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 10, 2026 14:48

Danylo Mocherniuk

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Source Code

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Challenge History

Date	Challenger	Cost	Type	Status
Jul 7, 2026 21:50	Adam Folwarczny	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Jul 7, 2026 21:52	0	342,514,611	311,051,000	21,177,000	2,117,632	expected "27617841214539459 ", got "286610852144841851 "	stderr
2	Jul 7, 2026 21:52	0	340,602,166	307,954,000	22,385,000	2,117,632	expected "27617841214539459 ", got "286610852144841851 "	stderr
3	Jul 7, 2026 21:52	0	344,531,254	311,767,000	22,424,000	2,117,632	expected "27617841214539459 ", got "286610852144841851 "	stderr
4	Apr 11, 2026 10:09	4,462	61,727,172	35,035,000	2,002,000	2,400,256
5	Apr 11, 2026 10:09	4,469	59,173,634	35,087,000	2,005,000	2,396,160
6	Apr 10, 2026 14:38	4,477	59,813,359	34,144,000	3,012,000	2,510,848
7	Apr 10, 2026 14:38	4,488	58,062,647	35,238,000	2,013,000	2,396,160
8	Apr 10, 2026 14:48	4,493	54,436,074	35,274,000	2,015,000	2,297,856
9	Apr 10, 2026 14:38	4,494	60,404,243	35,282,000	2,016,000	2,396,160
10	Apr 11, 2026 10:09	4,506	64,011,020	35,377,000	2,021,000	2,392,064
11	Apr 10, 2026 14:38	4,508	63,504,637	36,403,000	1,011,000	2,383,872
12	Apr 10, 2026 14:38	4,534	63,817,776	36,617,000	1,017,000	2,297,856
13	Apr 10, 2026 14:38	4,537	64,962,906	36,638,000	1,017,000	2,297,856
14	Apr 11, 2026 10:09	4,558	63,302,860	35,839,000	1,991,000	2,392,064
15	Apr 11, 2026 10:09	4,558	66,172,806	36,840,000	995,000	2,502,656
16	Apr 10, 2026 14:48	4,560	64,610,666	35,858,000	1,992,000	2,383,872
17	Apr 10, 2026 14:48	4,576	61,147,826	35,983,000	1,999,000	2,396,160
18	Apr 10, 2026 14:48	4,612	66,522,309	35,259,000	3,022,000	2,297,856
19	Apr 10, 2026 14:48	4,618	61,411,791	36,313,000	2,017,000	2,297,856
20	Apr 10, 2026 14:38	4,629	64,966,418	35,388,000	3,033,000	2,297,856
21	Apr 11, 2026 10:09	4,636	60,404,414	36,453,000	2,025,000	2,297,856
22	Apr 10, 2026 14:48	4,638	63,539,164	35,459,000	3,039,000	2,490,368
23	Apr 10, 2026 14:38	4,650	66,960,355	37,578,000	1,015,000	2,297,856
24	Apr 10, 2026 14:48	4,680	64,821,581	36,855,000	1,992,000	2,387,968
25	Apr 11, 2026 10:09	4,685	60,089,146	36,889,000	1,994,000	2,338,816
26	Apr 10, 2026 14:38	4,687	70,515,181	35,910,000	2,992,000	2,297,856
27	Apr 10, 2026 14:48	4,696	59,683,739	35,977,000	2,998,000	2,473,984
28	Apr 11, 2026 10:09	4,710	61,027,215	38,092,000	1,002,000	2,379,776
29	Apr 11, 2026 10:09	4,731	61,323,588	37,258,000	2,013,000	2,383,872
30	Apr 11, 2026 10:09	4,747	61,687,496	38,390,000	1,010,000	2,297,856
31	Apr 11, 2026 10:09	4,756	61,420,810	36,439,000	3,036,000	2,297,856
32	Apr 10, 2026 14:48	4,759	60,851,768	36,461,000	3,038,000	2,387,968
33	Apr 11, 2026 10:09	4,762	61,697,687	38,514,000	1,013,000	2,400,256
34	Apr 11, 2026 10:09	4,765	63,484,681	38,536,000	1,014,000	2,297,856
35	Apr 10, 2026 14:48	4,800	72,244,367	36,850,000	2,987,000	2,514,944
36	Apr 10, 2026 14:48	4,808	62,941,611	38,907,000	997,000	2,297,856
37	Apr 11, 2026 10:09	4,810	64,041,608	36,926,000	2,994,000	2,297,856
38	Apr 11, 2026 10:09	4,810	66,772,611	36,930,000	2,994,000	2,416,640
39	Apr 10, 2026 14:48	5,093	76,796,328	38,247,000	4,026,000	2,424,832

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