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
Jun 21, 2026 22:06	Victor Mercklé	CPPg++13.3.0	Success	6,144
Jun 21, 2026 21:57	Victor Mercklé	CPPg++13.3.0	Success	6,144
Jun 21, 2026 21:52	Victor Mercklé	CPPg++13.3.0	Success	6,144
Jun 21, 2026 21:46	Victor Mercklé	CPPg++13.3.0	Success	6,162
Jun 21, 2026 21:35	Victor Mercklé	CPPg++13.3.0	Success	6,330
Jun 21, 2026 21:28	Victor Mercklé	CPPg++13.3.0	Success	6,303
Jun 21, 2026 21:23	Victor Mercklé	CPPg++13.3.0	Success	6,590
Jun 21, 2026 21:10	Victor Mercklé	CPPg++13.3.0	Success	6,158
Jun 21, 2026 21:05	Victor Mercklé	CPPg++13.3.0	Success	6,359
Jun 21, 2026 21:00	Victor Mercklé	CPPg++13.3.0	Success	6,447
Jun 21, 2026 20:55	Victor Mercklé	CPPg++13.3.0	Success	6,357
Jun 21, 2026 20:50	Victor Mercklé	CPPg++13.3.0	Success	7,354
Jun 21, 2026 19:52	Victor Mercklé	CPPg++13.3.0	Success	6,172
Jun 21, 2026 19:44	Victor Mercklé	CPPg++13.3.0	Success	6,913
Jun 21, 2026 19:39	Victor Mercklé	CPPg++13.3.0	Success	6,207
Jun 21, 2026 19:34	Victor Mercklé	CPPg++13.3.0	Success	6,282
Jun 21, 2026 19:28	Victor Mercklé	CPPg++13.3.0	Success	6,149
Jun 21, 2026 19:23	Victor Mercklé	CPPg++13.3.0	Success	9,195
Jun 21, 2026 19:17	Victor Mercklé	CPPg++13.3.0	Success	7,647
Jun 21, 2026 19:07	Victor Mercklé	CPPg++13.3.0	Success	6,158
Jun 21, 2026 18:56	Victor Mercklé	CPPg++13.3.0	Success	6,171
Jun 21, 2026 18:51	Victor Mercklé	CPPg++13.3.0	Success	6,167
Jun 21, 2026 18:46	Victor Mercklé	CPPg++13.3.0	Success	6,185
Jun 21, 2026 18:41	Victor Mercklé	CPPg++13.3.0	Success	6,159
Jun 21, 2026 18:36	Victor Mercklé	CPPg++13.3.0	Success	6,143+1.85 RP
Jun 21, 2026 18:28	Victor Mercklé	CPPg++13.3.0	Success	6,189
Jun 21, 2026 18:23	Victor Mercklé	CPPg++13.3.0	Success	6,222
Jun 21, 2026 18:18	Victor Mercklé	CPPg++13.3.0	Success	6,150+9.72 RP
Jun 21, 2026 18:12	Victor Mercklé	CPPg++13.3.0	Success	6,375
Jun 21, 2026 18:07	Victor Mercklé	CPPg++13.3.0	Success	6,204
Jun 21, 2026 18:01	Victor Mercklé	CPPg++13.3.0	Success	6,192
Jun 21, 2026 17:54	Victor Mercklé	CPPg++13.3.0	Success	6,223
Jun 21, 2026 17:49	Victor Mercklé	CPPg++13.3.0	Success	6,206
Jun 21, 2026 17:44	Victor Mercklé	CPPg++13.3.0	Success	6,215
Jun 21, 2026 17:39	Victor Mercklé	CPPg++13.3.0	Success	6,187+1.31 RP
Jun 21, 2026 17:34	Victor Mercklé	CPPg++13.3.0	Success	6,192+0.52 RP
Jun 21, 2026 17:29	Victor Mercklé	CPPg++13.3.0	Success	6,210
Jun 21, 2026 17:19	Victor Mercklé	CPPg++13.3.0	Success	6,197
Jun 21, 2026 17:06	Victor Mercklé	CPPg++13.3.0	Success	6,227
Jun 21, 2026 17:01	Victor Mercklé	CPPg++13.3.0	Success	6,206
Jun 21, 2026 16:55	Victor Mercklé	CPPg++13.3.0	Success	6,206
Jun 21, 2026 16:50	Victor Mercklé	CPPg++13.3.0	Success	6,194+4.16 RP
Jun 21, 2026 16:45	Victor Mercklé	CPPg++13.3.0	Success	6,271
Jun 21, 2026 16:40	Victor Mercklé	CPPg++13.3.0	Success	6,214
Jun 21, 2026 16:35	Victor Mercklé	CPPg++13.3.0	Success	7,053
Jun 21, 2026 16:26	Victor Mercklé	CPPg++13.3.0	Success	6,440
Jun 21, 2026 16:21	Victor Mercklé	CPPg++13.3.0	Success	6,211
Jun 21, 2026 16:16	Victor Mercklé	CPPg++13.3.0	Success	6,435
Jun 21, 2026 16:11	Victor Mercklé	CPPg++13.3.0	Success	7,475
Jun 21, 2026 16:06	Victor Mercklé	CPPg++13.3.0	Success	6,649
Jun 21, 2026 16:01	Victor Mercklé	CPPg++13.3.0	Success	6,210+1.55 RP
Jun 21, 2026 15:56	Victor Mercklé	CPPg++13.3.0	Success	6,238
Jun 21, 2026 15:51	Victor Mercklé	CPPg++13.3.0	Success	6,258
Jun 21, 2026 15:43	Victor Mercklé	CPPg++13.3.0	Success	6,282
Jun 21, 2026 15:37	Victor Mercklé	CPPg++13.3.0	Error
Jun 21, 2026 15:26	Victor Mercklé	CPPg++13.3.0	Success	6,275
Jun 21, 2026 15:19	Victor Mercklé	CPPg++13.3.0	Success	6,419
Jun 21, 2026 15:14	Victor Mercklé	CPPg++13.3.0	Success	6,259
Jun 21, 2026 15:09	Victor Mercklé	CPPg++13.3.0	Success	6,255
Jun 21, 2026 15:04	Victor Mercklé	CPPg++13.3.0	Success	6,347
Jun 21, 2026 14:53	Victor Mercklé	CPPg++13.3.0	Success	6,229
Jun 21, 2026 11:58	Victor Mercklé	CPPg++13.3.0	Success	8,754
Jun 21, 2026 11:53	Victor Mercklé	CPPg++13.3.0	Success	49,059
Jun 21, 2026 11:46	Victor Mercklé	CPPg++13.3.0	Success	6,237
Jun 21, 2026 11:41	Victor Mercklé	CPPg++13.3.0	Success	6,225
Jun 21, 2026 11:36	Victor Mercklé	CPPg++13.3.0	Success	6,407
Jun 21, 2026 11:31	Victor Mercklé	CPPg++13.3.0	Success	6,743
Jun 21, 2026 11:26	Victor Mercklé	CPPg++13.3.0	Success	6,746
Jun 21, 2026 10:19	Victor Mercklé	CPPg++13.3.0	Success	7,782
Jun 21, 2026 10:14	Victor Mercklé	CPPg++13.3.0	Success	6,777
Jun 21, 2026 10:09	Victor Mercklé	CPPg++13.3.0	Success	6,780
Jun 21, 2026 10:04	Victor Mercklé	CPPg++13.3.0	Success	6,781
Jun 21, 2026 09:59	Victor Mercklé	CPPg++13.3.0	Success	6,784
Jun 21, 2026 09:36	Victor Mercklé	CPPg++13.3.0	Success	6,325
Jun 21, 2026 09:31	Victor Mercklé	CPPg++13.3.0	Success	6,721
Jun 21, 2026 09:26	Victor Mercklé	CPPg++13.3.0	Success	8,291
Jun 21, 2026 09:21	Victor Mercklé	CPPg++13.3.0	Success	8,533
Jun 21, 2026 08:51	Victor Mercklé	CPPg++13.3.0	Success	6,221
Jun 21, 2026 08:44	Victor Mercklé	CPPg++13.3.0	Success	6,227
Jun 21, 2026 08:38	Victor Mercklé	CPPg++13.3.0	Success	6,235
Jun 21, 2026 08:33	Victor Mercklé	CPPg++13.3.0	Success	6,229
Jun 21, 2026 08:28	Victor Mercklé	CPPg++13.3.0	Success	6,251
Jun 21, 2026 08:23	Victor Mercklé	CPPg++13.3.0	Success	6,229
Jun 21, 2026 08:18	Victor Mercklé	CPPg++13.3.0	Success	6,232
Jun 21, 2026 08:05	Victor Mercklé	CPPg++13.3.0	Success	6,220
Jun 21, 2026 07:59	Victor Mercklé	CPPg++13.3.0	Success	7,518
Jun 21, 2026 07:54	Victor Mercklé	CPPg++13.3.0	Success	6,280
Jun 21, 2026 07:49	Victor Mercklé	CPPg++13.3.0	Success	6,269
Jun 21, 2026 07:37	Victor Mercklé	CPPg++13.3.0	Success	6,787
Jun 21, 2026 07:29	Victor Mercklé	CPPg++13.3.0	Success	6,249
Jun 21, 2026 07:24	Victor Mercklé	CPPg++13.3.0	Success	6,245
Jun 21, 2026 07:19	Victor Mercklé	CPPg++13.3.0	Success	6,283
Jun 21, 2026 07:14	Victor Mercklé	CPPg++13.3.0	Success	6,261
Jun 21, 2026 07:09	Victor Mercklé	CPPg++13.3.0	Success	6,249
Jun 21, 2026 07:03	Victor Mercklé	CPPg++13.3.0	Success	6,224
Jun 21, 2026 06:58	Victor Mercklé	CPPg++13.3.0	Success	6,230
Jun 21, 2026 06:52	Victor Mercklé	CPPg++13.3.0	Success	6,223
Jun 21, 2026 06:47	Victor Mercklé	CPPg++13.3.0	Success	6,216+3.36 RP
Jun 21, 2026 06:39	Victor Mercklé	CPPg++13.3.0	Success	6,229+4.37 RP
Jun 21, 2026 06:34	Victor Mercklé	CPPg++13.3.0	Success	6,246+7.40 RP

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