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 10, 2026 00:50	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 00:49	zielaj	CPPclang++18.1.3	Success	3,160
Jan 10, 2026 00:47	Josu San Martin	CPPg++13.3.0	Success	7,988
Jan 10, 2026 00:47	Josu San Martin	CPPg++13.3.0	Success	5,944
Jan 10, 2026 00:45	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 00:45	Josu San Martin	CPPg++13.3.0	Success	10,272
Jan 10, 2026 00:44	Josu San Martin	CPPg++13.3.0	Success	14,101
Jan 10, 2026 00:44	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 00:44	Josu San Martin	CPPg++13.3.0	Success	18,398
Jan 10, 2026 00:42	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 00:40	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 00:38	zielaj	CPPclang++18.1.3	Success	3,184
Jan 10, 2026 00:31	Josu San Martin	CPPg++13.3.0	Success	5,950
Jan 10, 2026 00:30	Josu San Martin	RUSTrust-1.92.0	Success	6,230
Jan 10, 2026 00:23	Josu San Martin	RUSTrust-1.92.0	Success	6,224
Jan 10, 2026 00:18	Josu San Martin	RUSTrust-1.92.0	Success	6,354
Jan 10, 2026 00:16	Josu San Martin	RUSTrust-1.92.0	Success	6,479
Jan 10, 2026 00:14	Josu San Martin	CPPg++13.3.0	Success	6,733
Jan 10, 2026 00:08	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 00:04	Josu San Martin	CPPg++13.3.0	Success	5,796
Jan 10, 2026 00:03	Josu San Martin	RUSTrust-1.92.0	Success	6,442
Jan 9, 2026 23:48	Josu San Martin	CPPg++13.3.0	Success	6,018
Jan 9, 2026 23:44	Josu San Martin	CPPg++13.3.0	Success	6,321
Jan 9, 2026 23:41	Josu San Martin	RUSTrust-1.92.0	Success	8,054
Jan 9, 2026 23:39	Josu San Martin	CPPg++13.3.0	Success	6,561
Jan 9, 2026 23:29	Josu San Martin	CPPg++13.3.0	Success	8,064
Jan 9, 2026 23:22	Josu San Martin	RUSTrust-1.92.0	Success	9,463
Jan 9, 2026 23:19	Josu San Martin	RUSTrust-1.92.0	Success	10,286
Jan 9, 2026 23:19	Josu San Martin	RUSTrust-1.92.0	Success	9,887
Jan 9, 2026 23:12	Josu San Martin	CPPg++13.3.0	Success	6,203
Jan 9, 2026 23:12	Josu San Martin	CPPg++13.3.0	Error
Jan 9, 2026 23:08	Josu San Martin	CPPg++13.3.0	Success	15,665
Jan 9, 2026 23:08	Josu San Martin	RUSTrust-1.92.0	Success	7,871
Jan 9, 2026 23:01	Josu San Martin	CPPg++13.3.0	Success	5,899
Jan 9, 2026 22:15	Josu San Martin	RUSTrust-1.92.0	Success	5,747+173.20 RP
Jan 9, 2026 22:09	Josu San Martin	CPPg++13.3.0	Success	10,138
Jan 9, 2026 21:18	Josu San Martin	CPPg++13.3.0	Error
Jan 9, 2026 21:12	Josu San Martin	CPPg++13.3.0	Success	6,567
Jan 9, 2026 20:39	Pavel Skripkin	RUSTrust-1.92.0	Success	87,834
Jan 9, 2026 20:38	Pavel Skripkin	RUSTrust-1.92.0	Success	86,377
Jan 9, 2026 20:36	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 20:25	Josu San Martin	RUSTrust-1.92.0	Success	7,464
Jan 9, 2026 20:02	Josu San Martin	CPPg++13.3.0	Success	6,539
Jan 9, 2026 19:53	Josu San Martin	CPPg++13.3.0	Success	6,302
Jan 9, 2026 19:52	Josu San Martin	CPPg++13.3.0	Success	6,651
Jan 9, 2026 19:36	Josu San Martin	RUSTrust-1.92.0	Success	6,048+99.01 RP
Jan 9, 2026 19:30	Josu San Martin	CPPg++13.3.0	Success	6,189+0.26 RP
Jan 9, 2026 19:14	AVG	CPPg++13.3.0	Success	34,069
Jan 9, 2026 19:14	Josu San Martin	RUSTrust-1.92.0	Success	6,281+18.54 RP
Jan 9, 2026 19:09	AVG	CPPg++13.3.0	Success	24,901+401.59 RP
Jan 9, 2026 18:40	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 18:38	Pavel Skripkin	RUSTrust-1.92.0	Success	62,244+0.09 RP
Jan 9, 2026 18:37	Pavel Skripkin	RUSTrust-1.92.0	Success	62,332
Jan 9, 2026 18:26	Josu San Martin	CPPg++13.3.0	Success	6,190+41.20 RP
Jan 9, 2026 17:26	Josu San Martin	RUSTrust-1.92.0	Success	15,952
Jan 9, 2026 17:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 17:17	Josu San Martin	RUSTrust-1.92.0	Success	6,790
Jan 9, 2026 17:16	Josu San Martin	RUSTrust-1.92.0	Success	6,824
Jan 9, 2026 17:15	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 17:15	Josu San Martin	RUSTrust-1.92.0	Success	6,834
Jan 9, 2026 17:15	Josu San Martin	RUSTrust-1.92.0	Success	6,766
Jan 9, 2026 17:14	Josu San Martin	RUSTrust-1.92.0	Success	6,781
Jan 9, 2026 17:13	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 17:13	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 16:23	Josu San Martin	RUSTrust-1.92.0	Success	6,597
Jan 9, 2026 16:03	Josu San Martin	RUSTrust-1.92.0	Success	6,733
Jan 9, 2026 15:22	Josu San Martin	CPPg++13.3.0	Success	6,352+0.74 RP
Jan 9, 2026 15:19	Pavel Skripkin	RUSTrust-1.92.0	Success	66,546
Jan 9, 2026 15:17	Pavel Skripkin	RUSTrust-1.92.0	Success	67,586
Jan 9, 2026 15:17	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:17	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:16	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:08	Josu San Martin	RUSTrust-1.92.0	Success	6,395
Jan 9, 2026 15:07	Josu San Martin	CPPg++13.3.0	Success	7,824
Jan 9, 2026 15:05	Josu San Martin	RUSTrust-1.92.0	Success	6,355+169.43 RP
Jan 9, 2026 14:57	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 14:54	Josu San Martin	CPPg++13.3.0	Success	6,640+34.35 RP
Jan 9, 2026 14:49	Josu San Martin	RUSTrust-1.92.0	Success	10,374
Jan 9, 2026 14:45	Josu San Martin	RUSTrust-1.92.0	Success	6,795+346.97 RP
Jan 9, 2026 14:42	Josu San Martin	CPPg++13.3.0	Success	6,811+18.31 RP
Jan 9, 2026 14:39	Josu San Martin	RUSTrust-1.92.0	Success	10,797
Jan 9, 2026 14:17	Josu San Martin	CPPg++13.3.0	Success	6,897+307.18 RP
Jan 9, 2026 14:10	Josu San Martin	CPPg++13.3.0	Success	12,534
Jan 9, 2026 14:06	Josu San Martin	RUSTrust-1.92.0	Success	9,973
Jan 9, 2026 08:57	Pavel Skripkin	RUSTrust-1.92.0	Success	62,277+22.23 RP
Jan 9, 2026 08:33	Pavel Skripkin	RUSTrust-1.92.0	Success	72,284+5.07 RP
Jan 9, 2026 08:31	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 08:27	Pavel Skripkin	RUSTrust-1.92.0	Success	75,034+0.61 RP
Jan 9, 2026 08:23	Pavel Skripkin	RUSTrust-1.92.0	Success	75,380+132.66 RP
Jan 9, 2026 04:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:34	Josu San Martin	RUSTrust-1.92.0	Success	8,895
Jan 9, 2026 04:33	Josu San Martin	CPPg++13.3.0	Success	8,751+14.57 RP
Jan 9, 2026 04:27	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Success	14,286
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:24	Josu San Martin	CPPg++13.3.0	Success	12,263
Jan 9, 2026 04:22	Josu San Martin	CPPg++13.3.0	Success	9,579
Jan 9, 2026 04:12	Josu San Martin	RUSTrust-1.92.0	Error

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