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 listMar 16, 2026 11:47

Eric CeglieScore: 8,904Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 16, 2026 12:07	8,806	96,819,081	70,087,000	3,003,000	2,506,752
2	Mar 16, 2026 13:24	8,806	95,390,814	70,089,000	3,003,000	2,289,664
3	Mar 16, 2026 13:26	8,808	97,533,812	70,105,000	3,004,000	2,289,664
4	Mar 16, 2026 13:26	8,811	96,015,738	71,132,000	2,003,000	2,289,664
5	Mar 16, 2026 13:24	8,818	101,172,301	70,181,000	3,007,000	2,498,560
6	Mar 16, 2026 13:26	8,818	96,217,802	71,182,000	2,005,000	2,506,752
7	Mar 16, 2026 12:07	8,830	96,255,802	70,281,000	3,012,000	2,289,664
8	Mar 16, 2026 13:26	8,831	96,415,472	71,289,000	2,008,000	2,289,664
9	Mar 16, 2026 13:24	8,831	99,139,108	71,289,000	2,008,000	2,355,200
10	Mar 16, 2026 12:07	8,832	98,978,834	71,301,000	2,008,000	2,289,664
11	Mar 16, 2026 13:26	8,834	96,003,728	70,307,000	3,013,000	2,289,664
12	Mar 16, 2026 13:24	8,840	97,503,819	72,367,000	1,005,000	2,498,560
13	Mar 16, 2026 11:47	8,841	99,915,352	70,369,000	3,015,000	2,506,752
14	Mar 16, 2026 13:24	8,844	99,848,791	71,397,000	2,011,000	2,289,664
15	Mar 16, 2026 13:24	8,846	102,601,566	71,408,000	2,011,000	2,428,928
16	Mar 16, 2026 12:07	8,847	103,456,290	70,415,000	3,017,000	2,506,752
17	Mar 16, 2026 13:24	8,852	96,044,769	70,455,000	3,019,000	2,498,560
18	Mar 16, 2026 13:26	8,862	93,950,008	71,538,000	2,015,000	2,502,656
19	Mar 16, 2026 13:26	8,870	98,017,351	71,606,000	2,017,000	2,502,656
20	Mar 16, 2026 12:07	8,904	99,193,517	70,906,000	2,996,000	2,281,472
21	Mar 16, 2026 13:26	8,913	99,790,935	71,975,000	1,999,000	2,289,664
22	Mar 16, 2026 13:26	8,920	100,169,471	71,036,000	3,001,000	2,289,664
23	Mar 16, 2026 13:24	8,921	102,014,973	72,042,000	2,001,000	2,289,664
24	Mar 16, 2026 13:24	8,921	98,332,496	72,044,000	2,001,000	2,289,664
25	Mar 16, 2026 13:26	8,927	102,754,774	71,087,000	3,003,000	2,289,664
26	Mar 16, 2026 11:47	8,927	106,498,748	72,089,000	2,002,000	2,506,752
27	Mar 16, 2026 13:24	8,927	101,120,786	71,090,000	3,003,000	2,289,664
28	Mar 16, 2026 13:26	8,928	94,518,915	72,100,000	2,002,000	2,494,464
29	Mar 16, 2026 12:07	8,936	95,447,172	72,166,000	2,004,000	2,506,752
30	Mar 16, 2026 13:26	8,937	98,183,968	72,173,000	2,004,000	2,289,664
31	Mar 16, 2026 12:07	8,937	99,128,003	72,173,000	2,004,000	2,289,664
32	Mar 16, 2026 11:47	8,937	100,709,556	71,167,000	3,007,000	2,289,664
33	Mar 16, 2026 13:24	8,944	94,355,757	72,229,000	2,006,000	2,289,664
34	Mar 16, 2026 13:26	8,946	98,639,428	72,243,000	2,006,000	2,289,664
35	Mar 16, 2026 12:07	8,956	96,710,970	71,321,000	3,013,000	2,289,664
36	Mar 16, 2026 13:26	8,957	98,264,615	72,335,000	2,009,000	2,490,368
37	Mar 16, 2026 12:07	8,961	95,513,466	73,371,000	1,005,000	2,506,752
38	Mar 16, 2026 13:24	8,972	97,822,167	72,456,000	2,012,000	2,289,664
39	Mar 16, 2026 13:26	8,987	103,223,161	72,577,000	2,016,000	2,289,664

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