Parse integers

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Restrictions:30s512Mb 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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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 listApr 11, 2026 08:29

Danylo Mocherniuk

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Source Code

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Challenge History

Date	Challenger	Cost	Type	Status
Jul 7, 2026 02:40	Victor Mercklé	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Jul 7, 2026 02:40	0	45,844,408	34,837,000	1,295,000	2,117,632	expected "74600294196621100 ", got "40266930125142108 "	stderr
2	Jul 7, 2026 02:40	0	45,587,749	34,378,000	1,282,000	2,117,632	expected "74600294196621100 ", got "40263071092965980 "	stderr
3	Jul 7, 2026 02:40	0	56,856,017	44,741,000	1,048,000	2,117,632	expected "74600294196621100 ", got "32029411483417388 "	stderr
4	Apr 11, 2026 08:30	4,464	61,140,023	35,049,000	2,002,000	2,392,064
5	Apr 11, 2026 08:30	4,490	61,683,558	34,242,000	3,021,000	2,375,680
6	Apr 10, 2026 15:12	4,497	64,303,575	35,304,000	2,017,000	2,379,776
7	Apr 10, 2026 15:12	4,499	58,907,304	35,321,000	2,018,000	2,482,176
8	Apr 10, 2026 15:12	4,500	59,080,481	35,330,000	2,018,000	2,297,856
9	Apr 10, 2026 15:12	4,501	60,795,972	35,340,000	2,019,000	2,297,856
10	Apr 10, 2026 15:12	4,503	59,752,076	34,345,000	3,030,000	2,387,968
11	Apr 10, 2026 15:12	4,503	63,345,667	35,356,000	2,020,000	2,297,856
12	Apr 10, 2026 15:12	4,510	65,147,836	34,402,000	3,035,000	2,297,856
13	Apr 10, 2026 15:13	4,512	62,687,881	36,468,000	985,000	2,297,856
14	Apr 11, 2026 08:30	4,518	58,368,785	34,459,000	3,040,000	2,387,968
15	Apr 11, 2026 08:26	4,524	59,636,694	35,519,000	2,029,000	2,297,856
16	Apr 11, 2026 08:26	4,534	63,824,520	36,613,000	1,017,000	2,297,856
17	Apr 11, 2026 08:30	4,553	62,457,160	34,805,000	2,983,000	2,396,160
18	Apr 11, 2026 08:26	4,556	69,413,857	35,826,000	1,990,000	2,375,680
19	Apr 10, 2026 15:12	4,559	63,395,490	35,845,000	1,991,000	2,379,776
20	Apr 10, 2026 15:13	4,559	63,525,405	36,844,000	995,000	2,494,464
21	Apr 10, 2026 15:12	4,574	59,974,065	36,969,000	999,000	2,392,064
22	Apr 10, 2026 15:12	4,581	65,115,694	36,022,000	2,001,000	2,297,856
23	Apr 11, 2026 08:26	4,582	60,949,838	35,026,000	3,002,000	2,297,856
24	Apr 10, 2026 15:12	4,584	62,314,461	36,046,000	2,002,000	2,387,968
25	Apr 11, 2026 08:26	4,589	64,581,672	36,083,000	2,004,000	2,375,680
26	Apr 10, 2026 15:12	4,601	60,501,857	35,171,000	3,014,000	2,297,856
27	Apr 11, 2026 08:30	4,677	70,367,123	36,825,000	1,990,000	2,297,856
28	Apr 11, 2026 08:29	4,684	59,958,385	36,888,000	1,993,000	2,387,968
29	Apr 11, 2026 08:26	4,706	63,861,329	37,059,000	2,003,000	2,310,144
30	Apr 10, 2026 15:12	4,714	61,668,448	37,118,000	2,006,000	2,297,856
31	Apr 11, 2026 08:25	4,733	62,477,237	37,274,000	2,014,000	2,387,968
32	Apr 10, 2026 15:12	4,738	66,370,353	37,311,000	2,016,000	2,396,160
33	Apr 11, 2026 08:25	4,741	65,582,999	37,335,000	2,018,000	2,392,064
34	Apr 10, 2026 15:13	4,756	64,821,825	37,449,000	2,024,000	2,383,872
35	Apr 10, 2026 15:12	4,762	69,885,362	37,495,000	2,026,000	2,297,856
36	Apr 11, 2026 08:30	4,779	65,990,694	37,684,000	1,983,000	2,297,856
37	Apr 10, 2026 15:12	4,800	66,090,462	36,856,000	2,988,000	2,297,856
38	Apr 11, 2026 08:29	4,810	68,039,544	36,933,000	2,994,000	2,396,160
39	Apr 10, 2026 15:12	4,857	64,315,577	38,301,000	2,015,000	2,392,064
40	Apr 11, 2026 08:25	4,860	65,620,754	37,312,000	3,025,000	2,396,160
41	Apr 11, 2026 08:29	5,051	75,110,125	39,930,000	1,996,000	2,383,872
42	Apr 10, 2026 15:12	5,246	62,835,327	41,513,000	2,025,000	2,396,160

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