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 19, 2025 13:43

Rajarshi Basu

Score: 6,029

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	Dec 19, 2025 13:42	5,966	223,669,363	191,886,000	4,997,000	2,510,848
2	Dec 19, 2025 13:43	5,970	214,449,244	191,012,000	6,000,000	2,371,584
3	Dec 19, 2025 13:41	5,978	217,861,769	190,272,000	7,010,000	2,351,104
4	Dec 19, 2025 13:41	5,978	228,803,890	193,253,000	4,005,000	2,519,040
5	Dec 19, 2025 13:41	5,981	225,636,105	193,367,000	4,007,000	2,514,944
6	Dec 19, 2025 13:43	5,987	224,806,096	190,590,000	6,984,000	2,506,752
7	Dec 19, 2025 13:41	5,988	227,058,588	191,617,000	5,988,000	2,502,656
8	Dec 19, 2025 13:43	5,989	224,779,864	190,636,000	6,986,000	2,330,624
9	Dec 19, 2025 13:42	5,996	227,177,398	191,882,000	5,996,000	2,519,040
10	Dec 19, 2025 13:42	6,000	220,449,674	194,011,000	4,000,000	2,514,944
11	Dec 19, 2025 13:43	6,001	225,573,353	193,045,000	5,001,000	2,506,752
12	Dec 19, 2025 13:43	6,002	219,544,359	193,074,000	5,001,000	2,428,928
13	Dec 19, 2025 13:42	6,004	219,809,148	194,133,000	4,002,000	2,523,136
14	Dec 19, 2025 13:43	6,004	220,146,262	192,118,000	6,003,000	2,514,944
15	Dec 19, 2025 13:41	6,008	222,169,592	193,252,000	5,006,000	2,523,136
16	Dec 19, 2025 13:43	6,008	222,530,642	192,249,000	6,007,000	2,461,696
17	Dec 19, 2025 13:42	6,012	228,436,253	193,377,000	5,009,000	2,514,944
18	Dec 19, 2025 13:43	6,014	226,448,576	194,469,000	3,989,000	2,441,216
19	Dec 19, 2025 13:41	6,021	221,526,156	192,709,000	5,990,000	2,318,336
20	Dec 19, 2025 13:42	6,021	222,709,408	194,692,000	3,993,000	2,510,848
21	Dec 19, 2025 13:43	6,025	224,867,712	194,826,000	3,996,000	2,285,568
22	Dec 19, 2025 13:43	6,027	222,672,449	193,909,000	4,997,000	2,408,448
23	Dec 19, 2025 13:43	6,027	220,690,396	196,894,000	1,998,000	2,437,120
24	Dec 19, 2025 13:43	6,028	224,641,777	193,936,000	4,998,000	2,441,216
25	Dec 19, 2025 13:43	6,029	222,195,615	193,969,000	4,999,000	2,396,160
26	Dec 19, 2025 13:43	6,029	220,467,672	192,946,000	5,998,000	2,510,848
27	Dec 19, 2025 13:41	6,030	223,938,125	193,991,000	4,999,000	2,510,848
28	Dec 19, 2025 13:42	6,031	220,490,417	195,032,000	4,000,000	2,424,832
29	Dec 19, 2025 13:42	6,036	221,849,250	195,188,000	4,003,000	2,301,952
30	Dec 19, 2025 13:42	6,037	221,150,120	193,203,000	6,006,000	2,289,664
31	Dec 19, 2025 13:43	6,038	225,230,688	193,234,000	6,007,000	2,523,136
32	Dec 19, 2025 13:41	6,039	228,662,472	195,295,000	4,006,000	2,494,464
33	Dec 19, 2025 13:43	6,042	232,337,463	193,390,000	5,981,000	2,281,472
34	Dec 19, 2025 13:43	6,045	230,038,025	192,501,000	6,981,000	2,490,368
35	Dec 19, 2025 13:42	6,047	232,470,123	193,574,000	5,986,000	2,514,944
36	Dec 19, 2025 13:43	6,049	224,263,282	195,616,000	3,992,000	2,301,952
37	Dec 19, 2025 13:42	6,050	224,519,093	191,651,000	7,985,000	2,269,184
38	Dec 19, 2025 13:41	6,050	223,058,929	194,654,000	4,991,000	2,514,944
39	Dec 19, 2025 13:42	6,065	222,795,843	195,156,000	5,004,000	2,519,040
40	Dec 19, 2025 13:43	6,071	227,346,840	193,344,000	7,012,000	2,342,912
41	Dec 19, 2025 13:43	6,076	222,985,616	196,533,000	3,990,000	2,514,944
42	Dec 19, 2025 13:42	6,077	231,880,521	195,540,000	4,988,000	2,420,736
43	Dec 19, 2025 13:42	6,092	221,839,003	197,030,000	4,000,000	2,367,488
44	Dec 19, 2025 13:42	6,111	225,120,867	195,680,000	5,990,000	2,281,472
45	Dec 19, 2025 13:42	6,177	229,908,651	196,831,000	6,994,000	2,514,944
46	Dec 19, 2025 13:42	6,225	235,771,952	198,445,000	6,980,000	2,523,136
47	Dec 19, 2025 13:42	6,228	229,470,774	200,548,000	4,988,000	2,301,952
48	Dec 19, 2025 13:43	6,232	227,269,563	200,672,000	4,991,000	2,437,120

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