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
Nov 3, 2026 09:26	C21	CPPclang++20.1.2	Error
Nov 3, 2026 08:11	C21	CPPclang++20.1.2	Error
Nov 2, 2026 18:24	Leonardo Pedrozo Amaral	CPPg++10.5.0	Error
Nov 2, 2026 14:57	Andrew Epstein	CPPg++13.3.0	Success	2,707
Nov 2, 2026 06:40	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,108
Nov 2, 2026 06:12	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Error	+12.26 RP
Nov 2, 2026 06:05	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	8,707
Nov 2, 2026 06:04	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Error	+122.00 RP
Nov 2, 2026 05:54	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,081
Nov 2, 2026 05:01	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,140
Nov 2, 2026 04:59	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,732
Nov 2, 2026 04:45	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,809
Nov 2, 2026 04:35	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,287
Nov 2, 2026 04:33	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,689
Nov 2, 2026 04:23	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,688
Nov 2, 2026 04:18	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,072+12.97 RP
Nov 2, 2026 03:57	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,653
Nov 2, 2026 03:51	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	9,180+135.13 RP
Nov 2, 2026 03:49	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	12,813
Nov 2, 2026 03:40	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,480+1.36 RP
Nov 2, 2026 03:34	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,495+2.63 RP
Nov 2, 2026 03:28	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,633
Nov 2, 2026 03:22	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,524+2.70 RP
Nov 2, 2026 03:19	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	10,635
Nov 2, 2026 03:16	Md Nafis Ul Haque Shifat	CPPg++12.4.0	Success	13,150
Nov 2, 2026 01:29	Md Nafis Ul Haque Shifat	CPPg++12.4.0	Success	10,554+159.42 RP
Nov 2, 2026 00:49	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	12,689+147.96 RP
Nov 1, 2026 23:20	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	193,828
Nov 1, 2026 21:54	Md Nafis Ul Haque Shifat	CPPg++12.4.0	Success	16,303
Nov 1, 2026 21:48	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	17,160
Nov 1, 2026 21:33	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	17,973
Nov 1, 2026 21:28	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	16,248
Nov 1, 2026 21:13	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	15,622+12.69 RP
Nov 1, 2026 21:12	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	16,071
Nov 1, 2026 21:05	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	15,938+123.50 RP
Nov 1, 2026 20:07	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	19,844+375.88 RP
Nov 1, 2026 19:46	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	78,118
Nov 1, 2026 19:39	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	78,092+128.05 RP
Oct 31, 2026 01:16	Andrew Epstein	ZIG0.15.1	Success	2,709+52.39 RP
Oct 31, 2026 01:05	Andrew Epstein	CSHARP9.0.18	Success	2,779+2.59 RP
Oct 31, 2026 01:04	Andrew Epstein	ZIG0.15.1	Success	2,748
Oct 31, 2026 01:00	Andrew Epstein	GOgo1.26.2	Success	2,763+10.45 RP
Oct 31, 2026 00:56	Andrew Epstein	ZIG0.15.1	Error
Oct 31, 2026 00:55	Andrew Epstein	CSHARP9.0.18	Success	2,793
Oct 31, 2026 00:54	Andrew Epstein	GOgo1.26.2	Success	2,797
Oct 31, 2026 00:54	Andrew Epstein	RUSTrust-1.95.0	Success	2,712+71.99 RP
Oct 31, 2026 00:38	Andrew Epstein	CPPg++13.3.0	Success	2,688+63.09 RP
Oct 31, 2026 00:35	Andrew Epstein	CPPg++13.3.0	Success	36,025
Oct 31, 2026 00:23	Andrew Epstein	CPPg++13.3.0	Success	2,741
Oct 31, 2026 00:17	Andrew Epstein	CPPg++13.3.0	Success	2,727
Oct 31, 2026 00:15	Andrew Epstein	CPPg++13.3.0	Success	2,726
Oct 31, 2026 00:06	Andrew Epstein	CPPg++13.3.0	Success	35,959
Oct 31, 2026 00:04	Andrew Epstein	CPPg++13.3.0	Success	2,720
Oct 30, 2026 23:59	Andrew Epstein	CPPg++13.3.0	Success	27,978
Oct 30, 2026 23:50	Andrew Epstein	CPPg++13.3.0	Success	28,004
Oct 30, 2026 23:47	Andrew Epstein	CPPg++13.3.0	Success	2,736
Oct 30, 2026 23:47	Andrew Epstein	CPPg++13.3.0	Success	2,727
Oct 30, 2026 23:42	Andrew Epstein	CPPg++13.3.0	Success	41,351
Oct 30, 2026 23:41	Andrew Epstein	CPPg++13.3.0	Success	2,746
Oct 30, 2026 23:37	Andrew Epstein	CPPg++13.3.0	Success	33,155
Oct 30, 2026 23:35	Andrew Epstein	CPPg++13.3.0	Success	2,717+21.55 RP
Oct 30, 2026 23:15	Andrew Epstein	CPPg++13.3.0	Success	33,170
Oct 30, 2026 23:09	Andrew Epstein	CPPg++13.3.0	Success	38,597
Oct 30, 2026 23:04	Andrew Epstein	CPPg++13.3.0	Success	41,493
Oct 30, 2026 23:03	Andrew Epstein	CPPg++13.3.0	Success	2,733+4.01 RP
Oct 30, 2026 23:00	Andrew Epstein	CPPg++13.3.0	Success	2,741
Oct 30, 2026 22:58	Andrew Epstein	CPPg++13.3.0	Success	25,513
Oct 30, 2026 22:53	Andrew Epstein	CPPg++13.3.0	Success	54,861
Oct 30, 2026 22:51	Andrew Epstein	CPPg++13.3.0	Success	2,773
Oct 30, 2026 22:48	Andrew Epstein	CPPg++13.3.0	Success	2,736+57.85 RP
Oct 30, 2026 22:46	Andrew Epstein	CPPg++13.3.0	Success	50,663
Oct 30, 2026 22:41	Andrew Epstein	CPPg++13.3.0	Success	25,635
Oct 30, 2026 22:39	Andrew Epstein	CPPg++13.3.0	Success	2,780+210.74 RP
Oct 30, 2026 22:35	Andrew Epstein	CPPg++13.3.0	Success	23,031
Oct 30, 2026 22:29	Andrew Epstein	CPPg++13.3.0	Success	26,458
Oct 30, 2026 22:25	Andrew Epstein	CPPg++13.3.0	Success	2,996
Oct 30, 2026 22:25	Andrew Epstein	CPPg++13.3.0	Success	45,763
Oct 30, 2026 22:20	Andrew Epstein	CPPg++13.3.0	Success	25,656
Oct 30, 2026 22:13	Andrew Epstein	CPPg++13.3.0	Success	23,560
Oct 30, 2026 22:02	Andrew Epstein	CPPg++13.3.0	Success	42,031
Oct 30, 2026 21:58	Andrew Epstein	CPPg++13.3.0	Success	2,953+37.42 RP
Oct 30, 2026 21:57	Andrew Epstein	CPPg++13.3.0	Success	30,553
Oct 30, 2026 21:54	Andrew Epstein	CPPg++13.3.0	Success	45,999
Oct 30, 2026 21:52	Andrew Epstein	CPPg++13.3.0	Success	35,913
Oct 30, 2026 21:51	Andrew Epstein	CPPg++13.3.0	Success	53,126
Oct 30, 2026 21:39	Andrew Epstein	CPPclang++20.1.2	Success	3,001
Oct 30, 2026 21:39	Andrew Epstein	CPPg++14.2.0	Success	3,013
Oct 30, 2026 21:38	Andrew Epstein	CPPg++13.3.0	Success	69,518
Oct 30, 2026 21:24	Andrew Epstein	CPPg++13.3.0	Success	43,703
Oct 30, 2026 03:09	Andrew Epstein	CPPg++13.3.0	Success	2,986+77.78 RP
Oct 30, 2026 03:09	Andrew Epstein	CPPg++13.3.0	Success	3,057+49.53 RP
Oct 30, 2026 03:02	Andrew Epstein	CPPg++13.3.0	Success	32,474
Oct 30, 2026 02:53	Andrew Epstein	CPPg++13.3.0	Success	59,597
Oct 30, 2026 02:33	Andrew Epstein	CPPg++13.3.0	Success	36,094
Oct 30, 2026 02:32	Andrew Epstein	CPPg++13.3.0	Success	52,832
Oct 30, 2026 02:09	Andrew Epstein	CPPg++13.3.0	Success	3,104+152.28 RP
Oct 30, 2026 02:08	Andrew Epstein	CPPg++13.3.0	Success	65,691
Oct 30, 2026 01:44	Andrew Epstein	CPPg++13.3.0	Success	39,762
Oct 30, 2026 01:23	Andrew Epstein	CPPg++13.3.0	Success	48,653
Oct 30, 2026 01:19	Andrew Epstein	CPPg++13.3.0	Success	46,593

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