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	1:20.1.2-0ubuntu1~24.04.2	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.

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wnScore: 4,139Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 14, 2026 02:57	4,036	51,841,080	32,480,000	1,015,000	2,531,328
2	Apr 14, 2026 02:57	4,048	57,463,353	32,582,000	1,018,000	2,494,464
3	Apr 14, 2026 02:56	4,049	62,956,739	32,587,000	1,018,000	2,494,464
4	Apr 14, 2026 05:28	4,057	63,106,568	32,655,000	1,020,000	2,277,376
5	Apr 14, 2026 05:27	4,065	58,074,740	31,753,000	1,984,000	2,490,368
6	Apr 14, 2026 05:27	4,073	57,325,843	31,822,000	1,988,000	2,494,464
7	Apr 14, 2026 02:55	4,074	58,195,409	31,824,000	1,989,000	2,277,376
8	Apr 14, 2026 05:28	4,076	61,439,457	31,843,000	1,990,000	2,498,560
9	Apr 14, 2026 02:56	4,076	61,009,076	31,841,000	1,990,000	2,277,376
10	Apr 14, 2026 05:28	4,078	57,127,365	31,854,000	1,990,000	2,277,376
11	Apr 14, 2026 05:27	4,081	54,562,267	31,883,000	1,992,000	2,277,376
12	Apr 14, 2026 02:57	4,081	59,248,171	31,878,000	1,992,000	2,494,464
13	Apr 14, 2026 02:55	4,082	56,628,879	31,887,000	1,992,000	2,486,272
14	Apr 14, 2026 05:27	4,121	54,190,518	32,193,000	2,012,000	2,531,328
15	Apr 14, 2026 02:56	4,127	53,926,625	33,249,000	1,007,000	2,486,272
16	Apr 14, 2026 02:56	4,139	54,261,922	33,344,000	1,010,000	2,277,376
17	Apr 14, 2026 05:27	4,167	65,169,351	33,569,000	1,017,000	2,277,376
18	Apr 14, 2026 05:26	4,169	63,099,354	33,588,000	1,017,000	2,490,368
19	Apr 14, 2026 02:55	4,174	61,150,092	33,627,000	1,019,000	2,277,376
20	Apr 14, 2026 02:55	4,181	61,199,196	33,680,000	1,020,000	2,277,376
21	Apr 14, 2026 05:27	4,196	62,969,004	33,833,000	995,000	2,277,376
22	Apr 14, 2026 05:27	4,206	57,640,806	32,916,000	1,994,000	2,277,376
23	Apr 14, 2026 05:27	4,238	56,862,162	33,168,000	2,010,000	2,498,560
24	Apr 14, 2026 05:26	4,258	56,293,290	34,329,000	1,009,000	2,535,424
25	Apr 14, 2026 02:56	4,259	58,021,997	34,338,000	1,009,000	2,277,376
26	Apr 14, 2026 02:56	4,265	55,863,310	34,390,000	1,011,000	2,486,272
27	Apr 14, 2026 05:26	4,273	59,269,705	34,453,000	1,013,000	2,277,376
28	Apr 14, 2026 05:27	4,279	56,601,318	34,503,000	1,014,000	2,490,368
29	Apr 14, 2026 02:55	4,282	59,467,663	34,526,000	1,015,000	2,277,376
30	Apr 14, 2026 02:55	4,678	68,442,302	36,835,000	1,991,000	2,490,368

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