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 18, 2026 01:25	Josu San Martin	CPPg++13.3.0	Success	4,277
Mar 18, 2026 01:21	Josu San Martin	CPPg++13.3.0	Error
Mar 18, 2026 00:30	Josu San Martin	CPPg++13.3.0	Success	25,187
Mar 17, 2026 19:42	Josu San Martin	CPPg++13.3.0	Success	5,053
Mar 17, 2026 19:40	Josu San Martin	CPPg++13.3.0	Error
Mar 17, 2026 19:32	Josu San Martin	CPPg++13.3.0	Error
Mar 17, 2026 17:41	Dominique Garmier	CPPg++13.3.0	Success	58,939
Mar 17, 2026 17:18	Alexander Krivolapov	RUSTrust-1.93.1	Success	27,906
Mar 17, 2026 17:16	Alexander Krivolapov	RUSTrust-1.93.1	Success	27,964
Mar 17, 2026 15:14	Alexander Krivolapov	RUSTrust-1.93.1	Success	27,945
Mar 17, 2026 15:12	Alexander Krivolapov	RUSTrust-1.93.1	Success	32,560
Mar 17, 2026 14:28	Josu San Martin	CPPg++13.3.0	Success	4,046+23.00 RP
Mar 17, 2026 05:36	Josu San Martin	CPPg++13.3.0	Error
Mar 17, 2026 05:32	Josu San Martin	CPPg++13.3.0	Success	6,787
Mar 17, 2026 05:28	Josu San Martin	CPPg++13.3.0	Success	8,719
Mar 17, 2026 03:28	Josu San Martin	CPPg++13.3.0	Success	4,508
Mar 17, 2026 03:18	Josu San Martin	CPPg++13.3.0	Success	5,171
Mar 17, 2026 03:18	Josu San Martin	CPPg++13.3.0	Success	16,363
Mar 17, 2026 01:15	Josu San Martin	CPPg++13.3.0	Success	4,098
Mar 17, 2026 01:13	Josu San Martin	CPPg++13.3.0	Success	5,191
Mar 17, 2026 01:11	Josu San Martin	CPPg++13.3.0	Success	19,258
Mar 17, 2026 01:04	Dominique Garmier	CPPg++13.3.0	Success	25,673
Mar 17, 2026 00:57	Dominique Garmier	CPPg++13.3.0	Success	19,760
Mar 17, 2026 00:53	Dominique Garmier	CPPg++13.3.0	Success	21,853
Mar 17, 2026 00:52	Dominique Garmier	CPPg++13.3.0	Success	21,880
Mar 17, 2026 00:52	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:50	Dominique Garmier	CPPg++13.3.0	Success	24,183
Mar 17, 2026 00:50	Dominique Garmier	CPPg++13.3.0	Success	19,675+13.50 RP
Mar 17, 2026 00:50	Dominique Garmier	CPPg++13.3.0	Success	20,270
Mar 17, 2026 00:47	Dominique Garmier	CPPg++13.3.0	Success	22,145
Mar 17, 2026 00:47	Dominique Garmier	CPPg++13.3.0	Success	20,563
Mar 17, 2026 00:47	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:47	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:45	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:45	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:45	Dominique Garmier	CPPg++13.3.0	Success	21,499
Mar 17, 2026 00:45	Dominique Garmier	CPPg++13.3.0	Success	22,249
Mar 17, 2026 00:38	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:35	Dominique Garmier	CPPg++13.3.0	Success	21,596
Mar 17, 2026 00:32	Dominique Garmier	CPPg++13.3.0	Success	24,259
Mar 17, 2026 00:29	Dominique Garmier	CPPg++13.3.0	Success	22,937
Mar 17, 2026 00:26	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:26	Dominique Garmier	CPPg++13.3.0	Error
Mar 17, 2026 00:23	Dominique Garmier	CPPg++13.3.0	Success	23,658
Mar 17, 2026 00:19	Dominique Garmier	CPPg++13.3.0	Success	47,404
Mar 17, 2026 00:17	Dominique Garmier	CPPg++13.3.0	Success	21,745
Mar 17, 2026 00:15	Dominique Garmier	CPPg++13.3.0	Success	22,382
Mar 17, 2026 00:08	Dominique Garmier	CPPg++13.3.0	Success	162,543
Mar 17, 2026 00:04	Dominique Garmier	CPPg++13.3.0	Success	42,626
Mar 17, 2026 00:01	Dominique Garmier	CPPg++13.3.0	Success	24,360
Mar 16, 2026 23:57	Dominique Garmier	CPPg++13.3.0	Success	29,532
Mar 16, 2026 23:54	Dominique Garmier	CPPg++13.3.0	Success	22,403
Mar 16, 2026 23:48	Dominique Garmier	CPPg++13.3.0	Success	20,212+4.25 RP
Mar 16, 2026 23:44	Dominique Garmier	CPPg++13.3.0	Success	22,102
Mar 16, 2026 23:42	Dominique Garmier	CPPg++13.3.0	Success	21,440
Mar 16, 2026 23:40	Dominique Garmier	CPPg++13.3.0	Success	22,300
Mar 16, 2026 23:40	Dominique Garmier	CPPg++13.3.0	Success	20,387+19.30 RP
Mar 16, 2026 23:40	Dominique Garmier	CPPg++13.3.0	Success	20,887
Mar 16, 2026 23:32	Dominique Garmier	CPPg++13.3.0	Success	21,222+10.25 RP
Mar 16, 2026 23:31	Dominique Garmier	CPPg++13.3.0	Success	34,814
Mar 16, 2026 23:29	Dominique Garmier	CPPg++13.3.0	Success	21,846
Mar 16, 2026 23:26	Dominique Garmier	CPPg++13.3.0	Success	21,694+75.12 RP
Mar 16, 2026 23:24	Dominique Garmier	CPPg++13.3.0	Success	26,172
Mar 16, 2026 23:20	Dominique Garmier	CPPg++13.3.0	Success	25,918+10.64 RP
Mar 16, 2026 23:17	Dominique Garmier	CPPg++13.3.0	Success	37,508
Mar 16, 2026 23:15	Dominique Garmier	CPPg++13.3.0	Success	26,653+20.66 RP
Mar 16, 2026 23:13	Dominique Garmier	CPPg++13.3.0	Success	34,279
Mar 16, 2026 23:13	Dominique Garmier	CPPg++13.3.0	Success	62,827
Mar 16, 2026 23:10	Dominique Garmier	CPPg++13.3.0	Success	28,227
Mar 16, 2026 23:10	Dominique Garmier	CPPg++13.3.0	Success	34,964
Mar 16, 2026 23:04	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 23:01	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 22:56	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 22:51	Dominique Garmier	CPPg++13.3.0	Success	36,139
Mar 16, 2026 22:49	Dominique Garmier	CPPg++13.3.0	Success	28,206+9.50 RP
Mar 16, 2026 22:48	Dominique Garmier	CPPg++13.3.0	Success	94,943
Mar 16, 2026 22:43	Dominique Garmier	CPPg++13.3.0	Success	28,983+14.41 RP
Mar 16, 2026 22:41	Dominique Garmier	CPPg++13.3.0	Success	31,687
Mar 16, 2026 22:41	Dominique Garmier	CPPg++13.3.0	Success	126,970
Mar 16, 2026 22:36	Dominique Garmier	CPPg++13.3.0	Success	83,375
Mar 16, 2026 17:42	Dominique Garmier	CPPg++13.3.0	Success	34,328
Mar 16, 2026 16:13	Dominique Garmier	CPPg++13.3.0	Success	30,940
Mar 16, 2026 15:22	Dominique Garmier	CPPg++13.3.0	Success	58,242
Mar 16, 2026 15:02	Dominique Garmier	CPPg++13.3.0	Success	71,309
Mar 16, 2026 11:49	Dominique Garmier	CPPg++13.3.0	Success	34,347
Mar 16, 2026 11:25	Dominique Garmier	CPPg++13.3.0	Success	39,492
Mar 16, 2026 11:23	Dominique Garmier	CPPg++13.3.0	Success	39,107
Mar 15, 2026 23:39	Dominique Garmier	CPPg++13.3.0	Success	40,266
Mar 15, 2026 23:35	Dominique Garmier	CPPg++13.3.0	Success	30,246+1.05 RP
Mar 15, 2026 23:15	Dominique Garmier	CPPg++13.3.0	Success	56,845
Mar 15, 2026 22:38	Dominique Garmier	CPPg++13.3.0	Success	59,786
Mar 15, 2026 22:37	Dominique Garmier	CPPg++13.3.0	Success	44,330
Mar 15, 2026 22:12	Dominique Garmier	CPPg++13.3.0	Success	31,617
Mar 15, 2026 22:12	Dominique Garmier	CPPg++13.3.0	Success	30,342+19.51 RP
Mar 15, 2026 21:56	Dominique Garmier	CPPclang++18.1.3	Success	133,201
Mar 15, 2026 17:07	Dominique Garmier	CPPclang++18.1.3	Success	32,251+1.76 RP
Mar 15, 2026 17:00	Dominique Garmier	CPPclang++18.1.3	Success	32,519
Mar 15, 2026 16:44	Dominique Garmier	CPPclang++18.1.3	Success	32,435+2.06 RP
Mar 15, 2026 16:08	Dominique Garmier	CPPg++13.3.0	Success	32,653+5.48 RP
Mar 15, 2026 13:23	Sneed	CPPclang++18.1.3	Success	30,493+209.74 RP

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