 00:43	Josu San Martin	CPPg++13.3.0	Success	4,392
Jan 12, 2026 00:30	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 00:30	Josu San Martin	CPPg++13.3.0	Success	4,526
Jan 12, 2026 00:29	Josu San Martin	CPPg++13.3.0	Success	4,447
Jan 11, 2026 20:36	Pavel Skripkin	RUSTrust-1.92.0	Success	57,174
Jan 11, 2026 20:06	Josu San Martin	CPPg++13.3.0	Success	5,415
Jan 11, 2026 20:05	Josu San Martin	CPPg++13.3.0	Success	5,330
Jan 11, 2026 16:15	Josu San Martin	CPPg++13.3.0	Error
Jan 11, 2026 16:10	Josu San Martin	CPPg++13.3.0	Success	5,758
Jan 11, 2026 15:22	Josu San Martin	CPPg++13.3.0	Error
Jan 11, 2026 15:17	Josu San Martin	CPPg++13.3.0	Success	7,301
Jan 11, 2026 15:11	Josu San Martin	CPPg++13.3.0	Success	4,658
Jan 11, 2026 15:10	Josu San Martin	RUSTrust-1.92.0	Error
Jan 11, 2026 15:03	Josu San Martin	CPPg++13.3.0	Success	4,848
Jan 11, 2026 15:02	Josu San Martin	CPPg++13.3.0	Success	4,610
Jan 11, 2026 14:39	Josu San Martin	CPPg++13.3.0	Success	7,804
Jan 11, 2026 14:22	Pavel Skripkin	RUSTrust-1.92.0	Success	52,184+20.96 RP
Jan 11, 2026 14:21	Pavel Skripkin	RUSTrust-1.92.0	Success	58,989
Jan 11, 2026 14:20	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 13:56	Utsah	CPPg++13.3.0	Success	490,749+20.38 RP
Jan 11, 2026 08:12	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 08:05	Pavel Skripkin	RUSTrust-1.92.0	Success	58,594+2.35 RP
Jan 11, 2026 03:43	Josu San Martin	CPPg++13.3.0	Success	6,065
Jan 11, 2026 03:37	Josu San Martin	RUSTrust-1.92.0	Success	4,781+315.41 RP
Jan 11, 2026 03:23	Josu San Martin	CPPg++13.3.0	Success	4,384
Jan 11, 2026 03:21	Josu San Martin	CPPg++13.3.0	Success	4,384
Jan 11, 2026 03:20	Josu San Martin	CPPg++13.3.0	Success	4,386
Jan 11, 2026 03:18	Josu San Martin	CPPg++13.3.0	Success	4,852
Jan 11, 2026 03:18	Josu San Martin	CPPg++13.3.0	Success	4,542
Jan 11, 2026 03:16	Josu San Martin	CPPg++13.3.0	Success	4,542
Jan 11, 2026 03:16	Josu San Martin	CPPg++13.3.0	Success	4,384
Jan 11, 2026 03:15	Josu San Martin	CPPg++13.3.0	Success	5,324
Jan 11, 2026 03:14	Josu San Martin	CPPg++13.3.0	Success	5,325
Jan 11, 2026 03:10	Josu San Martin	CPPg++13.3.0	Success	4,946
Jan 11, 2026 01:45	Josu San Martin	CPPg++13.3.0	Success	4,702
Jan 11, 2026 01:44	Josu San Martin	CPPg++13.3.0	Success	4,726
Jan 11, 2026 01:33	zielaj	CPPclang++18.1.3	Success	3,025+86.28 RP
Jan 11, 2026 01:31	zielaj	CPPclang++18.1.3	Success	3,088
Jan 11, 2026 01:28	zielaj	CPPclang++18.1.3	Success	3,065+42.30 RP
Jan 11, 2026 01:27	zielaj	CPPclang++18.1.3	Success	3,129
Jan 11, 2026 01:26	zielaj	CPPclang++18.1.3	Success	3,126
Jan 11, 2026 01:15	zielaj	CPPclang++18.1.3	Success	3,085+47.98 RP
Jan 11, 2026 00:58	Josu San Martin	CPPg++13.3.0	Error
Jan 11, 2026 00:10	zielaj	CPPclang++18.1.3	Success	3,110
Jan 11, 2026 00:09	zielaj	CPPclang++18.1.3	Success	3,115
Jan 11, 2026 00:08	zielaj	CPPclang++18.1.3	Success	3,159
Jan 10, 2026 23:53	Josu San Martin	CPPg++13.3.0	Success	4,506
Jan 10, 2026 23:46	zielaj	CPPclang++18.1.3	Success	3,108+12.40 RP
Jan 10, 2026 23:40	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 23:36	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 23:33	zielaj	CPPclang++18.1.3	Success	3,168
Jan 10, 2026 22:52	Josu San Martin	CPPg++13.3.0	Success	4,384+12.42 RP
Jan 10, 2026 22:40	Josu San Martin	CPPg++13.3.0	Success	4,625
Jan 10, 2026 22:35	Josu San Martin	CPPg++13.3.0	Success	4,476
Jan 10, 2026 22:33	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 22:24	Josu San Martin	CPPg++13.3.0	Success	5,834
Jan 10, 2026 22:07	zielaj	CPPclang++18.1.3	Success	3,137
Jan 10, 2026 22:02	zielaj	CPPclang++18.1.3	Success	3,150
Jan 10, 2026 21:58	Josu San Martin	CPPg++13.3.0	Success	4,674
Jan 10, 2026 21:58	Josu San Martin	CPPg++13.3.0	Success	4,780
Jan 10, 2026 21:51	zielaj	CPPclang++18.1.3	Success	3,169
Jan 10, 2026 21:50	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:47	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:39	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:37	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:36	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:21	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:19	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:07	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:03	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 21:01	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 20:49	zielaj	CPPclang++18.1.3	Success	3,150
Jan 10, 2026 20:47	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 20:08	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 20:05	zielaj	CPPclang++18.1.3	Success	3,128
Jan 10, 2026 20:03	zielaj	CPPclang++18.1.3	Success	3,289
Jan 10, 2026 19:03	Josu San Martin	CPPg++13.3.0	Success	4,408+35.96 RP
Jan 10, 2026 19:02	Josu San Martin	CPPg++13.3.0	Success	4,649
Jan 10, 2026 19:02	Josu San Martin	CPPg++13.3.0	Success	4,671
Jan 10, 2026 18:44	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 18:41	zielaj	CPPclang++18.1.3	Success	3,285
Jan 10, 2026 18:24	Pavel Skripkin	RUSTrust-1.92.0	Success	59,579
Jan 10, 2026 18:22	Pavel Skripkin	RUSTrust-1.92.0	Success	60,775
Jan 10, 2026 18:20	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 18:01	Josu San Martin	CPPg++13.3.0	Success	4,663
Jan 10, 2026 17:57	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 17:57	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 17:56	Pavel Skripkin	RUSTrust-1.92.0	Success	60,299
Jan 10, 2026 17:52	Pavel Skripkin	RUSTrust-1.92.0	Success	59,412+3.75 RP
Jan 10, 2026 17:47	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 17:33	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:32	Josu San Martin	CPPg++13.3.0	Error

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