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
Oct 17, 2026 20:29	izotoff	GOgo1.26.2	Success	44,183
Oct 17, 2026 20:25	e1011	CPPclang++17.0.6	Success	68,535
Oct 17, 2026 20:07	izotoff	GOgo1.26.2	Success	45,626
Oct 17, 2026 19:53	izotoff	GOgo1.26.2	Success	58,861
Oct 17, 2026 19:40	izotoff	GOgo1.26.2	Success	49,769+5.00 RP
Oct 17, 2026 09:53	Kacpxer	CPPclang++20.1.2	Success	19,612+5.00 RP
Oct 17, 2026 07:16	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 07:14	e1011	CPPclang++17.0.6	Success	66,204+4.34 RP
Oct 17, 2026 06:34	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 06:34	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 06:30	e1011	CPPclang++17.0.6	Success	78,560
Oct 17, 2026 06:30	e1011	CPPclang++17.0.6	Success	79,047
Oct 17, 2026 06:25	e1011	CPPclang++17.0.6	Success	78,664
Oct 17, 2026 06:19	e1011	CPPclang++17.0.6	Success	81,865
Oct 17, 2026 06:18	e1011	CPPclang++17.0.6	Success	68,868
Oct 17, 2026 06:16	e1011	CPPclang++17.0.6	Success	68,162+83.00 RP
Oct 17, 2026 06:13	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 06:09	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 05:02	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 05:01	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:43	e1011	CPPg++10.5.0	Success	253,046
Oct 17, 2026 04:36	e1011	CPPg++10.5.0	Error
Oct 17, 2026 04:31	e1011	CPPg++10.5.0	Success	183,508
Oct 17, 2026 04:21	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:21	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:21	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:20	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:19	e1011	CPPg++10.5.0	Error
Oct 17, 2026 04:16	e1011	CPPclang++17.0.6	Success	156,971+15.92 RP
Oct 17, 2026 04:15	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:12	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 04:07	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:56	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:54	e1011	CPPclang++17.0.6	Success	239,073
Oct 17, 2026 03:50	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:48	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:47	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:44	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:36	highload-churner	CPPg++13.3.0	Success	7,952+5.00 RP
Oct 17, 2026 03:23	e1011	CPPclang++17.0.6	Success	209,287+16.71 RP
Oct 17, 2026 03:18	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:12	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 03:11	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 02:50	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 02:49	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 02:47	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 02:45	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 02:40	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 01:51	e1011	CPPclang++17.0.6	Success	321,809+0.08 RP
Oct 17, 2026 01:45	e1011	CPPclang++17.0.6	Error
Oct 17, 2026 01:41	e1011	CPPg++10.5.0	Error
Oct 17, 2026 01:41	e1011	CPPg++10.5.0	Error
Oct 17, 2026 01:31	e1011	CPPg++10.5.0	Success	322,609+36.00 RP
Oct 17, 2026 01:28	e1011	CPPg++10.5.0	Error
Oct 17, 2026 01:25	e1011	CPPg++10.5.0	Error
Oct 17, 2026 01:23	e1011	CPPg++10.5.0	Error
Oct 17, 2026 00:00	zayd-ansari-code	CPPg++10.5.0	Success	192,918+56.84 RP
Oct 16, 2026 22:28	janwww	ZIG0.15.1	Success	4,261+2'297.33 RP
Oct 16, 2026 21:22	izotoff	CPPg++10.5.0	Success	172,574
Oct 16, 2026 20:55	izotoff	CPPg++10.5.0	Success	192,637
Oct 16, 2026 20:50	Kacpxer	CPPg++10.5.0	Success	14,176+246.01 RP
Oct 16, 2026 20:31	Kacpxer	GOgo1.26.2	Success	21,767+117.69 RP
Oct 16, 2026 20:24	Kacpxer	GOgo1.26.2	Success	29,264+341.72 RP
Oct 16, 2026 11:22	highload-churner	CPPg++13.3.0	Success	8,002
Oct 13, 2026 18:42	Karthik Reddy	CPPclang++18.1.3	Success	2,797
Oct 13, 2026 14:01	highload-churner	CPPg++13.3.0	Success	2,737
Oct 13, 2026 13:32	highload-churner	CPPg++13.3.0	Success	2,734
Oct 13, 2026 07:29	highload-churner	CPPg++13.3.0	Success	2,705+40.78 RP
Oct 13, 2026 06:46	highload-churner	CPPg++13.3.0	Success	2,720+122.22 RP
Oct 13, 2026 06:33	highload-churner	CPPg++13.3.0	Success	2,774+61.32 RP
Oct 13, 2026 06:00	highload-churner	CPPg++13.3.0	Success	2,822+210.25 RP
Oct 13, 2026 05:54	highload-churner	CPPg++13.3.0	Success	3,000+513.25 RP
Oct 13, 2026 04:55	highload-churner	CPPg++13.3.0	Success	3,546+86.34 RP
Oct 13, 2026 04:44	highload-churner	CPPg++13.3.0	Success	3,658+137.01 RP
Oct 13, 2026 04:35	highload-churner	CPPg++13.3.0	Success	3,851+212.37 RP
Oct 13, 2026 04:20	highload-churner	CPPg++13.3.0	Success	4,194+2.84 RP
Oct 13, 2026 04:05	highload-churner	CPPg++13.3.0	Success	4,199+458.44 RP
Oct 13, 2026 03:45	highload-churner	CPPg++13.3.0	Success	5,200+45.14 RP
Oct 13, 2026 03:40	highload-churner	CPPg++13.3.0	Success	5,325+39.36 RP
Oct 13, 2026 03:30	highload-churner	CPPg++13.3.0	Success	5,439+46.46 RP
Oct 13, 2026 03:18	highload-churner	CPPg++13.3.0	Success	5,580+152.23 RP
Oct 13, 2026 03:00	highload-churner	CPPg++13.3.0	Success	6,098+383.44 RP
Oct 12, 2026 20:32	janwww	CPPg++14.2.0	Error	+72.28 RP
Oct 12, 2026 14:57	highload-churner	CPPg++13.3.0	Success	8,059
Oct 12, 2026 14:48	highload-churner	CPPg++13.3.0	Success	7,959+5.50 RP
Oct 12, 2026 14:40	highload-churner	CPPg++13.3.0	Success	7,994+62.16 RP
Oct 12, 2026 14:33	highload-churner	CPPg++13.3.0	Success	10,430
Oct 12, 2026 06:11	highload-churner	CPPg++13.3.0	Success	8,412+2.12 RP
Oct 12, 2026 06:02	highload-churner	CPPg++13.3.0	Success	8,427+76.17 RP
Oct 12, 2026 05:44	highload-churner	CPPg++13.3.0	Success	9,005+8.57 RP
Oct 12, 2026 05:23	highload-churner	CPPg++13.3.0	Success	9,075+2.30 RP
Oct 12, 2026 05:05	highload-churner	CPPclang++18.1.3	Success	9,094+2.65 RP
Oct 12, 2026 04:36	highload-churner	CPPg++13.3.0	Success	9,333
Oct 12, 2026 04:32	highload-churner	CPPg++13.3.0	Success	9,116+10.96 RP
Oct 12, 2026 04:15	highload-churner	CPPg++13.3.0	Success	9,208+19.69 RP
Oct 12, 2026 04:05	highload-churner	CPPg++13.3.0	Success	9,378+11.25 RP
Oct 12, 2026 03:57	highload-churner	CPPg++13.3.0	Success	9,530
Oct 12, 2026 02:52	highload-churner	CPPg++13.3.0	Success	9,478+2.00 RP
Oct 12, 2026 02:47	highload-churner	CPPg++13.3.0	Success	9,532
Oct 10, 2026 00:23	highload-churner	CPPg++13.3.0	Success	9,496+2.54 RP

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