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 listJan 3, 2026 10:33

zielajScore: 3,187Success

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 3, 2026 10:30	3,084	133,569,279	99,770,000	1,995,000	2,420,736
2	Jan 3, 2026 10:31	3,100	126,191,516	100,300,000	2,006,000	2,412,544
3	Jan 3, 2026 10:30	3,107	128,302,996	100,533,000	2,010,000	2,416,640
4	Jan 4, 2026 04:27	3,116	138,834,868	100,821,000	1,996,000	2,412,544
5	Jan 3, 2026 10:46	3,124	124,112,320	101,100,000	2,001,000	2,412,544
6	Jan 3, 2026 10:46	3,128	122,310,962	101,222,000	2,004,000	2,535,424
7	Jan 3, 2026 10:31	3,129	123,806,797	101,244,000	2,004,000	2,535,424
8	Jan 3, 2026 10:30	3,137	130,005,699	102,513,000	1,005,000	2,535,424
9	Jan 4, 2026 04:27	3,139	137,430,995	102,593,000	1,005,000	2,510,848
10	Jan 3, 2026 10:30	3,146	131,841,456	101,822,000	1,996,000	2,535,424
11	Jan 3, 2026 10:31	3,146	136,601,771	102,804,000	998,000	2,273,280
12	Jan 3, 2026 10:31	3,150	128,639,451	101,937,000	1,998,000	2,420,736
13	Jan 3, 2026 10:30	3,164	123,921,056	102,392,000	2,007,000	2,416,640
14	Jan 3, 2026 10:31	3,171	133,353,220	103,630,000	1,006,000	2,273,280
15	Jan 3, 2026 10:33	3,175	132,855,071	102,786,000	1,995,000	2,412,544
16	Jan 3, 2026 10:30	3,175	131,484,138	102,789,000	1,995,000	2,412,544
17	Jan 3, 2026 10:35	3,176	126,179,090	104,810,000	0	2,502,656
18	Jan 4, 2026 17:23	3,179	127,674,384	103,910,000	999,000	2,531,328
19	Jan 3, 2026 10:47	3,187	127,080,716	103,170,000	2,003,000	2,424,832
20	Jan 4, 2026 17:23	3,199	130,946,514	104,574,000	1,005,000	2,330,624
21	Jan 3, 2026 10:31	3,201	127,666,902	105,648,000	0	2,531,328
22	Jan 3, 2026 10:30	3,206	128,541,209	103,791,000	1,995,000	2,416,640
23	Jan 3, 2026 10:31	3,206	137,621,208	102,797,000	2,994,000	2,424,832
24	Jan 4, 2026 17:23	3,208	126,265,984	103,866,000	1,997,000	2,535,424
25	Jan 3, 2026 10:35	3,209	133,926,733	104,912,000	999,000	2,273,280
26	Jan 3, 2026 10:30	3,219	128,649,491	103,229,000	3,006,000	2,420,736
27	Jan 3, 2026 10:30	3,220	125,080,186	105,272,000	1,002,000	2,412,544
28	Jan 3, 2026 10:35	3,224	128,913,861	104,385,000	2,007,000	2,273,280
29	Jan 3, 2026 10:31	3,236	129,186,951	103,801,000	2,994,000	2,269,184
30	Jan 3, 2026 10:46	3,238	126,000,680	103,849,000	2,995,000	2,273,280
31	Jan 3, 2026 10:31	3,249	128,818,968	105,224,000	2,004,000	2,424,832
32	Jan 4, 2026 04:27	3,251	133,687,378	105,280,000	2,005,000	2,416,640
33	Jan 3, 2026 10:47	3,256	133,659,898	105,428,000	2,008,000	2,273,280
34	Jan 3, 2026 10:33	3,259	133,259,920	105,550,000	2,010,000	2,535,424
35	Jan 3, 2026 10:47	3,296	136,751,690	106,786,000	1,996,000	2,273,280
36	Jan 3, 2026 10:33	3,304	130,878,913	106,024,000	3,000,000	2,273,280

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