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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olliecrow

Score: 5,874

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 4, 2026 22:28	5,451	69,923,516	43,236,000	2,010,000	2,416,640
2	Mar 4, 2026 22:28	5,466	73,772,066	43,351,000	2,016,000	2,383,872
3	Mar 4, 2026 23:04	5,493	75,137,206	42,555,000	3,039,000	2,334,720
4	Mar 4, 2026 23:04	5,600	74,845,826	43,451,000	3,031,000	2,404,352
5	Mar 4, 2026 22:33	5,610	72,310,578	44,542,000	2,024,000	2,379,776
6	Mar 4, 2026 22:30	5,643	75,675,856	42,849,000	3,986,000	2,375,680
7	Mar 4, 2026 22:30	5,647	75,474,796	43,878,000	2,991,000	2,293,760
8	Mar 4, 2026 22:33	5,648	75,597,193	42,888,000	3,989,000	2,363,392
9	Mar 4, 2026 22:28	5,651	75,898,442	44,905,000	1,995,000	2,363,392
10	Mar 4, 2026 22:30	5,668	72,348,929	44,041,000	3,002,000	2,461,696
11	Mar 4, 2026 23:04	5,671	75,351,821	46,071,000	1,001,000	2,265,088
12	Mar 4, 2026 22:33	5,685	73,085,478	43,169,000	4,015,000	2,494,464
13	Mar 4, 2026 22:30	5,791	77,391,511	45,062,000	3,004,000	2,387,968
14	Mar 4, 2026 22:28	5,854	78,584,776	46,562,000	2,024,000	2,433,024
15	Mar 4, 2026 23:04	5,867	75,447,167	44,721,000	3,975,000	2,338,816
16	Mar 4, 2026 22:28	5,874	73,167,690	46,768,000	1,990,000	2,387,968
17	Mar 4, 2026 22:28	5,878	74,682,407	47,795,000	995,000	2,408,448
18	Mar 4, 2026 22:33	5,880	78,063,559	44,819,000	3,983,000	2,494,464
19	Mar 4, 2026 22:28	5,932	78,307,928	46,224,000	3,014,000	2,301,952
20	Mar 4, 2026 22:28	5,932	73,779,393	45,215,000	4,019,000	2,433,024
21	Mar 4, 2026 22:30	5,935	77,344,062	47,253,000	2,010,000	2,289,664
22	Mar 4, 2026 22:33	5,950	74,533,906	47,369,000	2,015,000	2,437,120
23	Mar 4, 2026 23:04	5,962	75,504,043	46,454,000	3,029,000	2,506,752
24	Mar 4, 2026 22:28	5,964	75,897,251	45,460,000	4,040,000	2,367,488
25	Mar 4, 2026 22:33	6,001	78,206,648	47,815,000	1,992,000	2,338,816
26	Mar 4, 2026 22:28	6,001	79,584,253	47,816,000	1,992,000	2,420,736
27	Mar 4, 2026 22:28	6,002	74,295,160	47,824,000	1,992,000	2,273,280
28	Mar 4, 2026 22:28	6,010	83,884,095	47,892,000	1,995,000	2,498,560
29	Mar 4, 2026 22:30	6,032	80,089,792	46,061,000	4,005,000	2,334,720
30	Mar 4, 2026 23:04	6,050	76,858,361	48,207,000	2,008,000	2,498,560

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