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.

Back to listJan 2, 2026 17:02

Josu San Martin

Score: 5,938

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 2, 2026 17:00	5,768	77,278,303	45,883,000	1,994,000	2,289,664
2	Jan 2, 2026 17:00	5,775	72,398,071	45,937,000	1,997,000	2,367,488
3	Jan 2, 2026 17:00	5,800	75,945,531	46,132,000	2,005,000	2,289,664
4	Jan 2, 2026 17:01	5,806	73,555,548	46,182,000	2,007,000	2,289,664
5	Jan 2, 2026 17:00	5,855	74,140,779	47,584,000	1,012,000	2,289,664
6	Jan 2, 2026 17:01	5,863	75,647,332	48,667,000	0	2,363,392
7	Jan 2, 2026 17:02	5,863	73,207,769	47,653,000	1,013,000	2,363,392
8	Jan 2, 2026 17:00	5,884	75,617,298	45,848,000	2,990,000	2,514,944
9	Jan 2, 2026 17:00	5,884	78,066,342	47,824,000	1,017,000	2,293,760
10	Jan 2, 2026 17:02	5,884	74,508,860	47,840,000	996,000	2,289,664
11	Jan 2, 2026 17:01	5,886	75,636,055	48,854,000	0	2,371,584
12	Jan 2, 2026 17:00	5,906	80,881,153	47,018,000	2,000,000	2,277,376
13	Jan 2, 2026 17:00	5,909	76,612,151	47,046,000	2,001,000	2,355,200
14	Jan 2, 2026 17:00	5,917	83,502,784	48,108,000	1,002,000	2,293,760
15	Jan 2, 2026 17:00	5,917	76,306,907	48,110,000	1,002,000	2,293,760
16	Jan 2, 2026 17:02	5,938	71,716,681	47,274,000	2,011,000	2,293,760
17	Jan 2, 2026 17:00	5,962	72,605,739	48,478,000	1,009,000	2,293,760
18	Jan 2, 2026 17:02	5,972	79,694,218	49,571,000	0	2,289,664
19	Jan 2, 2026 17:00	6,001	76,690,598	48,811,000	996,000	2,473,984
20	Jan 2, 2026 17:01	6,003	78,260,810	48,827,000	996,000	2,293,760
21	Jan 2, 2026 17:01	6,010	79,939,668	47,890,000	1,995,000	2,289,664
22	Jan 2, 2026 17:02	6,013	77,155,203	47,912,000	1,996,000	2,371,584
23	Jan 2, 2026 17:00	6,029	81,084,255	48,042,000	2,001,000	2,367,488
24	Jan 2, 2026 17:00	6,035	77,819,562	48,086,000	2,003,000	2,367,488
25	Jan 2, 2026 17:00	6,037	70,434,537	48,107,000	2,004,000	2,367,488
26	Jan 2, 2026 17:00	6,037	74,367,021	49,103,000	1,002,000	2,293,760
27	Jan 2, 2026 17:01	6,040	73,618,837	48,129,000	2,005,000	2,293,760
28	Jan 2, 2026 17:02	6,050	73,242,541	48,203,000	2,008,000	2,355,200
29	Jan 2, 2026 17:00	6,067	77,153,213	50,357,000	0	2,293,760
30	Jan 2, 2026 17:00	6,086	77,354,982	49,502,000	1,010,000	2,293,760

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