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
Mar 16, 2026 23:10	Dominique Garmier	CPPg++13.3.0	Success	34,964
Mar 16, 2026 23:04	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 23:01	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 22:56	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 22:51	Dominique Garmier	CPPg++13.3.0	Success	36,139
Mar 16, 2026 22:49	Dominique Garmier	CPPg++13.3.0	Success	28,206+9.50 RP
Mar 16, 2026 22:48	Dominique Garmier	CPPg++13.3.0	Success	94,943
Mar 16, 2026 22:43	Dominique Garmier	CPPg++13.3.0	Success	28,983+14.41 RP
Mar 16, 2026 22:41	Dominique Garmier	CPPg++13.3.0	Success	31,687
Mar 16, 2026 22:41	Dominique Garmier	CPPg++13.3.0	Success	126,970
Mar 16, 2026 22:36	Dominique Garmier	CPPg++13.3.0	Success	83,375
Mar 16, 2026 17:42	Dominique Garmier	CPPg++13.3.0	Success	34,328
Mar 16, 2026 16:13	Dominique Garmier	CPPg++13.3.0	Success	30,940
Mar 16, 2026 15:22	Dominique Garmier	CPPg++13.3.0	Success	58,242
Mar 16, 2026 15:02	Dominique Garmier	CPPg++13.3.0	Success	71,309
Mar 16, 2026 11:49	Dominique Garmier	CPPg++13.3.0	Success	34,347
Mar 16, 2026 11:25	Dominique Garmier	CPPg++13.3.0	Success	39,492
Mar 16, 2026 11:23	Dominique Garmier	CPPg++13.3.0	Success	39,107
Mar 15, 2026 23:39	Dominique Garmier	CPPg++13.3.0	Success	40,266
Mar 15, 2026 23:35	Dominique Garmier	CPPg++13.3.0	Success	30,246+1.05 RP
Mar 15, 2026 23:15	Dominique Garmier	CPPg++13.3.0	Success	56,845
Mar 15, 2026 22:38	Dominique Garmier	CPPg++13.3.0	Success	59,786
Mar 15, 2026 22:37	Dominique Garmier	CPPg++13.3.0	Success	44,330
Mar 15, 2026 22:12	Dominique Garmier	CPPg++13.3.0	Success	31,617
Mar 15, 2026 22:12	Dominique Garmier	CPPg++13.3.0	Success	30,342+19.51 RP
Mar 15, 2026 21:56	Dominique Garmier	CPPclang++18.1.3	Success	133,201
Mar 15, 2026 17:07	Dominique Garmier	CPPclang++18.1.3	Success	32,251+1.76 RP
Mar 15, 2026 17:00	Dominique Garmier	CPPclang++18.1.3	Success	32,519
Mar 15, 2026 16:44	Dominique Garmier	CPPclang++18.1.3	Success	32,435+2.06 RP
Mar 15, 2026 16:08	Dominique Garmier	CPPg++13.3.0	Success	32,653+5.48 RP
Mar 15, 2026 13:23	Sneed	CPPclang++18.1.3	Success	30,493+209.74 RP
Mar 15, 2026 13:19	Sneed	CPPclang++18.1.3	Success	546,291
Mar 15, 2026 13:12	Sneed	CPPg++13.3.0	Success	99,425
Mar 15, 2026 13:07	Sneed	CPPg++13.3.0	Error
Mar 15, 2026 13:01	Sneed	CPPg++13.3.0	Success	117,118
Mar 15, 2026 13:00	Dominique Garmier	CPPg++13.3.0	Success	34,838
Mar 15, 2026 13:00	Dominique Garmier	CPPclang++18.1.3	Success	35,824
Mar 15, 2026 12:47	Dominique Garmier	CPPg++13.3.0	Error
Mar 15, 2026 12:42	Dominique Garmier	CPPclang++18.1.3	Success	33,248+11.77 RP
Mar 15, 2026 11:42	Dominique Garmier	CPPclang++18.1.3	Success	38,973
Mar 15, 2026 11:41	Dominique Garmier	CPPg++13.3.0	Success	37,538
Mar 15, 2026 11:31	Dominique Garmier	CPPg++13.3.0	Success	34,602+176.10 RP
Mar 15, 2026 07:22	tqbfjotld-0	CPPg++13.3.0	Success	63,814
Mar 15, 2026 07:21	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:20	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:18	tqbfjotld-0	CPPg++13.3.0	Success	68,781
Mar 15, 2026 07:18	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:17	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:16	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:16	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:14	tqbfjotld-0	CPPg++13.3.0	Success	70,504
Mar 15, 2026 07:14	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:12	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:12	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:11	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:03	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:02	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:02	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 07:01	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:58	tqbfjotld-0	CPPg++13.3.0	Success	63,692+157.01 RP
Mar 15, 2026 06:56	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:55	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:54	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:53	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:49	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:47	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:42	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:33	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 03:20	limanjun99	CPPg++13.3.0	Success	13,725+27.14 RP
Mar 15, 2026 03:19	limanjun99	CPPg++13.3.0	Success	14,579
Mar 15, 2026 03:13	limanjun99	CPPg++13.3.0	Success	14,256+8.12 RP
Mar 15, 2026 03:12	limanjun99	CPPg++13.3.0	Success	15,111
Mar 15, 2026 03:07	limanjun99	CPPg++13.3.0	Error
Mar 15, 2026 03:07	limanjun99	CPPg++13.3.0	Success	14,423+119.51 RP
Mar 15, 2026 01:14	limanjun99	CPPg++13.3.0	Error
Mar 15, 2026 01:08	limanjun99	CPPg++13.3.0	Success	17,427+76.24 RP
Mar 14, 2026 20:15	Elijah Kin	CPPg++13.3.0	Success	493,047
Mar 14, 2026 20:05	Elijah Kin	CPPg++13.3.0	Error
Mar 14, 2026 19:56	Elijah Kin	CPPg++13.3.0	Error
Mar 14, 2026 19:17	Dominique Garmier	CPPg++13.3.0	Success	88,572+15.84 RP
Mar 14, 2026 17:23	Dominique Garmier	CPPg++13.3.0	Success	103,024+1.05 RP
Mar 14, 2026 16:20	Dominique Garmier	CPPclang++18.1.3	Success	104,319
Mar 14, 2026 16:16	limanjun99	CPPg++13.3.0	Success	20,097+78.30 RP
Mar 14, 2026 16:12	Dominique Garmier	CPPclang++18.1.3	Success	112,304
Mar 14, 2026 16:11	Dominique Garmier	CPPg++13.3.0	Success	113,108
Mar 14, 2026 15:33	limanjun99	CPPg++13.3.0	Success	23,850+10.84 RP
Mar 14, 2026 15:32	limanjun99	CPPg++13.3.0	Success	24,483+4.94 RP
Mar 14, 2026 15:25	limanjun99	CPPg++13.3.0	Success	32,379
Mar 14, 2026 15:23	limanjun99	CPPg++13.3.0	Error
Mar 14, 2026 15:01	limanjun99	CPPg++13.3.0	Success	26,102
Mar 14, 2026 14:50	limanjun99	CPPg++13.3.0	Success	24,783+15.06 RP
Mar 14, 2026 14:43	limanjun99	CPPg++13.3.0	Success	29,293
Mar 14, 2026 14:36	limanjun99	CPPg++13.3.0	Success	25,744+51.59 RP
Mar 14, 2026 14:34	limanjun99	CPPg++13.3.0	Success	39,990
Mar 14, 2026 14:31	limanjun99	CPPg++13.3.0	Success	29,687+37.37 RP
Mar 14, 2026 13:58	limanjun99	CPPg++13.3.0	Success	33,391+37.37 RP
Mar 14, 2026 09:54	limanjun99	CPPg++13.3.0	Error
Mar 14, 2026 09:52	limanjun99	CPPg++13.3.0	Error
Mar 14, 2026 09:44	limanjun99	CPPg++13.3.0	Success	38,151+15.83 RP
Mar 14, 2026 09:40	limanjun99	CPPg++13.3.0	Success	47,824

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