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
Mar 11, 2026 16:35	olliecrow	RUSTrust-1.94.0	Success	14,919
Mar 11, 2026 16:29	olliecrow	CPPg++13.3.0	Success	14,372
Mar 11, 2026 16:26	olliecrow	RUSTrust-1.94.0	Success	15,122
Mar 11, 2026 16:21	olliecrow	RUSTrust-1.94.0	Success	14,929
Mar 11, 2026 16:21	olliecrow	CPPg++13.3.0	Success	14,461
Mar 11, 2026 16:14	olliecrow	RUSTrust-1.94.0	Success	14,585
Mar 11, 2026 16:09	olliecrow	CPPg++13.3.0	Success	14,338
Mar 11, 2026 16:03	olliecrow	CPPg++13.3.0	Success	14,320
Mar 11, 2026 03:46	olliecrow	CPPg++13.3.0	Success	14,357
Mar 10, 2026 14:15	olliecrow	CPPg++13.3.0	Success	14,445
Mar 10, 2026 14:11	olliecrow	CPPg++13.3.0	Success	14,387
Mar 10, 2026 13:58	olliecrow	CPPg++13.3.0	Success	14,346
Mar 10, 2026 13:50	olliecrow	CPPg++13.3.0	Success	14,316+0.78 RP
Mar 10, 2026 13:49	olliecrow	CPPg++13.3.0	Success	14,425
Mar 10, 2026 13:43	olliecrow	CPPg++13.3.0	Success	14,429
Mar 10, 2026 13:29	olliecrow	CPPg++13.3.0	Success	14,332+0.24 RP
Mar 10, 2026 13:24	olliecrow	CPPg++13.3.0	Success	14,372
Mar 10, 2026 13:11	olliecrow	CPPg++13.3.0	Success	14,432
Mar 10, 2026 13:07	olliecrow	CPPg++13.3.0	Error
Mar 10, 2026 06:27	olliecrow	RUSTrust-1.93.0	Success	16,847
Mar 10, 2026 06:23	olliecrow	RUSTrust-1.93.0	Success	19,530
Mar 10, 2026 05:46	olliecrow	RUSTrust-1.94.0	Success	14,764
Mar 10, 2026 05:26	olliecrow	RUSTrust-1.94.0	Success	23,920
Mar 10, 2026 04:32	olliecrow	CPPg++13.3.0	Success	14,337+0.10 RP
Mar 10, 2026 04:31	olliecrow	CPPg++13.3.0	Error
Mar 10, 2026 04:24	olliecrow	CPPg++13.3.0	Success	14,419
Mar 10, 2026 04:20	olliecrow	CPPg++13.3.0	Success	14,473
Mar 9, 2026 21:39	Pavel Samygin	CPPclang++18.1.3	Success	54,866
Mar 9, 2026 21:26	Pavel Samygin	CPPclang++18.1.3	Error
Mar 9, 2026 21:25	Pavel Samygin	CPPclang++18.1.3	Error
Mar 9, 2026 21:16	Pavel Samygin	CPPclang++18.1.3	Success	13,285
Mar 9, 2026 21:16	Pavel Samygin	CPPclang++18.1.3	Success	13,331
Mar 9, 2026 21:15	Pavel Samygin	CPPclang++18.1.3	Error
Mar 9, 2026 21:09	Pavel Samygin	CPPclang++18.1.3	Success	12,909+4.06 RP
Mar 9, 2026 21:05	Pavel Samygin	CPPclang++18.1.3	Success	13,815
Mar 9, 2026 21:04	Pavel Samygin	CPPclang++18.1.3	Success	13,466
Mar 9, 2026 21:00	Pavel Samygin	CPPclang++18.1.3	Success	12,977+67.16 RP
Mar 9, 2026 20:42	Pavel Samygin	CPPclang++18.1.3	Success	18,391
Mar 9, 2026 20:25	Pavel Samygin	CPPclang++18.1.3	Success	14,216+1.48 RP
Mar 9, 2026 20:18	Pavel Samygin	CPPclang++18.1.3	Success	14,246+16.08 RP
Mar 9, 2026 20:05	Pavel Samygin	CPPclang++18.1.3	Success	14,711
Mar 9, 2026 13:50	Alexander Krivolapov	RUSTrust-1.93.1	Success	129,540
Mar 9, 2026 13:47	Alexander Krivolapov	RUSTrust-1.93.1	Success	38,981
Mar 9, 2026 13:45	Alexander Krivolapov	RUSTrust-1.93.1	Success	36,664
Mar 9, 2026 04:57	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:41	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:31	olliecrow	CPPg++13.3.0	Success	14,339+1.31 RP
Mar 9, 2026 04:00	olliecrow	CPPg++13.3.0	Success	14,470
Mar 9, 2026 03:52	olliecrow	CPPg++13.3.0	Success	14,414
Mar 9, 2026 03:46	olliecrow	CPPg++13.3.0	Success	14,397
Mar 9, 2026 03:38	olliecrow	CPPg++13.3.0	Success	14,506
Mar 9, 2026 03:21	olliecrow	CPPg++13.3.0	Success	14,475
Mar 9, 2026 03:15	olliecrow	CPPg++13.3.0	Success	14,381
Mar 9, 2026 02:57	olliecrow	CPPg++13.3.0	Success	15,380
Mar 9, 2026 02:51	olliecrow	CPPg++13.3.0	Success	15,318
Mar 9, 2026 02:36	olliecrow	CPPg++13.3.0	Success	14,395
Mar 7, 2026 16:45	Mohammad Anas Khan	CPPg++13.3.0	Success	287,950
Mar 7, 2026 16:35	Mohammad Anas Khan	CPPg++13.3.0	Success	109,091+71.25 RP
Mar 7, 2026 16:27	Mohammad Anas Khan	CPPg++13.3.0	Error
Mar 7, 2026 16:19	Mohammad Anas Khan	CPPg++13.3.0	Error
Mar 7, 2026 16:14	Mohammad Anas Khan	CPPg++13.3.0	Error
Mar 7, 2026 16:11	Mohammad Anas Khan	CPPg++13.3.0	Error
Mar 7, 2026 15:53	Mohammad Anas Khan	CPPg++13.3.0	Success	489,719+20.42 RP
Mar 6, 2026 23:39	Pavel Samygin	CPPclang++18.1.3	Success	14,970
Mar 6, 2026 23:33	Pavel Samygin	CPPclang++18.1.3	Success	14,580+41.17 RP
Mar 6, 2026 23:32	Pavel Samygin	CPPclang++18.1.3	Success	107,424
Mar 6, 2026 23:27	Pavel Samygin	CPPclang++18.1.3	Success	483,130
Mar 6, 2026 23:18	Pavel Samygin	CPPclang++18.1.3	Success	15,819
Mar 6, 2026 23:14	Pavel Samygin	CPPclang++18.1.3	Success	15,511+24.51 RP
Mar 6, 2026 23:00	Pavel Samygin	CPPclang++18.1.3	Success	16,124+9.99 RP
Mar 6, 2026 22:53	Pavel Samygin	CPPclang++18.1.3	Success	16,388+40.47 RP
Mar 6, 2026 22:25	Pavel Samygin	CPPclang++18.1.3	Success	17,552+37.88 RP
Mar 6, 2026 22:11	Pavel Samygin	CPPclang++18.1.3	Success	19,094
Mar 6, 2026 21:58	Pavel Samygin	CPPclang++18.1.3	Success	18,802+24.32 RP
Mar 6, 2026 21:47	Pavel Samygin	CPPclang++18.1.3	Success	19,703+0.95 RP
Mar 6, 2026 21:46	Pavel Samygin	CPPclang++18.1.3	Success	26,514
Mar 6, 2026 21:46	Pavel Samygin	CPPclang++18.1.3	Success	26,187
Mar 6, 2026 21:37	Pavel Samygin	CPPclang++18.1.3	Success	20,060
Mar 6, 2026 21:32	Pavel Samygin	CPPclang++18.1.3	Success	22,580
Mar 6, 2026 21:31	Pavel Samygin	CPPclang++18.1.3	Success	20,587
Mar 6, 2026 21:28	Pavel Samygin	CPPclang++18.1.3	Success	19,740+25.82 RP
Mar 6, 2026 21:25	Pavel Samygin	CPPclang++18.1.3	Success	24,801
Mar 6, 2026 21:15	Pavel Samygin	CPPclang++18.1.3	Success	20,800+2.83 RP
Mar 6, 2026 21:11	Pavel Samygin	CPPclang++18.1.3	Success	20,923+327.48 RP
Mar 6, 2026 19:15	Pavel Samygin	CPPclang++18.1.3	Error
Mar 6, 2026 19:15	Pavel Samygin	CPPclang++18.1.3	Error
Mar 6, 2026 19:11	Pavel Samygin	CPPclang++18.1.3	Success	66,462+130.22 RP
Mar 6, 2026 18:13	Pavel Samygin	CPPclang++18.1.3	Success	493,931+20.25 RP
Mar 6, 2026 10:45	olliecrow	CPPg++13.3.0	Success	14,400
Mar 6, 2026 02:17	olliecrow	CPPg++13.3.0	Success	14,371
Mar 6, 2026 01:33	olliecrow	CPPg++13.3.0	Success	14,381
Mar 6, 2026 01:22	Sergey Serebryakov	CPPg++13.3.0	Success	8,112+1'232.74 RP
Mar 6, 2026 00:56	olliecrow	CPPg++13.3.0	Success	14,431
Mar 6, 2026 00:51	olliecrow	CPPg++13.3.0	Success	14,366+0.24 RP
Mar 6, 2026 00:43	olliecrow	CPPg++13.3.0	Success	14,450
Mar 6, 2026 00:35	olliecrow	CPPg++13.3.0	Success	14,501
Mar 6, 2026 00:29	olliecrow	CPPg++13.3.0	Success	17,163
Mar 6, 2026 00:22	olliecrow	CPPg++13.3.0	Success	14,397
Mar 6, 2026 00:19	olliecrow	CPPg++13.3.0	Success	14,371+0.63 RP
Mar 6, 2026 00:15	olliecrow	CPPg++13.3.0	Success	14,384+0.72 RP

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