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 14, 2026 23:15

Josu San MartinScore: 4,314Success

Source Code

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 14, 2026 23:22	4,295	164,398,968	139,710,000	2,010,000	2,387,968
2	Jan 14, 2026 23:19	4,296	168,057,750	140,786,000	998,000	2,289,664
3	Jan 14, 2026 23:27	4,300	163,806,800	140,906,000	999,000	2,400,256
4	Jan 14, 2026 23:24	4,300	164,201,998	139,900,000	1,998,000	2,289,664
5	Jan 14, 2026 23:19	4,300	166,309,086	139,905,000	1,998,000	2,404,352
6	Jan 14, 2026 23:22	4,301	165,860,331	139,937,000	1,999,000	2,289,664
7	Jan 14, 2026 23:24	4,301	169,142,961	140,931,000	999,000	2,289,664
8	Jan 14, 2026 23:24	4,301	173,218,375	139,935,000	1,999,000	2,289,664
9	Jan 14, 2026 23:19	4,301	168,921,629	139,925,000	1,998,000	2,396,160
10	Jan 14, 2026 23:36	4,301	169,819,262	140,933,000	999,000	2,289,664
11	Jan 14, 2026 23:19	4,301	167,336,908	140,946,000	999,000	2,289,664
12	Jan 14, 2026 23:27	4,302	162,510,643	137,966,000	3,999,000	2,510,848
13	Jan 14, 2026 23:17	4,302	165,322,328	139,971,000	1,999,000	2,510,848
14	Jan 14, 2026 23:28	4,303	166,195,003	140,992,000	999,000	2,392,064
15	Jan 14, 2026 23:17	4,303	166,011,477	139,989,000	1,999,000	2,289,664
16	Jan 14, 2026 23:24	4,304	174,583,793	141,034,000	1,000,000	2,482,176
17	Jan 14, 2026 23:22	4,305	174,834,238	140,066,000	2,000,000	2,404,352
18	Jan 14, 2026 23:24	4,305	166,371,291	141,078,000	1,000,000	2,289,664
19	Jan 14, 2026 23:25	4,306	165,206,177	140,101,000	2,001,000	2,404,352
20	Jan 14, 2026 23:19	4,306	168,356,383	140,087,000	2,001,000	2,289,664
21	Jan 14, 2026 23:20	4,306	164,817,549	140,105,000	2,001,000	2,289,664
22	Jan 14, 2026 23:22	4,307	170,943,690	139,136,000	3,002,000	2,400,256
23	Jan 14, 2026 23:36	4,307	164,777,520	140,143,000	2,002,000	2,400,256
24	Jan 14, 2026 23:19	4,307	164,466,023	140,125,000	2,001,000	2,289,664
25	Jan 14, 2026 23:24	4,308	171,235,515	140,155,000	2,002,000	2,387,968
26	Jan 14, 2026 23:28	4,308	167,847,680	141,178,000	1,001,000	2,285,568
27	Jan 14, 2026 23:17	4,308	166,575,136	140,148,000	2,002,000	2,289,664
28	Jan 14, 2026 23:17	4,308	176,586,334	141,163,000	1,001,000	2,400,256
29	Jan 14, 2026 23:17	4,308	165,955,339	141,168,000	1,001,000	2,510,848
30	Jan 14, 2026 23:17	4,309	162,815,925	140,191,000	2,002,000	2,506,752
31	Jan 14, 2026 23:19	4,309	163,439,947	139,189,000	3,004,000	2,281,472
32	Jan 14, 2026 23:22	4,309	162,991,472	140,200,000	2,002,000	2,404,352
33	Jan 14, 2026 23:19	4,309	164,187,771	141,188,000	1,001,000	2,396,160
34	Jan 14, 2026 23:28	4,309	167,627,463	140,202,000	2,002,000	2,289,664
35	Jan 14, 2026 23:24	4,310	172,155,519	142,231,000	0	2,404,352
36	Jan 14, 2026 23:19	4,311	166,182,891	141,263,000	1,001,000	2,289,664
37	Jan 14, 2026 23:24	4,312	169,528,860	141,283,000	1,002,000	2,289,664
38	Jan 14, 2026 23:20	4,313	164,842,454	141,333,000	1,002,000	2,494,464
39	Jan 14, 2026 23:24	4,313	170,464,318	141,313,000	1,002,000	2,289,664
40	Jan 14, 2026 23:36	4,314	165,602,204	141,356,000	1,002,000	2,289,664
41	Jan 14, 2026 23:20	4,314	170,011,756	141,354,000	1,002,000	2,289,664
42	Jan 14, 2026 23:20	4,314	165,176,099	140,364,000	2,005,000	2,289,664
43	Jan 14, 2026 23:17	4,315	172,708,895	142,400,000	0	2,289,664
44	Jan 14, 2026 23:25	4,316	170,447,589	141,438,000	996,000	2,289,664
45	Jan 14, 2026 23:22	4,316	171,888,325	141,414,000	1,002,000	2,289,664
46	Jan 14, 2026 23:27	4,317	178,464,494	141,456,000	1,003,000	2,400,256
47	Jan 14, 2026 23:19	4,317	168,928,496	139,464,000	2,988,000	2,289,664
48	Jan 14, 2026 23:17	4,318	177,058,696	142,485,000	0	2,289,664
49	Jan 14, 2026 23:19	4,321	175,069,651	141,607,000	997,000	2,289,664
50	Jan 14, 2026 23:17	4,323	172,482,091	142,673,000	0	2,387,968
51	Jan 14, 2026 23:24	4,323	170,505,694	138,660,000	3,990,000	2,289,664
52	Jan 14, 2026 23:24	4,323	174,865,882	140,664,000	1,995,000	2,289,664
53	Jan 14, 2026 23:25	4,323	170,231,971	140,668,000	1,995,000	2,289,664
54	Jan 14, 2026 23:20	4,326	172,381,504	140,774,000	1,996,000	2,392,064
55	Jan 14, 2026 23:26	4,341	168,744,281	141,235,000	2,003,000	2,289,664
56	Jan 14, 2026 23:26	4,344	171,680,665	141,335,000	2,004,000	2,289,664
57	Jan 14, 2026 23:26	4,344	173,908,902	140,378,000	2,986,000	2,289,664
58	Jan 14, 2026 23:19	4,424	173,981,760	144,985,000	999,000	2,400,256
59	Jan 14, 2026 23:24	4,463	178,283,589	147,277,000	0	2,400,256
60	Jan 14, 2026 23:26	4,474	178,169,230	146,658,000	997,000	2,289,664
61	Jan 14, 2026 23:26	4,477	172,120,233	145,753,000	1,996,000	2,400,256
62	Jan 14, 2026 23:26	4,480	172,809,148	144,844,000	2,996,000	2,510,848
63	Jan 14, 2026 23:26	4,480	173,424,199	143,850,000	3,995,000	2,289,664
64	Jan 14, 2026 23:26	4,481	172,017,253	144,874,000	2,997,000	2,396,160
65	Jan 14, 2026 23:26	4,482	168,292,392	146,899,000	999,000	2,400,256
66	Jan 14, 2026 23:23	4,493	174,652,683	147,271,000	1,001,000	2,289,664
67	Jan 14, 2026 23:23	4,496	177,627,892	148,373,000	0	2,289,664
68	Jan 14, 2026 23:23	4,497	177,000,665	146,394,000	1,991,000	2,289,664
69	Jan 14, 2026 23:20	4,537	171,373,569	144,736,000	4,990,000	2,289,664
70	Jan 14, 2026 23:23	4,648	178,723,654	153,385,000	0	2,404,352
71	Jan 14, 2026 23:23	4,655	180,878,606	150,623,000	2,992,000	2,289,664
72	Jan 14, 2026 23:23	4,660	182,421,733	150,772,000	2,995,000	2,289,664
73	Jan 14, 2026 23:26	8,171	296,559,836	268,649,000	998,000	2,289,664
74	Jan 14, 2026 23:26	8,325	300,132,607	272,737,000	1,998,000	2,396,160
75	Jan 14, 2026 23:18	9,205	326,005,884	301,771,000	1,998,000	2,289,664
76	Jan 14, 2026 23:18	9,222	335,388,263	303,315,000	997,000	2,289,664
77	Jan 14, 2026 23:18	9,243	327,405,906	304,017,000	1,000,000	2,289,664
78	Jan 14, 2026 23:26	9,276	326,352,794	305,111,000	1,000,000	2,289,664
79	Jan 14, 2026 23:15	9,642	347,714,813	314,186,000	4,002,000	2,289,664
80	Jan 14, 2026 23:15	9,705	343,616,397	313,269,000	7,006,000	2,367,488
81	Jan 14, 2026 23:15	9,752	347,987,755	318,818,000	2,998,000	2,371,584

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