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
Aug 23, 2026 15:26	Victor Mercklé	CPPg++14.2.0	Success	6,706
Aug 23, 2026 15:16	Victor Mercklé	CPPg++14.2.0	Success	5,761
Aug 23, 2026 14:55	Victor Mercklé	CPPg++14.2.0	Success	4,534
Aug 23, 2026 14:44	Victor Mercklé	CPPg++14.2.0	Success	3,259
Aug 23, 2026 14:41	Victor Mercklé	CPPg++14.2.0	Error
Aug 23, 2026 14:37	Victor Mercklé	CPPg++14.2.0	Success	3,282
Aug 23, 2026 14:33	Victor Mercklé	CPPg++14.2.0	Success	3,229
Aug 23, 2026 14:24	Victor Mercklé	CPPg++14.2.0	Success	3,245
Aug 23, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Success	3,233
Aug 23, 2026 14:10	Victor Mercklé	CPPg++13.3.0	Error
Aug 23, 2026 14:06	Victor Mercklé	CPPg++13.3.0	Success	3,240
Aug 23, 2026 14:02	Victor Mercklé	CPPg++13.3.0	Success	3,224+20.07 RP
Aug 23, 2026 13:57	Victor Mercklé	CPPg++13.3.0	Success	3,401
Aug 21, 2026 15:34	Andrew Epstein	CPPg++10.5.0	Success	193,016
Aug 21, 2026 15:31	Andrew Epstein	CPPg++14.2.0	Success	195,001
Aug 17, 2026 23:31	Josu San Martin	CSHARP10.0.7	Success	3,570
Aug 17, 2026 23:27	Josu San Martin	GOgo1.26.2	Success	3,577
Aug 17, 2026 23:24	Josu San Martin	ZIG0.15.1	Success	3,528
Aug 17, 2026 23:21	Josu San Martin	RUSTrust-1.95.0	Success	3,524
Aug 17, 2026 16:37	Tomislav Tunkovic	ZIG0.15.1	Success	3,084+271.66 RP
Aug 17, 2026 13:13	Tomislav Tunkovic	CSHARP9.0.15	Success	3,244+29.18 RP
Aug 17, 2026 13:08	Tomislav Tunkovic	GOgo1.26.2	Success	3,201+88.20 RP
Aug 17, 2026 11:12	Tomislav Tunkovic	RUSTrust-1.90.0	Success	3,274+59.46 RP
Aug 17, 2026 06:56	marko1597	CPPg++14.2.0	Success	6,978+69.19 RP
Aug 17, 2026 06:51	marko1597	CPPg++14.2.0	Success	7,332+50.34 RP
Aug 17, 2026 06:34	marko1597	CPPg++14.2.0	Success	7,613+72.39 RP
Aug 17, 2026 04:31	marko1597	CPPg++14.2.0	Success	8,915
Aug 17, 2026 04:26	marko1597	CPPg++14.2.0	Success	8,794
Aug 17, 2026 04:04	marko1597	CPPg++14.2.0	Success	8,057+82.81 RP
Aug 17, 2026 01:42	marko1597	CPPg++14.2.0	Success	8,633+1'158.35 RP
Aug 16, 2026 23:13	Tomislav Tunkovic	GOgo1.26.2	Success	38,315
Aug 16, 2026 23:12	Tomislav Tunkovic	ZIG0.15.1	Success	3,600
Aug 16, 2026 23:12	Tomislav Tunkovic	RUSTrust-1.95.0	Success	3,622
Aug 15, 2026 17:38	Tomislav Tunkovic	CPPclang++17.0.6	Success	3,018
Aug 15, 2026 17:34	Tomislav Tunkovic	CPPclang++19.1.1	Success	3,060
Aug 15, 2026 17:26	Tomislav Tunkovic	CPPclang++18.1.3	Success	3,013+215.30 RP
Aug 15, 2026 17:16	Tomislav Tunkovic	CPPclang++20.1.2	Success	3,114+219.80 RP
Aug 15, 2026 17:07	Tomislav Tunkovic	CPPg++14.2.0	Success	3,299+188.70 RP
Aug 15, 2026 14:46	Tomislav Tunkovic	CPPg++14.2.0	Success	3,567
Aug 15, 2026 14:42	Tomislav Tunkovic	CPPg++12.4.0	Success	3,549
Aug 15, 2026 14:40	Tomislav Tunkovic	CPPg++14.2.0	Success	3,546
Aug 15, 2026 14:34	Tomislav Tunkovic	CPPclang++18.1.3	Success	3,702
Aug 15, 2026 14:30	Tomislav Tunkovic	CPPg++14.2.0	Success	3,518+75.51 RP
Aug 15, 2026 14:28	Tomislav Tunkovic	CPPclang++18.1.3	Success	3,614+43.71 RP
Aug 15, 2026 14:24	Tomislav Tunkovic	CPPg++13.3.0	Success	3,767
Aug 15, 2026 14:22	Tomislav Tunkovic	CPPg++14.2.0	Success	3,672+58.78 RP
Aug 15, 2026 14:00	Tomislav Tunkovic	CPPg++14.2.0	Success	3,753+178.21 RP
Aug 15, 2026 13:46	Tomislav Tunkovic	CPPg++14.2.0	Success	4,022+528.61 RP
Aug 15, 2026 13:30	Tomislav Tunkovic	CPPg++14.2.0	Success	5,108+12.94 RP
Aug 15, 2026 13:13	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 15, 2026 08:40	Tomislav Tunkovic	CPPg++14.2.0	Success	5,142+30.53 RP
Aug 15, 2026 08:32	Tomislav Tunkovic	CPPg++14.2.0	Success	5,224+12.74 RP
Aug 15, 2026 08:26	Tomislav Tunkovic	CPPg++14.2.0	Success	5,259+16.13 RP
Aug 15, 2026 08:12	Tomislav Tunkovic	CPPg++14.2.0	Success	5,304+34.55 RP
Aug 15, 2026 07:45	Tomislav Tunkovic	CPPg++14.2.0	Success	5,403+102.05 RP
Aug 13, 2026 19:55	Tomislav Tunkovic	CPPg++14.2.0	Success	5,909
Aug 13, 2026 19:41	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,947
Aug 13, 2026 19:28	Tomislav Tunkovic	CPPg++14.2.0	Success	5,820
Aug 13, 2026 19:18	Tomislav Tunkovic	CPPg++14.2.0	Success	5,728
Aug 13, 2026 19:12	Tomislav Tunkovic	CPPg++14.2.0	Success	8,437
Aug 13, 2026 19:06	Tomislav Tunkovic	CPPg++14.2.0	Success	8,413
Aug 13, 2026 18:51	Tomislav Tunkovic	CPPg++14.2.0	Success	74,709
Aug 13, 2026 18:45	Tomislav Tunkovic	CPPg++14.2.0	Success	80,762
Aug 13, 2026 17:28	Tomislav Tunkovic	CPPg++14.2.0	Success	70,822
Aug 13, 2026 17:18	Tomislav Tunkovic	CPPg++14.2.0	Success	5,702+389.70 RP
Aug 13, 2026 16:05	Tomislav Tunkovic	CPPg++14.2.0	Success	7,331+79.55 RP
Aug 13, 2026 16:03	Tomislav Tunkovic	CPPg++14.2.0	Success	7,988
Aug 13, 2026 16:00	Tomislav Tunkovic	CPPg++14.2.0	Success	54,412
Aug 13, 2026 15:57	Tomislav Tunkovic	CPPg++14.2.0	Success	54,566
Aug 13, 2026 15:48	Tomislav Tunkovic	CPPg++14.2.0	Success	7,785+100.53 RP
Aug 13, 2026 15:38	Tomislav Tunkovic	CPPg++14.2.0	Success	8,446+297.55 RP
Aug 13, 2026 15:30	Tomislav Tunkovic	CPPg++14.2.0	Success	80,234
Aug 13, 2026 15:11	Tomislav Tunkovic	CPPg++14.2.0	Success	11,281+251.85 RP
Aug 13, 2026 15:01	Tomislav Tunkovic	CPPg++14.2.0	Success	15,758+634.60 RP
Aug 10, 2026 17:15	C21	CPPclang++20.1.2	Success	69,551+28.20 RP
Aug 10, 2026 16:21	C21	CPPclang++20.1.2	Error
Aug 8, 2026 19:39	C21	CPPclang++20.1.2	Success	212,508
Aug 8, 2026 15:10	C21	CPPg++10.5.0	Success	136,834
Aug 6, 2026 14:18	C21	CPPg++14.2.0	Success	86,524+63.68 RP
Aug 6, 2026 14:15	C21	CPPg++10.5.0	Success	192,715+51.89 RP
Aug 2, 2026 09:46	Victor Mercklé	CPPg++14.2.0	Success	3,269
Aug 1, 2026 19:53	CodeReclaimers	CPPclang++20.1.2	Success	5,575+16.89 RP
Aug 1, 2026 18:26	CodeReclaimers	CPPclang++20.1.2	Success	6,096
Aug 1, 2026 17:03	CodeReclaimers	CPPclang++20.1.2	Success	5,628+190.28 RP
Aug 1, 2026 16:13	CodeReclaimers	CPPclang++20.1.2	Success	7,117
Aug 1, 2026 15:47	CodeReclaimers	CPPclang++20.1.2	Success	6,303+28.67 RP
Aug 1, 2026 14:51	CodeReclaimers	CPPclang++20.1.2	Success	6,419+137.62 RP
Aug 1, 2026 13:18	CodeReclaimers	CPPclang++20.1.2	Success	9,587
Aug 1, 2026 13:16	CodeReclaimers	CPPclang++20.1.2	Success	7,041+303.43 RP
Aug 1, 2026 12:43	CodeReclaimers	CPPclang++20.1.2	Success	9,626
Aug 1, 2026 12:08	CodeReclaimers	CPPclang++20.1.2	Success	50,997
Aug 1, 2026 12:05	CodeReclaimers	CPPclang++20.1.2	Success	99,906
Aug 1, 2026 12:02	CodeReclaimers	CPPclang++20.1.2	Success	99,978
Jul 31, 2026 18:38	CodeReclaimers	CPPclang++20.1.2	Success	9,843
Jul 31, 2026 15:10	CodeReclaimers	CPPclang++20.1.2	Success	9,201
Jul 31, 2026 14:55	CodeReclaimers	CPPclang++20.1.2	Success	12,731
Jul 31, 2026 14:20	CodeReclaimers	CPPclang++20.1.2	Success	9,003
Jul 31, 2026 13:46	CodeReclaimers	CPPclang++20.1.2	Success	9,310
Jul 31, 2026 13:25	CodeReclaimers	CPPclang++20.1.2	Success	8,954+369.71 RP
Jul 31, 2026 06:13	Tony	CPPg++10.5.0	Success	192,897+51.84 RP

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