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.

Date	Author	Language	Status	Score
Jan 9, 2026 15:19	Pavel Skripkin	RUSTrust-1.92.0	Success	66,546
Jan 9, 2026 15:17	Pavel Skripkin	RUSTrust-1.92.0	Success	67,586
Jan 9, 2026 15:17	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:17	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:16	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 15:08	Josu San Martin	RUSTrust-1.92.0	Success	6,395
Jan 9, 2026 15:07	Josu San Martin	CPPg++13.3.0	Success	7,824
Jan 9, 2026 15:05	Josu San Martin	RUSTrust-1.92.0	Success	6,355+169.43 RP
Jan 9, 2026 14:57	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 14:54	Josu San Martin	CPPg++13.3.0	Success	6,640+34.35 RP
Jan 9, 2026 14:49	Josu San Martin	RUSTrust-1.92.0	Success	10,374
Jan 9, 2026 14:45	Josu San Martin	RUSTrust-1.92.0	Success	6,795+346.97 RP
Jan 9, 2026 14:42	Josu San Martin	CPPg++13.3.0	Success	6,811+18.31 RP
Jan 9, 2026 14:39	Josu San Martin	RUSTrust-1.92.0	Success	10,797
Jan 9, 2026 14:17	Josu San Martin	CPPg++13.3.0	Success	6,897+307.18 RP
Jan 9, 2026 14:10	Josu San Martin	CPPg++13.3.0	Success	12,534
Jan 9, 2026 14:06	Josu San Martin	RUSTrust-1.92.0	Success	9,973
Jan 9, 2026 08:57	Pavel Skripkin	RUSTrust-1.92.0	Success	62,277+22.23 RP
Jan 9, 2026 08:33	Pavel Skripkin	RUSTrust-1.92.0	Success	72,284+5.07 RP
Jan 9, 2026 08:31	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 9, 2026 08:27	Pavel Skripkin	RUSTrust-1.92.0	Success	75,034+0.61 RP
Jan 9, 2026 08:23	Pavel Skripkin	RUSTrust-1.92.0	Success	75,380+132.66 RP
Jan 9, 2026 04:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:34	Josu San Martin	RUSTrust-1.92.0	Success	8,895
Jan 9, 2026 04:33	Josu San Martin	CPPg++13.3.0	Success	8,751+14.57 RP
Jan 9, 2026 04:27	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Success	14,286
Jan 9, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:24	Josu San Martin	CPPg++13.3.0	Success	12,263
Jan 9, 2026 04:22	Josu San Martin	CPPg++13.3.0	Success	9,579
Jan 9, 2026 04:12	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:11	Josu San Martin	RUSTrust-1.92.0	Success	16,421
Jan 9, 2026 04:11	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:11	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 04:11	Josu San Martin	RUSTrust-1.92.0	Success	22,318
Jan 9, 2026 04:09	Josu San Martin	RUSTrust-1.92.0	Success	12,773
Jan 9, 2026 04:02	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:56	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:56	Josu San Martin	RUSTrust-1.92.0	Success	10,869
Jan 9, 2026 03:56	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:56	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:56	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:54	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:53	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:53	Josu San Martin	RUSTrust-1.92.0	Success	9,983
Jan 9, 2026 03:39	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:39	Josu San Martin	RUSTrust-1.92.0	Success	9,118
Jan 9, 2026 03:37	Josu San Martin	RUSTrust-1.92.0	Success	269,547
Jan 9, 2026 03:36	Josu San Martin	RUSTrust-1.92.0	Success	55,756
Jan 9, 2026 03:18	Josu San Martin	RUSTrust-1.92.0	Success	9,061
Jan 9, 2026 03:08	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:08	Josu San Martin	RUSTrust-1.92.0	Success	14,902
Jan 9, 2026 03:08	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:07	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:07	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:07	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:05	Josu San Martin	CPPg++13.3.0	Success	9,635
Jan 9, 2026 03:05	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 03:03	Josu San Martin	RUSTrust-1.92.0	Success	10,015
Jan 9, 2026 03:03	Josu San Martin	RUSTrust-1.92.0	Success	21,056
Jan 9, 2026 03:02	Josu San Martin	RUSTrust-1.92.0	Success	11,354
Jan 9, 2026 03:02	Josu San Martin	RUSTrust-1.92.0	Success	9,852
Jan 9, 2026 03:00	Josu San Martin	CPPg++13.3.0	Success	9,564
Jan 9, 2026 02:59	zielaj	CPPclang++18.1.3	Success	3,288
Jan 9, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:57	zielaj	CPPclang++18.1.3	Success	3,174
Jan 9, 2026 02:56	Josu San Martin	RUSTrust-1.92.0	Success	10,918
Jan 9, 2026 02:55	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:55	zielaj	CPPclang++18.1.3	Success	3,225
Jan 9, 2026 02:55	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:55	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:54	zielaj	CPPclang++18.1.3	Success	3,168
Jan 9, 2026 02:50	zielaj	CPPclang++18.1.3	Success	3,120
Jan 9, 2026 02:46	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:46	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:46	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:46	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:44	Josu San Martin	RUSTrust-1.92.0	Success	28,961
Jan 9, 2026 02:41	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:41	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 02:40	Josu San Martin	RUSTrust-1.92.0	Success	10,936
Jan 9, 2026 02:35	Josu San Martin	RUSTrust-1.92.0	Success	9,189
Jan 9, 2026 02:35	Josu San Martin	RUSTrust-1.92.0	Success	9,791
Jan 9, 2026 02:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 9, 2026 01:58	zielaj	CPPclang++18.1.3	Success	3,124
Jan 9, 2026 01:55	zielaj	CPPclang++18.1.3	Error
Jan 9, 2026 01:47	zielaj	CPPclang++18.1.3	Success	3,138
Jan 9, 2026 01:39	zielaj	CPPclang++18.1.3	Success	3,286
Jan 9, 2026 01:30	zielaj	CPPclang++18.1.3	Success	3,114+16.46 RP
Jan 9, 2026 01:28	zielaj	CPPclang++18.1.3	Success	3,136
Jan 9, 2026 01:23	zielaj	CPPclang++18.1.3	Error
Jan 9, 2026 01:09	zielaj	CPPclang++18.1.3	Success	3,137
Jan 9, 2026 00:52	zielaj	CPPclang++18.1.3	Success	3,692
Jan 8, 2026 23:37	Josu San Martin	CPPg++13.3.0	Success	9,206
Jan 8, 2026 23:34	Josu San Martin	CPPg++13.3.0	Success	10,926

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