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.

Back to listJun 4, 2021 20:49

Yuriy Lyfenko

Score: 17,771

Success

Source Code

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 4, 2021 20:36	16,908	1,113,921,692	557,978,803	0	2,244,608
2	Jun 4, 2021 20:36	16,989	1,126,763,435	560,643,162	0	2,236,416
3	Jun 4, 2021 20:49	17,027	1,142,306,887	561,880,486	0	2,244,608
4	Jun 4, 2021 20:36	17,039	1,121,618,866	562,299,119	0	2,252,800
5	Jun 4, 2021 20:49	17,118	1,126,034,898	564,893,987	0	2,236,416
6	Jun 4, 2021 20:49	17,179	1,127,525,930	566,913,500	0	2,236,416
7	Jun 4, 2021 20:36	17,382	1,137,386,317	573,617,703	0	2,244,608
8	Jun 4, 2021 20:49	17,544	1,162,486,120	578,945,761	0	2,240,512
9	Jun 4, 2021 20:49	17,544	1,139,997,001	578,941,158	0	2,236,416
10	Jun 4, 2021 20:49	17,604	1,131,648,108	580,919,942	0	2,240,512
11	Jun 4, 2021 20:36	17,618	1,161,597,822	581,388,079	0	2,236,416
12	Jun 4, 2021 20:49	17,679	1,115,910,301	567,414,000	15,983,000	2,457,600
13	Jun 4, 2021 20:49	17,682	1,115,681,264	562,520,000	20,982,000	2,457,600
14	Jun 4, 2021 20:49	17,694	1,112,499,002	567,900,000	15,997,000	2,461,696
15	Jun 4, 2021 20:36	17,742	1,114,379,228	569,500,000	15,985,000	2,457,600
16	Jun 4, 2021 20:36	17,771	1,114,173,119	569,473,000	16,984,000	2,461,696
17	Jun 4, 2021 20:36	17,773	1,144,727,432	586,506,368	0	2,240,512
18	Jun 4, 2021 20:36	17,784	1,118,081,071	572,864,000	13,996,000	2,457,600
19	Jun 4, 2021 20:36	17,788	1,120,515,583	572,005,000	15,000,000	2,523,136
20	Jun 4, 2021 20:49	17,834	1,118,681,343	567,531,000	20,982,000	2,457,600
21	Jun 4, 2021 20:36	18,161	1,128,637,879	582,346,000	16,980,000	2,465,792
22	Jun 4, 2021 20:49	18,222	1,127,105,166	583,340,000	17,979,000	2,461,696
23	Jun 4, 2021 20:49	18,237	1,133,235,659	581,835,000	19,994,000	2,457,600
24	Jun 4, 2021 20:36	18,243	1,133,957,006	585,034,000	16,972,000	2,457,600
25	Jun 4, 2021 20:49	18,253	1,131,081,427	588,378,000	13,985,000	2,461,696
26	Jun 4, 2021 20:36	18,268	1,136,271,367	586,820,000	16,022,000	2,461,696
27	Jun 4, 2021 20:36	18,272	1,136,932,547	587,994,000	14,974,000	2,457,600
28	Jun 4, 2021 20:36	18,302	1,140,179,658	590,003,000	13,976,000	2,461,696
29	Jun 4, 2021 20:49	18,319	1,128,374,861	590,533,000	13,988,000	2,322,432
30	Jun 4, 2021 20:49	18,363	1,140,655,279	589,008,000	16,971,000	2,461,696

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