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 21, 2026 16:08	olliecrow	CPPg++13.3.0	Success	13,967+17.45 RP
Mar 21, 2026 16:06	Dominique Garmier	RUSTrust-1.94.0	Success	25,965
Mar 21, 2026 16:03	olliecrow	CPPg++13.3.0	Success	14,442
Mar 21, 2026 15:57	Dominique Garmier	RUSTrust-1.94.0	Success	26,617
Mar 21, 2026 15:28	Dominique Garmier	RUSTrust-1.94.0	Success	64,961
Mar 21, 2026 15:05	Dominique Garmier	RUSTrust-1.94.0	Success	26,877
Mar 21, 2026 15:03	Dominique Garmier	RUSTrust-1.94.0	Success	26,640
Mar 21, 2026 15:02	Dominique Garmier	RUSTrust-1.94.0	Success	26,401
Mar 21, 2026 15:01	Dominique Garmier	RUSTrust-1.94.0	Success	26,323
Mar 21, 2026 15:00	Dominique Garmier	RUSTrust-1.94.0	Success	110,739
Mar 21, 2026 14:59	Dominique Garmier	RUSTrust-1.94.0	Success	60,151
Mar 21, 2026 14:58	Dominique Garmier	RUSTrust-1.94.0	Success	73,087
Mar 21, 2026 14:57	Dominique Garmier	RUSTrust-1.94.0	Success	78,548
Mar 21, 2026 14:55	Dominique Garmier	RUSTrust-1.94.0	Success	65,861
Mar 21, 2026 10:32	Dominique Garmier	CSHARP9.0.14	Success	340,407
Mar 21, 2026 09:28	Dominique Garmier	ZIG0.13.0	Success	415,300
Mar 21, 2026 08:34	olliecrow	GOgo1.26.1	Success	96,388
Mar 21, 2026 08:11	olliecrow	CSHARP9.0.14	Success	95,260
Mar 21, 2026 07:59	olliecrow	RUSTrust-1.94.0	Error
Mar 21, 2026 07:41	olliecrow	CPPg++13.3.0	Error
Mar 21, 2026 03:53	Yuriy Lyfenko	CPPclang++18.1.3	Success	4,815+42.67 RP
Mar 21, 2026 03:51	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,268
Mar 21, 2026 03:41	Yuriy Lyfenko	CPPclang++18.1.3	Success	4,916+41.75 RP
Mar 21, 2026 03:32	Yuriy Lyfenko	CPPg++13.3.0	Success	5,019+632.44 RP
Mar 21, 2026 03:26	Yuriy Lyfenko	CPPg++13.3.0	Success	7,371
Mar 21, 2026 03:18	Yuriy Lyfenko	CPPg++13.3.0	Success	7,370
Mar 21, 2026 03:14	Yuriy Lyfenko	CPPclang++18.1.3	Success	7,460
Mar 21, 2026 03:10	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 21, 2026 03:10	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 21, 2026 03:06	Yuriy Lyfenko	CPPg++13.3.0	Success	7,425
Mar 21, 2026 03:01	Yuriy Lyfenko	CPPg++13.3.0	Success	7,353+22.73 RP
Mar 21, 2026 03:01	Yuriy Lyfenko	CPPclang++18.1.3	Success	7,478+157.59 RP
Mar 21, 2026 02:43	Yuriy Lyfenko	CPPclang++18.1.3	Success	16,879
Mar 21, 2026 02:42	Dominique Garmier	RUSTrust-1.94.0	Success	139,818
Mar 21, 2026 02:14	Dominique Garmier	CPPg++13.3.0	Success	16,751
Mar 20, 2026 20:42	Dominique Garmier	GOgo1.26.1	Success	253,664
Mar 20, 2026 12:44	Dominique Garmier	CPPg++13.3.0	Success	24,128
Mar 20, 2026 03:15	Dominique Garmier	CPPg++13.3.0	Success	16,893
Mar 20, 2026 00:24	olliecrow	RUSTrust-1.94.0	Success	16,264
Mar 19, 2026 23:54	olliecrow	RUSTrust-1.94.0	Success	14,594
Mar 19, 2026 23:29	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 22:31	olliecrow	CPPg++13.3.0	Success	14,328
Mar 19, 2026 22:10	Dominique Garmier	CPPg++13.3.0	Success	24,733
Mar 19, 2026 21:17	Yuriy Lyfenko	CPPclang++18.1.3	Success	8,667
Mar 19, 2026 21:15	Yuriy Lyfenko	CPPclang++18.1.3	Success	9,903
Mar 19, 2026 21:13	Yuriy Lyfenko	CPPclang++18.1.3	Error
Mar 19, 2026 21:01	Yuriy Lyfenko	CPPclang++18.1.3	Success	8,644
Mar 19, 2026 20:34	Dominique Garmier	CPPg++13.3.0	Success	22,551
Mar 19, 2026 19:35	Dominique Garmier	CPPg++13.3.0	Success	17,317
Mar 19, 2026 19:29	Dominique Garmier	CPPg++13.3.0	Success	20,170
Mar 19, 2026 19:28	Dominique Garmier	CPPg++13.3.0	Success	20,164
Mar 19, 2026 19:21	Dominique Garmier	CPPg++13.3.0	Success	25,417
Mar 19, 2026 19:21	Dominique Garmier	CPPg++13.3.0	Success	25,312
Mar 19, 2026 17:01	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 16:41	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 16:36	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 16:22	Dominique Garmier	CPPg++13.3.0	Success	16,725+1.43 RP
Mar 19, 2026 16:16	Dominique Garmier	CPPg++13.3.0	Error
Mar 19, 2026 15:34	Dominique Garmier	CPPg++13.3.0	Success	38,992
Mar 19, 2026 15:34	Dominique Garmier	CPPg++13.3.0	Success	31,806
Mar 19, 2026 15:34	Yuriy Lyfenko	CPPclang++18.1.3	Success	14,337
Mar 19, 2026 15:33	Yuriy Lyfenko	CPPclang++18.1.3	Success	14,225
Mar 19, 2026 15:32	Yuriy Lyfenko	CPPclang++18.1.3	Success	11,445
Mar 19, 2026 15:31	Dominique Garmier	CPPg++13.3.0	Success	17,572
Mar 19, 2026 15:31	Dominique Garmier	CPPclang++18.1.3	Success	18,544
Mar 19, 2026 15:31	Yuriy Lyfenko	CPPclang++18.1.3	Success	11,447
Mar 19, 2026 15:30	Yuriy Lyfenko	CPPclang++18.1.3	Error
Mar 19, 2026 15:27	Yuriy Lyfenko	CPPclang++18.1.3	Error
Mar 19, 2026 15:00	Dominique Garmier	CPPg++13.3.0	Error
Mar 19, 2026 14:32	Dominique Garmier	CPPg++13.3.0	Success	31,752
Mar 19, 2026 14:14	Dominique Garmier	CPPg++13.3.0	Success	23,428
Mar 19, 2026 14:13	Dominique Garmier	CPPg++13.3.0	Success	23,479
Mar 19, 2026 14:13	Dominique Garmier	CPPg++13.3.0	Success	21,143
Mar 19, 2026 14:12	Dominique Garmier	CPPclang++18.1.3	Success	23,921
Mar 19, 2026 14:11	Dominique Garmier	CPPg++13.3.0	Success	23,504
Mar 19, 2026 14:08	Dominique Garmier	CPPg++13.3.0	Success	24,330
Mar 19, 2026 14:08	Dominique Garmier	CPPg++13.3.0	Success	23,825
Mar 19, 2026 13:25	Dominique Garmier	CPPg++13.3.0	Error
Mar 19, 2026 13:06	Dominique Garmier	CPPg++13.3.0	Success	18,213
Mar 19, 2026 13:06	Dominique Garmier	CPPg++13.3.0	Success	18,187
Mar 19, 2026 11:44	Dominique Garmier	CPPg++13.3.0	Success	24,422
Mar 19, 2026 11:43	Dominique Garmier	CPPclang++18.1.3	Success	27,240
Mar 19, 2026 11:43	Dominique Garmier	CPPg++13.3.0	Success	25,468
Mar 19, 2026 10:55	Dominique Garmier	CPPg++13.3.0	Success	22,232
Mar 19, 2026 09:17	Dominique Garmier	CPPg++13.3.0	Success	24,448
Mar 19, 2026 09:15	Dominique Garmier	CPPg++13.3.0	Success	23,831
Mar 19, 2026 08:38	Dominique Garmier	CPPclang++18.1.3	Success	18,538
Mar 19, 2026 08:37	Dominique Garmier	CPPg++13.3.0	Success	60,092
Mar 19, 2026 08:31	Dominique Garmier	CPPg++13.3.0	Error
Mar 19, 2026 08:29	Dominique Garmier	CPPg++13.3.0	Error
Mar 19, 2026 01:21	Dominique Garmier	CPPg++13.3.0	Success	17,008
Mar 19, 2026 01:07	Dominique Garmier	CPPg++13.3.0	Success	23,530
Mar 19, 2026 00:54	Dominique Garmier	CPPg++13.3.0	Success	20,170
Mar 19, 2026 00:35	Dominique Garmier	CPPg++13.3.0	Success	21,146
Mar 19, 2026 00:15	Josu San Martin	CPPg++13.3.0	Success	5,230
Mar 19, 2026 00:02	Dominique Garmier	CPPg++13.3.0	Success	16,765+4.76 RP
Mar 18, 2026 23:57	Dominique Garmier	CPPg++13.3.0	Success	27,071
Mar 18, 2026 23:53	Dominique Garmier	CPPg++13.3.0	Success	17,458
Mar 18, 2026 23:28	Dominique Garmier	CPPg++13.3.0	Success	16,921
Mar 18, 2026 23:27	Dominique Garmier	CPPg++13.3.0	Success	16,900+1.33 RP

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