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
May 18, 2026 01:44	M-Rochat	CPPclang++20.1.2	Success	28,485
May 18, 2026 01:44	M-Rochat	CPPclang++20.1.2	Success	27,672
May 17, 2026 23:57	M-Rochat	CPPclang++20.1.2	Success	27,573
May 17, 2026 14:07	flavio87	CPPg++14.2.0	Success	55,814+95.18 RP
May 17, 2026 08:08	M-Rochat	CPPclang++18.1.3	Success	18,908
May 17, 2026 08:07	M-Rochat	CPPclang++20.1.2	Success	18,898
May 17, 2026 07:04	M-Rochat	CPPg++14.2.0	Error
May 17, 2026 04:52	M-Rochat	CPPclang++18.1.3	Success	21,719
May 17, 2026 04:52	M-Rochat	CPPclang++20.1.2	Success	20,956
May 17, 2026 03:52	M-Rochat	CPPclang++20.1.2	Success	22,913
May 17, 2026 03:52	M-Rochat	CPPg++13.3.0	Success	23,561
May 17, 2026 03:25	M-Rochat	CPPclang++20.1.2	Success	18,709
May 17, 2026 03:24	M-Rochat	CPPg++13.3.0	Success	19,368
May 17, 2026 03:23	M-Rochat	CPPclang++20.1.2	Success	18,572+7.66 RP
May 17, 2026 03:23	M-Rochat	CPPclang++17.0.6	Success	19,173
May 17, 2026 03:22	M-Rochat	CPPclang++18.1.3	Success	18,840+5.49 RP
May 17, 2026 03:08	Brandon Tang	RUSTrust-1.95.0	Success	86,984+114.96 RP
May 17, 2026 02:10	M-Rochat	CPPclang++18.1.3	Success	19,037+11.68 RP
May 17, 2026 02:10	M-Rochat	CPPg++13.3.0	Error
May 17, 2026 02:06	M-Rochat	CPPg++13.3.0	Success	22,624
May 17, 2026 02:05	M-Rochat	CPPg++13.3.0	Success	19,470+7.36 RP
May 17, 2026 01:27	olliecrow	GOgo1.26.1	Success	226,674
May 17, 2026 01:20	M-Rochat	CPPclang++18.1.3	Success	22,203
May 17, 2026 01:20	M-Rochat	CPPclang++18.1.3	Success	19,774
May 17, 2026 01:20	M-Rochat	CPPg++13.3.0	Success	21,750
May 17, 2026 01:18	M-Rochat	CPPg++13.3.0	Error
May 17, 2026 01:14	M-Rochat	CPPg++13.3.0	Success	19,998
May 17, 2026 00:49	M-Rochat	CPPg++13.3.0	Error
May 17, 2026 00:16	M-Rochat	CPPg++13.3.0	Success	23,896
May 17, 2026 00:16	M-Rochat	CPPg++13.3.0	Success	22,423
May 17, 2026 00:12	M-Rochat	CPPg++13.3.0	Success	19,753+35.66 RP
May 16, 2026 22:25	M-Rochat	CPPg++13.3.0	Success	21,250+0.97 RP
May 16, 2026 21:54	flavio87	CPPg++13.3.0	Success	119,064+2.85 RP
May 16, 2026 21:46	flavio87	CPPg++14.2.0	Success	123,242+31.62 RP
May 16, 2026 19:52	M-Rochat	CPPg++13.3.0	Success	23,291
May 16, 2026 18:12	M-Rochat	CPPg++13.3.0	Error
May 16, 2026 18:11	olliecrow	RUSTrust-1.95.0	Success	14,086
May 16, 2026 08:51	M-Rochat	CPPg++13.3.0	Success	26,978
May 16, 2026 08:50	M-Rochat	CPPg++13.3.0	Success	23,830
May 16, 2026 08:47	M-Rochat	CPPg++13.3.0	Success	23,225
May 16, 2026 08:46	M-Rochat	CPPg++13.3.0	Success	21,294+110.63 RP
May 16, 2026 08:44	M-Rochat	CPPg++13.3.0	Success	28,063
May 16, 2026 08:36	M-Rochat	CPPg++13.3.0	Success	28,104
May 16, 2026 08:36	M-Rochat	CPPg++13.3.0	Success	27,856+12.08 RP
May 16, 2026 08:35	M-Rochat	CPPg++13.3.0	Success	28,987
May 16, 2026 08:34	M-Rochat	CPPg++13.3.0	Success	28,843
May 16, 2026 08:33	M-Rochat	CPPg++13.3.0	Success	28,826+2.01 RP
May 16, 2026 08:30	M-Rochat	CPPg++13.3.0	Success	28,994+147.89 RP
May 16, 2026 08:29	M-Rochat	CPPclang++18.1.3	Success	53,463
May 16, 2026 08:26	M-Rochat	CPPg++13.3.0	Success	56,536
May 16, 2026 08:23	M-Rochat	CPPg++13.3.0	Success	50,760+87.63 RP
May 16, 2026 08:22	M-Rochat	CPPg++13.3.0	Error
May 16, 2026 08:21	M-Rochat	CPPg++13.3.0	Error
May 16, 2026 08:19	M-Rochat	CPPclang++18.1.3	Error
May 16, 2026 08:17	M-Rochat	CPPg++13.3.0	Success	100,719
May 16, 2026 06:30	M-Rochat	CPPg++13.3.0	Success	91,427+2.19 RP
May 16, 2026 06:27	M-Rochat	CPPg++13.3.0	Success	93,299+3.70 RP
May 16, 2026 06:25	M-Rochat	CPPg++13.3.0	Success	97,034+60.41 RP
May 16, 2026 06:25	M-Rochat	CPPg++14.2.0	Success	96,633+0.43 RP
May 16, 2026 00:22	olliecrow	RUSTrust-1.95.0	Success	13,714
May 15, 2026 20:25	M-Rochat	CPPg++13.3.0	Success	234,471+42.65 RP
May 15, 2026 08:47	Cadovvl	CPPg++10.5.0	Success	194,075
May 15, 2026 00:53	zielaj	CPPclang++20.1.2	Success	3,027
May 15, 2026 00:51	zielaj	CPPclang++18.1.3	Success	3,121
May 15, 2026 00:02	Josu San Martin	CPPg++14.2.0	Success	4,702
May 15, 2026 00:00	Josu San Martin	CPPg++14.2.0	Success	3,448
May 14, 2026 23:56	Josu San Martin	CPPg++14.2.0	Success	4,334
May 14, 2026 23:52	Josu San Martin	CPPg++14.2.0	Success	3,567
May 14, 2026 23:49	Josu San Martin	CPPg++14.2.0	Success	4,179
May 14, 2026 23:49	Josu San Martin	CPPg++11.5.0	Success	3,491
May 14, 2026 23:47	Josu San Martin	CPPg++14.2.0	Error
May 14, 2026 23:44	Josu San Martin	CPPg++14.2.0	Success	3,465
May 14, 2026 23:39	flavio87	CPPg++14.2.0	Success	201,916+49.53 RP
May 14, 2026 23:19	Josu San Martin	CPPg++13.3.0	Success	3,445
May 14, 2026 23:18	Josu San Martin	CPPclang++20.1.2	Success	3,675
May 14, 2026 23:16	Josu San Martin	CPPg++14.2.0	Success	3,450
May 14, 2026 23:13	Josu San Martin	CPPg++14.2.0	Success	3,445
May 14, 2026 23:12	Josu San Martin	CPPg++14.2.0	Success	3,507
May 14, 2026 23:10	Josu San Martin	CPPg++14.2.0	Success	3,440
May 14, 2026 23:07	Josu San Martin	CPPg++14.2.0	Success	4,301
May 14, 2026 23:02	Josu San Martin	CPPg++14.2.0	Success	4,306
May 14, 2026 23:01	Josu San Martin	CPPg++14.2.0	Success	4,296
May 14, 2026 22:59	Josu San Martin	CPPg++14.2.0	Success	4,378
May 14, 2026 09:36	Josu San Martin	CPPg++14.2.0	Success	3,355
May 14, 2026 03:45	Josu San Martin	CPPg++13.3.0	Success	3,341
May 14, 2026 03:44	Josu San Martin	CPPg++14.2.0	Success	3,394
May 14, 2026 01:13	Josu San Martin	CPPg++13.3.0	Success	3,373
May 14, 2026 01:12	Josu San Martin	CPPg++14.2.0	Success	3,383
May 13, 2026 21:35	Josu San Martin	CPPg++14.2.0	Success	3,341
May 13, 2026 21:19	Josu San Martin	CPPg++14.2.0	Success	3,321
May 13, 2026 21:14	Josu San Martin	CPPg++14.2.0	Success	3,323
May 13, 2026 20:52	Josu San Martin	CPPg++14.2.0	Success	3,415
May 13, 2026 20:12	Josu San Martin	CPPg++14.2.0	Error
May 13, 2026 20:04	Josu San Martin	CPPg++14.2.0	Success	3,374
May 13, 2026 19:41	Josu San Martin	CPPg++14.2.0	Success	3,321+16.23 RP
May 13, 2026 19:41	Pavel Skripkin	RUSTrust-1.95.0	Success	11,774
May 13, 2026 19:39	Pavel Skripkin	RUSTrust-1.95.0	Success	15,738
May 13, 2026 19:35	Pavel Skripkin	RUSTrust-1.95.0	Success	16,589
May 13, 2026 19:31	Pavel Skripkin	RUSTrust-1.95.0	Success	16,970
May 13, 2026 19:30	Pavel Skripkin	RUSTrust-1.95.0	Error

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