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: 4,283Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 14, 2026 18:50	4,235	55,102,202	33,146,000	2,008,000	2,273,280
2	Mar 14, 2026 18:46	4,255	62,810,233	34,308,000	1,009,000	2,273,280
3	Mar 14, 2026 18:50	4,257	60,209,171	34,324,000	1,009,000	2,498,560
4	Mar 14, 2026 18:46	4,261	56,113,205	34,359,000	1,010,000	2,273,280
5	Mar 14, 2026 18:51	4,261	62,862,673	34,353,000	1,010,000	2,494,464
6	Mar 14, 2026 18:49	4,263	58,024,163	34,370,000	1,010,000	2,273,280
7	Mar 14, 2026 18:51	4,264	53,687,098	34,382,000	1,011,000	2,527,232
8	Mar 14, 2026 18:51	4,265	60,749,694	34,387,000	1,011,000	2,490,368
9	Mar 14, 2026 18:51	4,268	55,351,277	34,412,000	1,012,000	2,273,280
10	Mar 14, 2026 18:46	4,269	56,822,755	34,418,000	1,012,000	2,273,280
11	Mar 14, 2026 18:46	4,269	53,842,429	34,424,000	1,012,000	2,494,464
12	Mar 14, 2026 18:50	4,269	55,587,892	34,423,000	1,012,000	2,273,280
13	Mar 14, 2026 18:46	4,271	56,729,443	34,435,000	1,012,000	2,273,280
14	Mar 14, 2026 18:50	4,276	55,126,022	34,478,000	1,014,000	2,273,280
15	Mar 14, 2026 18:50	4,281	62,132,613	34,521,000	1,015,000	2,273,280
16	Mar 14, 2026 18:51	4,283	62,531,390	34,531,000	1,015,000	2,273,280
17	Mar 14, 2026 18:50	4,283	53,940,056	34,537,000	1,015,000	2,273,280
18	Mar 14, 2026 18:49	4,288	59,112,885	34,573,000	1,016,000	2,273,280
19	Mar 14, 2026 18:46	4,291	64,024,330	34,598,000	1,017,000	2,273,280
20	Mar 14, 2026 18:49	4,295	62,422,876	34,632,000	1,018,000	2,490,368
21	Mar 14, 2026 18:46	4,298	60,148,833	34,658,000	1,019,000	2,494,464
22	Mar 14, 2026 18:51	4,317	62,414,362	33,838,000	1,990,000	2,273,280
23	Mar 14, 2026 18:46	4,318	60,446,700	33,847,000	1,991,000	2,490,368
24	Mar 14, 2026 18:46	4,324	60,738,419	33,899,000	1,994,000	2,273,280
25	Mar 14, 2026 18:51	4,327	62,395,336	33,917,000	1,995,000	2,273,280
26	Mar 14, 2026 18:51	4,345	57,876,861	34,064,000	2,003,000	2,273,280
27	Mar 14, 2026 18:45	4,391	62,992,299	35,431,000	1,012,000	2,273,280
28	Mar 14, 2026 18:45	4,392	57,507,081	35,445,000	1,012,000	2,498,560
29	Mar 14, 2026 18:50	4,405	57,678,672	35,545,000	1,015,000	2,494,464
30	Mar 14, 2026 18:50	4,416	66,793,495	35,632,000	1,018,000	2,494,464
31	Mar 14, 2026 18:50	4,419	64,165,278	35,663,000	1,018,000	2,498,560
32	Mar 14, 2026 18:45	4,511	67,048,833	36,432,000	1,012,000	2,486,272
33	Mar 14, 2026 18:51	4,678	61,298,655	36,836,000	1,991,000	2,527,232

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