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	Score	Wall Time	CPU User	Memory	Error
1	Jul 9, 2024 16:20	0	0	0	0	Error: expected "1025750 ", got "1025749 "	stderr
2	Jul 9, 2024 17:38	0	0	0	0	Error: expected "1023132 ", got "1023131 "	stderr
3	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1019602 ", got "1019601 "	stderr
4	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1019363 ", got "1019361 "	stderr
5	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1022352 ", got "1023556 "	stderr
6	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1023980 ", got "1025166 "	stderr
7	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1025344 ", got "1025343 "	stderr
8	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1025909 ", got "1025908 "	stderr
9	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1019922 ", got "1019921 "	stderr
10	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1023186 ", got "1023185 "	stderr
11	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1019109 ", got "1019107 "	stderr
12	Jul 9, 2024 16:33	0	0	0	0	Error: expected "1025247 ", got "1026404 "	stderr
13	Jul 9, 2024 16:21	0	0	0	0	Error: expected "1025155 ", got "1025153 "	stderr
14	Jul 9, 2024 16:21	0	0	0	0	Error: expected "1026032 ", got "1026030 "	stderr
15	Jul 9, 2024 16:21	0	0	0	0	Error: expected "1019274 ", got "1020466 "	stderr
16	Jul 9, 2024 16:20	0	0	0	0	Error: expected "1022308 ", got "1022304 "	stderr
17	Jul 9, 2024 16:18	0	0	0	0	Error: expected "1025965 ", got "1025964 "	stderr
18	Jul 9, 2024 16:18	0	0	0	0	Error: expected "1018558 ", got "1018555 "	stderr
19	Jul 9, 2024 16:18	0	0	0	0	Error: expected "1025513 ", got "1025512 "	stderr
20	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1026038 ", got "1026036 "	stderr
21	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1023063 ", got "1024296 "	stderr
22	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1025673 ", got "1026797 "	stderr
23	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1023933 ", got "1023932 "	stderr
24	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1018377 ", got "1018376 "	stderr
25	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1021031 ", got "1021030 "	stderr
26	Jul 9, 2024 16:17	0	0	0	0	Error: expected "1022180 ", got "1023342 "	stderr
27	Jul 9, 2024 15:35	0	0	0	0	Error: expected "1019252 ", got "1019250 "	stderr
28	Jul 9, 2024 16:33	3,574	178,719,698	117,952,990	2,232,320
29	Jul 9, 2024 16:33	3,576	183,669,207	118,000,159	2,232,320
30	Jul 9, 2024 16:33	3,627	185,505,207	119,699,637	2,244,608

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