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 listDec 25, 2025 22:57

zielajScore: 3,761Success

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Dec 25, 2025 22:57	3,737	148,584,624	115,305,000	8,021,000	2,437,120
2	Dec 25, 2025 23:02	3,738	146,003,298	115,325,000	8,022,000	2,498,560
3	Dec 26, 2025 15:18	3,741	153,356,881	114,407,000	9,032,000	2,371,584
4	Dec 25, 2025 23:02	3,742	154,608,965	113,438,000	10,038,000	2,486,272
5	Dec 25, 2025 22:57	3,743	153,214,214	110,473,000	13,055,000	2,338,816
6	Dec 25, 2025 23:07	3,747	150,392,625	112,677,000	10,968,000	2,379,776
7	Dec 26, 2025 15:18	3,747	148,103,654	111,694,000	11,967,000	2,453,504
8	Dec 25, 2025 23:07	3,747	147,767,621	111,680,000	11,965,000	2,387,968
9	Dec 26, 2025 15:18	3,748	150,993,039	114,699,000	8,976,000	2,359,296
10	Dec 25, 2025 23:02	3,748	152,370,619	110,715,000	12,966,000	2,379,776
11	Dec 25, 2025 22:57	3,748	154,701,784	107,728,000	15,959,000	2,379,776
12	Dec 25, 2025 23:07	3,748	156,198,076	110,712,000	12,966,000	2,445,312
13	Dec 26, 2025 15:18	3,750	147,975,563	116,756,000	6,985,000	2,379,776
14	Dec 25, 2025 23:07	3,752	146,309,159	111,821,000	11,980,000	2,363,392
15	Dec 25, 2025 23:07	3,754	146,961,153	109,883,000	13,985,000	2,502,656
16	Dec 26, 2025 15:18	3,755	145,904,808	116,917,000	6,995,000	2,478,080
17	Dec 25, 2025 23:07	3,758	145,820,113	110,016,000	14,002,000	2,412,544
18	Dec 26, 2025 15:18	3,760	149,991,105	113,060,000	11,005,000	2,269,184
19	Dec 25, 2025 23:07	3,761	151,827,793	115,116,000	9,009,000	2,400,256
20	Dec 25, 2025 23:02	3,763	145,137,826	115,180,000	9,014,000	2,392,064
21	Dec 25, 2025 23:02	3,766	146,618,298	109,235,000	15,032,000	2,293,760
22	Dec 25, 2025 22:57	3,766	149,431,260	118,250,000	6,012,000	2,400,256
23	Dec 26, 2025 15:18	3,766	147,701,490	111,250,000	13,029,000	2,367,488
24	Dec 25, 2025 22:57	3,768	146,835,186	108,289,000	16,042,000	2,363,392
25	Dec 26, 2025 15:18	3,768	147,063,167	112,325,000	12,034,000	2,531,328
26	Dec 25, 2025 23:02	3,769	148,665,161	117,361,000	7,021,000	2,494,464
27	Dec 25, 2025 23:07	3,770	153,811,568	116,399,000	8,027,000	2,392,064
28	Dec 25, 2025 22:57	3,770	148,310,427	115,388,000	9,030,000	2,375,680
29	Dec 25, 2025 23:02	3,771	146,254,670	115,419,000	9,032,000	2,392,064
30	Dec 25, 2025 22:57	3,772	154,469,295	114,451,000	10,039,000	2,330,624
31	Dec 25, 2025 22:57	3,778	148,256,002	119,679,000	4,986,000	2,465,792
32	Dec 25, 2025 23:02	3,778	149,870,108	113,704,000	10,971,000	2,482,176
33	Dec 25, 2025 23:02	3,783	147,023,087	116,863,000	7,990,000	2,396,160
34	Dec 25, 2025 23:07	3,788	156,494,800	113,001,000	12,000,000	2,420,736
35	Dec 26, 2025 15:18	3,798	151,878,347	119,330,000	6,016,000	2,387,968
36	Dec 25, 2025 22:57	4,001	155,033,343	121,036,000	11,003,000	2,408,448

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