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
Jul 31, 2026 06:13	Tony	CPPg++10.5.0	Success	192,897+51.84 RP
Jul 30, 2026 20:40	CodeReclaimers	CPPclang++20.1.2	Success	13,385+387.25 RP
Jul 30, 2026 16:19	CodeReclaimers	CPPclang++20.1.2	Success	27,789+359.85 RP
Jul 28, 2026 21:19	boop34	CPPg++14.2.0	In queue
Jul 28, 2026 20:56	boop34	CPPg++14.2.0	In queue
Jul 26, 2026 16:34	boop34	CPPg++14.2.0	Success	6,717
Jul 25, 2026 18:03	boop34	CPPg++14.2.0	Error
Jul 25, 2026 18:00	boop34	CPPg++14.2.0	Error
Jul 25, 2026 17:59	boop34	CPPg++14.2.0	Error
Jul 25, 2026 17:47	boop34	CPPg++14.2.0	Success	9,749
Jul 25, 2026 17:39	boop34	CPPg++14.2.0	Success	6,792
Jul 25, 2026 17:38	boop34	CPPg++14.2.0	Success	6,692
Jul 25, 2026 17:36	boop34	CPPg++14.2.0	Success	6,654+25.53 RP
Jul 25, 2026 17:35	boop34	CPPg++14.2.0	Success	6,769+52.62 RP
Jul 25, 2026 17:32	boop34	CPPg++14.2.0	Success	7,079
Jul 25, 2026 17:23	boop34	CPPg++14.2.0	Success	7,019+4.45 RP
Jul 24, 2026 21:58	boop34	CPPg++14.2.0	Success	7,041+140.01 RP
Jul 24, 2026 21:57	boop34	CPPg++14.2.0	Error
Jul 24, 2026 21:42	boop34	CPPg++14.2.0	Success	7,811+12.98 RP
Jul 24, 2026 21:30	boop34	CPPg++14.2.0	Error
Jul 24, 2026 21:06	boop34	CPPg++14.2.0	Success	7,891+95.35 RP
Jul 24, 2026 20:58	boop34	CPPg++14.2.0	Success	8,533+141.42 RP
Jul 23, 2026 21:35	boop34	CPPg++14.2.0	Success	9,778
Jul 23, 2026 21:32	boop34	CPPg++14.2.0	Success	13,745
Jul 23, 2026 21:20	Leonardo Pedrozo Amaral	CPPg++10.5.0	Error
Jul 23, 2026 21:18	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	72,302
Jul 23, 2026 21:15	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	73,510
Jul 23, 2026 21:10	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	73,252
Jul 23, 2026 21:10	boop34	CPPg++14.2.0	Success	19,661
Jul 23, 2026 21:08	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	71,603+0.07 RP
Jul 23, 2026 21:08	boop34	CPPg++14.2.0	Success	9,704+0.11 RP
Jul 23, 2026 21:03	boop34	CPPg++14.2.0	Success	9,705+78.02 RP
Jul 23, 2026 20:12	boop34	CPPg++14.2.0	Error
Jul 23, 2026 20:11	boop34	CPPg++14.2.0	Error
Jul 23, 2026 19:19	boop34	CPPg++14.2.0	Success	10,598
Jul 23, 2026 18:03	boop34	CPPg++14.2.0	Success	11,726
Jul 23, 2026 17:49	boop34	CPPg++14.2.0	Success	13,641
Jul 23, 2026 17:42	boop34	CPPg++14.2.0	Error
Jul 23, 2026 17:37	boop34	CPPg++14.2.0	Error
Jul 23, 2026 17:35	boop34	CPPg++14.2.0	Success	10,518
Jul 23, 2026 17:31	boop34	CPPg++14.2.0	Success	11,134
Jul 23, 2026 17:25	boop34	CPPg++14.2.0	Success	10,500+93.05 RP
Jul 23, 2026 17:20	boop34	CPPg++14.2.0	Success	11,859
Jul 23, 2026 17:18	boop34	CPPg++14.2.0	Success	11,645
Jul 23, 2026 17:17	boop34	CPPg++14.2.0	Success	11,637+7.90 RP
Jul 23, 2026 17:15	boop34	CPPg++14.2.0	Success	13,166
Jul 23, 2026 16:55	boop34	CPPg++14.2.0	Success	12,109
Jul 23, 2026 16:54	boop34	CPPg++14.2.0	Success	11,745+11.87 RP
Jul 23, 2026 16:43	boop34	CPPg++14.2.0	Success	13,018
Jul 23, 2026 16:41	boop34	CPPg++14.2.0	Success	19,884
Jul 23, 2026 16:39	boop34	CPPg++14.2.0	Success	12,030
Jul 23, 2026 16:37	boop34	CPPg++14.2.0	Success	13,249
Jul 23, 2026 16:36	boop34	CPPg++14.2.0	Success	12,677
Jul 23, 2026 16:34	boop34	CPPg++14.2.0	Success	11,911+71.57 RP
Jul 23, 2026 16:32	boop34	CPPg++14.2.0	Success	13,021+7.71 RP
Jul 23, 2026 16:29	boop34	CPPg++14.2.0	Success	13,153+46.15 RP
Jul 23, 2026 15:45	boop34	CPPg++14.2.0	Success	56,760
Jul 23, 2026 15:41	boop34	CPPg++14.2.0	Error
Jul 23, 2026 15:40	boop34	CPPg++14.2.0	Error
Jul 23, 2026 15:37	boop34	CPPg++14.2.0	Error
Jul 23, 2026 14:41	boop34	CPPg++14.2.0	Error
Jul 22, 2026 21:43	boop34	CPPg++14.2.0	Success	14,003+1.83 RP
Jul 22, 2026 21:32	boop34	CPPg++14.2.0	Success	14,393
Jul 22, 2026 21:31	boop34	CPPg++14.2.0	Success	14,307
Jul 22, 2026 21:28	boop34	CPPg++14.2.0	Success	14,363
Jul 22, 2026 21:26	boop34	CPPg++14.2.0	Success	15,136
Jul 22, 2026 21:24	boop34	CPPg++14.2.0	Success	14,039+43.90 RP
Jul 22, 2026 21:21	boop34	CPPg++14.2.0	Success	14,961+16.43 RP
Jul 22, 2026 21:04	boop34	CPPg++14.2.0	Success	18,057
Jul 22, 2026 20:57	boop34	CPPg++14.2.0	Success	15,451
Jul 22, 2026 20:50	boop34	CPPg++14.2.0	Success	15,338+282.82 RP
Jul 22, 2026 20:11	boop34	CPPg++14.2.0	Error
Jul 22, 2026 18:35	boop34	CPPg++14.2.0	Success	27,089+1.66 RP
Jul 22, 2026 17:41	boop34	CPPg++14.2.0	Success	27,494
Jul 22, 2026 17:39	boop34	CPPg++14.2.0	Success	27,211+0.77 RP
Jul 22, 2026 17:36	boop34	CPPg++14.2.0	Success	30,613
Jul 22, 2026 16:20	boop34	CPPg++14.2.0	Success	27,544
Jul 22, 2026 15:43	boop34	CPPg++14.2.0	Success	27,268+22.95 RP
Jul 20, 2026 20:58	boop34	CPPg++14.2.0	Success	29,088+54.92 RP
Jul 20, 2026 20:24	boop34	CPPg++14.2.0	Success	34,618+226.02 RP
Jul 20, 2026 15:35	boop34	CPPg++14.2.0	Success	159,118+13.54 RP
Jul 20, 2026 14:50	boop34	CPPg++14.2.0	Success	202,795+49.31 RP
Jul 20, 2026 12:23	Serge Smirnov	CPPg++10.5.0	Success	193,228+51.75 RP
Jul 19, 2026 00:03	Ondřej Polanecký	CPPg++10.5.0	Error
Jul 18, 2026 20:01	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	71,638+3.37 RP
Jul 18, 2026 19:56	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	76,156
Jul 18, 2026 19:55	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	73,411+18.26 RP
Jul 18, 2026 19:43	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	84,772+17.53 RP
Jul 18, 2026 19:17	Leonardo Pedrozo Amaral	CPPg++10.5.0	Error
Jul 18, 2026 16:25	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	99,566+15.37 RP
Jul 18, 2026 15:53	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	148,226
Jul 16, 2026 08:19	Andrew Tsibin	RUSTrust-1.95.0	Success	9,459+750.36 RP
Jul 16, 2026 00:54	Andrew Tsibin	RUSTrust-1.95.0	Success	32,591+306.83 RP
Jul 10, 2026 18:34	Genos0	CPPg++10.5.0	Success	69,742+91.42 RP
Jul 9, 2026 20:25	Victor Mercklé	CPPg++13.3.0	Success	8,557
Jul 9, 2026 20:18	Victor Mercklé	CPPg++13.3.0	Success	55,056
Jul 9, 2026 20:04	Victor Mercklé	CPPg++13.3.0	Success	4,382
Jul 9, 2026 19:59	Victor Mercklé	CPPg++13.3.0	Success	6,001
Jul 9, 2026 08:29	Victor Mercklé	CPPg++13.3.0	Success	5,022
Jul 8, 2026 13:13	Victor Mercklé	CPPg++13.3.0	Success	101,883

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