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.

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Joad Nacer

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Run Statistics

#	Date	Error
1	Jul 11, 2024 22:55	Error: expected "1025055 ", got "1025051 "
2	Jul 11, 2024 22:55	Error: expected "1018648 ", got "1018644 "
3	Jul 11, 2024 22:55	Error: expected "1019332 ", got "1019330 "
4	Jul 11, 2024 22:55	Error: expected "1025270 ", got "1025268 "
5	Jul 11, 2024 22:55	Error: expected "1018595 ", got "1018594 "
6	Jul 11, 2024 22:55	Error: expected "1025095 ", got "1025094 "
7	Jul 11, 2024 22:55	Error: expected "1021956 ", got "1021955 "
8	Jul 11, 2024 22:55	Error: No answer to stdout. Died or killed?
9	Jul 11, 2024 22:55	Error: expected "1020877 ", got "1020876 "
10	Jul 11, 2024 22:55	Error: expected "1023419 ", got "1023418 "
11	Jul 11, 2024 22:55	Error: expected "1021492 ", got "1021491 "
12	Jul 11, 2024 22:55	Error: expected "1022262 ", got "1022261 "
13	Jul 11, 2024 22:55	Error: expected "1020344 ", got "1020343 "
14	Jul 11, 2024 22:55	Error: expected "1020827 ", got "1020826 "
15	Jul 11, 2024 23:03	Error: expected "1025610 ", got "1025607 "
16	Jul 11, 2024 23:03	Error: expected "1018245 ", got "1018244 "
17	Jul 11, 2024 23:03	Error: expected "1018555 ", got "1018553 "
18	Jul 11, 2024 23:03	Error: expected "1020757 ", got "1020756 "
19	Jul 11, 2024 23:03	Error: expected "1025990 ", got "1025989 "
20	Jul 11, 2024 23:03	Error: expected "1020546 ", got "1020545 "
21	Jul 11, 2024 22:50	Error: expected "1023648 ", got "1023647 "
22	Jul 11, 2024 22:50	Error: expected "1024874 ", got "1024872 "
23	Jul 11, 2024 22:50	Error: expected "1019190 ", got "1019188 "
24	Jul 11, 2024 22:50	Error: expected "1023868 ", got "1023866 "
25	Jul 11, 2024 22:50	Error: expected "1018053 ", got "1018052 "
26	Jul 11, 2024 22:50	Error: expected "1019303 ", got "1019302 "
27	Jul 11, 2024 22:50	Error: expected "1025256 ", got "1025255 "
28	Jul 11, 2024 22:50	Error: expected "1018470 ", got "1018467 "
29	Jul 11, 2024 22:50	Error: expected "1025459 ", got "1025456 "
30	Jul 11, 2024 22:50	Error: expected "1019581 ", got "1019580 "
31	Jul 11, 2024 22:50	Error: expected "1020453 ", got "1020451 "
32	Jul 11, 2024 22:50	Error: expected "1025864 ", got "1025861 "
33	Jul 11, 2024 22:50	Error: expected "1023084 ", got "1023083 "
34	Jul 11, 2024 22:50	Error: expected "1026534 ", got "1026533 "
35	Jul 11, 2024 22:50	Error: expected "1018127 ", got "1018126 "
36	Jul 11, 2024 22:50	Error: expected "1022227 ", got "1022223 "
37	Jul 11, 2024 22:50	Error: expected "1023156 ", got "1023154 "
38	Jul 11, 2024 22:55	Error: expected "1026272 ", got "1026271 "
39	Jul 11, 2024 22:55	Error: expected "1021308 ", got "1021307 "

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