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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Ham-HamScore: 51,104Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 25, 2025 10:03	51,056	448,996,859	421,766,000	1,998,000	2,273,280
2	Nov 25, 2025 10:04	51,060	444,176,808	421,802,000	1,999,000	2,273,280
3	Nov 25, 2025 10:03	51,060	451,028,991	421,796,000	1,999,000	2,486,272
4	Nov 25, 2025 12:39	51,066	446,623,208	421,850,000	1,999,000	2,535,424
5	Nov 25, 2025 10:03	51,066	462,586,541	421,852,000	1,999,000	2,535,424
6	Nov 25, 2025 10:04	51,072	450,650,877	421,902,000	1,999,000	2,535,424
7	Nov 25, 2025 10:03	51,072	444,115,343	422,896,000	999,000	2,490,368
8	Nov 25, 2025 10:03	51,073	446,573,010	422,907,000	999,000	2,494,464
9	Nov 25, 2025 12:42	51,082	442,896,468	422,978,000	999,000	2,273,280
10	Nov 25, 2025 10:05	51,086	447,467,582	423,015,000	1,000,000	2,273,280
11	Nov 25, 2025 10:03	51,089	451,982,575	423,039,000	1,000,000	2,494,464
12	Nov 25, 2025 10:03	51,093	450,142,623	423,072,000	1,000,000	2,535,424
13	Nov 25, 2025 12:42	51,093	445,877,909	423,070,000	1,000,000	2,273,280
14	Nov 25, 2025 10:03	51,098	447,076,129	423,111,000	1,000,000	2,273,280
15	Nov 25, 2025 10:03	51,100	448,120,700	423,128,000	1,000,000	2,535,424
16	Nov 25, 2025 10:03	51,104	447,942,035	423,163,000	1,000,000	2,498,560
17	Nov 25, 2025 10:03	51,109	446,946,099	423,205,000	998,000	2,531,328
18	Nov 25, 2025 10:05	51,114	446,275,260	423,250,000	1,000,000	2,494,464
19	Nov 25, 2025 10:03	51,147	456,025,188	422,526,000	1,997,000	2,273,280
20	Nov 25, 2025 12:39	51,155	448,254,749	422,591,000	1,998,000	2,482,176
21	Nov 25, 2025 10:03	51,172	449,813,345	422,733,000	1,998,000	2,498,560
22	Nov 25, 2025 10:05	51,359	452,649,299	425,277,000	1,000,000	2,502,656
23	Nov 25, 2025 10:03	51,371	451,636,010	424,385,000	1,997,000	2,490,368
24	Nov 25, 2025 10:04	51,375	451,548,678	425,416,000	1,000,000	2,531,328
25	Nov 25, 2025 10:03	51,386	451,717,141	424,507,000	1,997,000	2,273,280
26	Nov 25, 2025 10:03	51,390	453,902,684	425,537,000	998,000	2,273,280
27	Nov 25, 2025 12:42	51,392	453,174,442	424,554,000	1,997,000	2,490,368
28	Nov 25, 2025 10:03	51,396	452,403,159	425,589,000	999,000	2,535,424
29	Nov 25, 2025 12:39	51,431	447,894,373	424,877,000	1,999,000	2,531,328
30	Nov 25, 2025 10:03	51,444	450,930,952	425,990,000	999,000	2,490,368

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