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 listFeb 11, 2026 19:42

olliecrowScore: 17,844Success

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 11, 2026 19:43	17,703	617,160,545	560,207,000	24,008,000	2,445,312
2	Feb 11, 2026 19:44	17,724	611,480,292	559,907,000	24,995,000	2,433,024
3	Feb 11, 2026 19:47	17,727	610,549,109	560,002,000	25,000,000	2,461,696
4	Feb 11, 2026 19:43	17,734	617,738,910	560,207,000	25,009,000	2,449,408
5	Feb 11, 2026 19:42	17,741	610,995,156	559,487,000	25,976,000	2,453,504
6	Feb 11, 2026 19:47	17,743	611,612,642	559,530,000	25,978,000	2,457,600
7	Feb 11, 2026 19:42	17,752	609,878,372	559,836,000	25,992,000	2,359,296
8	Feb 11, 2026 19:47	17,755	610,441,963	560,910,000	24,996,000	2,465,792
9	Feb 11, 2026 19:42	17,759	608,497,001	561,041,000	25,001,000	2,277,376
10	Feb 11, 2026 19:42	17,762	611,957,882	562,135,000	24,005,000	2,437,120
11	Feb 11, 2026 19:42	17,768	618,066,880	561,316,000	25,014,000	2,461,696
12	Feb 11, 2026 19:47	17,772	617,936,472	560,500,000	25,976,000	2,277,376
13	Feb 11, 2026 19:43	17,773	611,849,264	559,527,000	26,977,000	2,318,336
14	Feb 11, 2026 19:43	17,775	609,923,767	561,588,000	24,981,000	2,310,144
15	Feb 11, 2026 19:43	17,775	613,868,445	560,604,000	25,981,000	2,351,104
16	Feb 11, 2026 19:42	17,786	611,330,843	561,941,000	24,997,000	2,465,792
17	Feb 11, 2026 19:47	17,793	620,748,894	561,170,000	26,007,000	2,457,600
18	Feb 11, 2026 19:47	17,793	608,417,437	562,152,000	25,006,000	2,457,600
19	Feb 11, 2026 19:42	17,795	614,406,674	561,235,000	26,010,000	2,453,504
20	Feb 11, 2026 19:43	17,802	611,289,121	560,488,000	26,975,000	2,461,696
21	Feb 11, 2026 19:38	17,802	614,223,946	563,480,000	23,977,000	2,457,600
22	Feb 11, 2026 19:47	17,819	608,202,738	564,029,000	24,001,000	2,510,848
23	Feb 11, 2026 19:42	17,826	617,387,756	565,261,000	23,010,000	2,527,232
24	Feb 11, 2026 19:42	17,828	617,361,138	563,354,000	24,971,000	2,453,504
25	Feb 11, 2026 19:42	17,831	616,834,808	563,454,000	24,975,000	2,318,336
26	Feb 11, 2026 19:38	17,832	618,158,518	563,484,000	24,977,000	2,457,600
27	Feb 11, 2026 19:43	17,833	620,165,897	564,507,000	23,979,000	2,408,448
28	Feb 11, 2026 19:42	17,837	615,687,409	564,632,000	23,984,000	2,322,432
29	Feb 11, 2026 19:38	17,838	612,030,164	562,675,000	25,985,000	2,461,696
30	Feb 11, 2026 19:43	17,839	612,160,205	563,687,000	24,986,000	2,277,376
31	Feb 11, 2026 19:44	17,840	612,879,765	563,733,000	24,988,000	2,338,816
32	Feb 11, 2026 19:38	17,844	610,136,164	563,867,000	24,994,000	2,461,696
33	Feb 11, 2026 19:42	17,845	612,895,235	564,887,000	23,995,000	2,342,912
34	Feb 11, 2026 19:47	17,845	616,884,371	562,875,000	25,994,000	2,277,376
35	Feb 11, 2026 19:42	17,850	615,396,360	565,036,000	24,001,000	2,416,640
36	Feb 11, 2026 19:47	17,852	618,316,967	564,099,000	25,004,000	2,334,720
37	Feb 11, 2026 19:47	17,855	611,421,386	564,203,000	25,009,000	2,322,432
38	Feb 11, 2026 19:38	17,857	621,275,893	565,280,000	24,011,000	2,445,312
39	Feb 11, 2026 19:38	17,863	613,899,839	565,509,000	23,979,000	2,453,504
40	Feb 11, 2026 19:42	17,863	618,707,789	564,492,000	24,977,000	2,416,640
41	Feb 11, 2026 19:42	17,866	612,777,235	564,595,000	24,982,000	2,265,088
42	Feb 11, 2026 19:43	17,867	611,660,295	564,643,000	24,984,000	2,277,376
43	Feb 11, 2026 19:42	17,868	615,722,364	563,658,000	25,984,000	2,457,600
44	Feb 11, 2026 19:42	17,869	612,656,628	564,704,000	24,986,000	2,449,408
45	Feb 11, 2026 19:42	17,874	614,891,074	561,852,000	27,992,000	2,465,792
46	Feb 11, 2026 19:42	17,875	614,495,561	563,882,000	25,994,000	2,457,600
47	Feb 11, 2026 19:43	17,875	614,241,567	565,890,000	23,995,000	2,408,448
48	Feb 11, 2026 19:38	17,877	613,396,586	562,943,000	26,997,000	2,465,792
49	Feb 11, 2026 19:42	17,879	614,555,163	565,001,000	25,000,000	2,277,376
50	Feb 11, 2026 19:38	17,880	619,820,166	565,042,000	25,001,000	2,449,408
51	Feb 11, 2026 19:42	17,881	616,404,480	564,061,000	26,002,000	2,453,504
52	Feb 11, 2026 19:42	17,888	617,685,580	565,292,000	25,012,000	2,457,600
53	Feb 11, 2026 19:44	17,889	619,021,931	564,359,000	25,970,000	2,465,792
54	Feb 11, 2026 19:43	17,891	617,943,016	563,446,000	26,973,000	2,461,696
55	Feb 11, 2026 19:47	17,892	619,193,980	564,476,000	25,975,000	2,371,584
56	Feb 11, 2026 19:47	17,901	616,747,315	564,744,000	25,988,000	2,457,600
57	Feb 11, 2026 19:42	17,908	612,774,744	564,974,000	25,998,000	2,449,408
58	Feb 11, 2026 19:47	17,918	622,227,568	566,283,000	25,012,000	2,441,216
59	Feb 11, 2026 19:43	17,920	616,228,139	565,399,000	25,972,000	2,494,464
60	Feb 11, 2026 19:38	17,925	618,271,146	566,540,000	24,979,000	2,453,504
61	Feb 11, 2026 19:47	17,937	615,844,840	566,917,000	24,996,000	2,441,216
62	Feb 11, 2026 19:42	17,958	615,497,595	567,645,000	24,984,000	2,469,888
63	Feb 11, 2026 19:47	17,979	626,403,483	568,329,000	24,970,000	2,289,664

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