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 19:41

olliecrowScore: 18,230Success

Source Code

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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 19:38	18,038	621,840,939	571,230,000	24,009,000	2,445,312
2	Feb 11, 2026 19:41	18,052	621,652,587	570,713,000	24,987,000	2,383,872
3	Feb 11, 2026 19:30	18,065	618,362,114	571,131,000	25,005,000	2,457,600
4	Feb 11, 2026 19:37	18,083	625,730,159	572,749,000	23,989,000	2,265,088
5	Feb 11, 2026 19:29	18,090	621,563,740	570,976,000	25,998,000	2,445,312
6	Feb 11, 2026 19:30	18,093	622,879,156	572,071,000	25,003,000	2,277,376
7	Feb 11, 2026 19:30	18,099	627,920,253	572,257,000	25,011,000	2,269,184
8	Feb 11, 2026 19:30	18,101	623,253,807	572,310,000	25,013,000	2,379,776
9	Feb 11, 2026 19:38	18,106	625,344,272	572,524,000	24,979,000	2,289,664
10	Feb 11, 2026 19:30	18,106	625,366,028	573,512,000	23,979,000	2,412,544
11	Feb 11, 2026 19:29	18,114	622,939,888	571,773,000	25,989,000	2,355,200
12	Feb 11, 2026 19:38	18,116	624,676,380	572,846,000	24,993,000	2,457,600
13	Feb 11, 2026 19:30	18,120	626,158,251	573,970,000	23,998,000	2,404,352
14	Feb 11, 2026 19:29	18,138	621,682,230	573,565,000	24,981,000	2,277,376
15	Feb 11, 2026 19:30	18,139	623,094,431	571,601,000	26,981,000	2,375,680
16	Feb 11, 2026 19:30	18,146	625,222,256	570,817,000	27,991,000	2,277,376
17	Feb 11, 2026 19:28	18,150	623,505,374	574,948,000	23,997,000	2,461,696
18	Feb 11, 2026 19:29	18,158	626,279,667	575,202,000	24,008,000	2,277,376
19	Feb 11, 2026 19:41	18,158	623,764,825	573,264,000	25,966,000	2,506,752
20	Feb 11, 2026 19:37	18,159	626,482,640	572,228,000	27,010,000	2,437,120
21	Feb 11, 2026 19:29	18,166	626,684,438	574,492,000	24,977,000	2,433,024
22	Feb 11, 2026 19:38	18,177	623,067,157	574,851,000	24,993,000	2,433,024
23	Feb 11, 2026 19:28	18,186	626,513,293	575,147,000	25,006,000	2,453,504
24	Feb 11, 2026 19:30	18,187	621,963,209	576,155,000	24,006,000	2,428,928
25	Feb 11, 2026 19:30	18,187	625,508,514	575,158,000	25,006,000	2,408,448
26	Feb 11, 2026 19:30	18,190	627,206,281	574,289,000	25,967,000	2,465,792
27	Feb 11, 2026 19:30	18,197	626,910,669	576,509,000	23,979,000	2,461,696
28	Feb 11, 2026 19:37	18,198	631,370,947	576,553,000	23,981,000	2,404,352
29	Feb 11, 2026 19:32	18,198	622,483,083	574,524,000	26,023,000	2,478,080
30	Feb 11, 2026 19:37	18,200	623,163,153	574,624,000	25,983,000	2,277,376
31	Feb 11, 2026 19:30	18,200	625,040,157	574,627,000	25,983,000	2,277,376
32	Feb 11, 2026 19:28	18,203	624,170,351	573,719,000	26,986,000	2,453,504
33	Feb 11, 2026 19:38	18,208	624,886,403	575,862,000	24,994,000	2,277,376
34	Feb 11, 2026 19:30	18,214	621,679,103	577,074,000	24,003,000	2,453,504
35	Feb 11, 2026 19:30	18,218	628,675,777	577,183,000	24,007,000	2,461,696
36	Feb 11, 2026 19:38	18,223	628,486,747	575,401,000	25,972,000	2,367,488
37	Feb 11, 2026 19:32	18,224	634,052,689	577,365,000	24,015,000	2,457,600
38	Feb 11, 2026 19:34	18,227	627,926,643	575,517,000	25,978,000	2,269,184
39	Feb 11, 2026 19:32	18,229	629,301,422	576,567,000	24,981,000	2,453,504
40	Feb 11, 2026 19:29	18,230	625,106,756	576,615,000	24,983,000	2,510,848
41	Feb 11, 2026 19:30	18,230	624,319,514	576,619,000	24,983,000	2,465,792
42	Feb 11, 2026 19:29	18,231	630,537,445	576,638,000	24,984,000	2,519,040
43	Feb 11, 2026 19:32	18,236	625,237,936	576,787,000	24,990,000	2,461,696
44	Feb 11, 2026 19:34	18,237	624,448,493	575,825,000	25,992,000	2,277,376
45	Feb 11, 2026 19:37	18,242	632,247,383	575,972,000	25,998,000	2,457,600
46	Feb 11, 2026 19:29	18,245	624,452,103	578,090,000	24,003,000	2,478,080
47	Feb 11, 2026 19:30	18,248	630,184,525	577,188,000	25,008,000	2,314,240
48	Feb 11, 2026 19:37	18,248	629,692,609	579,180,000	23,007,000	2,310,144
49	Feb 11, 2026 19:32	18,250	628,334,284	577,246,000	25,010,000	2,424,832
50	Feb 11, 2026 19:30	18,252	632,878,751	577,312,000	25,013,000	2,449,408
51	Feb 11, 2026 19:41	18,253	629,331,017	576,386,000	25,972,000	2,453,504
52	Feb 11, 2026 19:38	18,257	627,041,193	576,502,000	25,977,000	2,367,488
53	Feb 11, 2026 19:41	18,257	628,490,088	576,515,000	25,978,000	2,461,696
54	Feb 11, 2026 19:28	18,263	629,736,072	576,692,000	25,986,000	2,277,376
55	Feb 11, 2026 19:37	18,263	628,810,276	577,695,000	24,986,000	2,375,680
56	Feb 11, 2026 19:38	18,266	624,748,745	576,787,000	25,990,000	2,445,312
57	Feb 11, 2026 19:30	18,266	630,352,075	576,800,000	25,991,000	2,449,408
58	Feb 11, 2026 19:34	18,269	629,915,358	578,871,000	23,994,000	2,449,408
59	Feb 11, 2026 19:32	18,274	627,080,463	577,037,000	26,001,000	2,437,120
60	Feb 11, 2026 19:29	18,275	631,161,108	578,063,000	25,002,000	2,453,504
61	Feb 11, 2026 19:28	18,275	632,260,777	579,080,000	24,003,000	2,404,352
62	Feb 11, 2026 19:41	18,275	626,613,266	577,084,000	26,003,000	2,326,528
63	Feb 11, 2026 19:41	18,276	634,651,990	579,096,000	24,003,000	2,461,696
64	Feb 11, 2026 19:28	18,278	627,856,751	577,174,000	26,007,000	2,392,064
65	Feb 11, 2026 19:32	18,278	635,323,556	578,180,000	25,007,000	2,453,504
66	Feb 11, 2026 19:30	18,282	631,529,645	580,332,000	22,973,000	2,342,912
67	Feb 11, 2026 19:38	18,288	634,016,744	578,532,000	24,979,000	2,461,696
68	Feb 11, 2026 19:30	18,289	631,303,610	579,556,000	23,981,000	2,449,408
69	Feb 11, 2026 19:32	18,308	631,893,620	579,153,000	25,006,000	2,297,856
70	Feb 11, 2026 19:41	18,309	631,528,843	580,183,000	24,007,000	2,277,376
71	Feb 11, 2026 19:30	18,313	631,635,619	579,317,000	25,013,000	2,449,408
72	Feb 11, 2026 19:41	18,317	630,801,516	577,488,000	26,976,000	2,453,504
73	Feb 11, 2026 19:30	18,318	631,425,432	577,518,000	26,977,000	2,318,336
74	Feb 11, 2026 19:41	18,321	630,762,745	578,613,000	25,982,000	2,277,376
75	Feb 11, 2026 19:30	18,322	625,283,541	579,640,000	24,984,000	2,453,504
76	Feb 11, 2026 19:32	18,350	633,923,931	580,573,000	24,981,000	2,449,408
77	Feb 11, 2026 19:37	18,362	631,277,452	578,951,000	26,997,000	2,314,240
78	Feb 11, 2026 19:37	18,371	633,755,488	581,235,000	25,010,000	2,375,680

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