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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Eric CeglieScore: 8,911Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 15, 2026 19:48	8,792	98,596,467	70,978,000	1,999,000	2,289,664
2	Mar 16, 2026 10:35	8,794	95,862,812	70,989,000	1,999,000	2,502,656
3	Mar 16, 2026 12:07	8,800	95,085,306	70,037,000	3,001,000	2,502,656
4	Mar 15, 2026 19:48	8,804	97,191,436	70,070,000	3,003,000	2,498,560
5	Mar 16, 2026 13:24	8,805	94,012,618	70,080,000	3,003,000	2,289,664
6	Mar 16, 2026 13:24	8,810	95,908,916	72,121,000	1,001,000	2,289,664
7	Mar 16, 2026 12:07	8,813	102,208,996	70,140,000	3,006,000	2,289,664
8	Mar 15, 2026 19:48	8,821	95,810,744	71,210,000	2,005,000	2,490,368
9	Mar 16, 2026 13:24	8,822	97,160,060	71,215,000	2,006,000	2,289,664
10	Mar 16, 2026 12:07	8,824	95,256,958	71,235,000	2,006,000	2,498,560
11	Mar 16, 2026 10:35	8,827	95,920,707	70,250,000	3,010,000	2,506,752
12	Mar 16, 2026 13:24	8,827	98,128,584	71,256,000	2,007,000	2,289,664
13	Mar 15, 2026 19:48	8,830	95,262,639	70,274,000	3,011,000	2,347,008
14	Mar 15, 2026 19:48	8,830	96,067,271	72,285,000	1,003,000	2,289,664
15	Mar 16, 2026 13:24	8,834	96,102,936	70,310,000	3,013,000	2,289,664
16	Mar 16, 2026 11:20	8,843	103,904,348	73,397,000	0	2,502,656
17	Mar 16, 2026 13:24	8,849	93,294,028	71,438,000	2,012,000	2,506,752
18	Mar 16, 2026 13:24	8,854	94,569,963	71,477,000	2,013,000	2,289,664
19	Mar 16, 2026 12:07	8,861	104,152,233	71,533,000	2,015,000	2,289,664
20	Mar 16, 2026 13:24	8,910	96,483,652	71,957,000	1,998,000	2,289,664
21	Mar 16, 2026 13:24	8,910	101,633,311	70,957,000	2,998,000	2,506,752
22	Mar 15, 2026 19:48	8,910	97,994,937	70,955,000	2,998,000	2,289,664
23	Mar 16, 2026 11:20	8,911	99,945,034	71,962,000	1,998,000	2,289,664
24	Mar 16, 2026 12:07	8,913	95,203,359	71,978,000	1,999,000	2,498,560
25	Mar 16, 2026 13:24	8,918	103,191,417	72,018,000	2,000,000	2,289,664
26	Mar 16, 2026 13:24	8,918	103,019,736	72,019,000	2,000,000	2,289,664
27	Mar 16, 2026 11:47	8,925	99,431,226	71,077,000	3,003,000	2,506,752
28	Mar 16, 2026 13:24	8,926	101,143,400	72,083,000	2,002,000	2,289,664
29	Mar 15, 2026 19:48	8,927	98,183,624	71,091,000	3,003,000	2,498,560
30	Mar 16, 2026 11:02	8,930	98,000,949	73,118,000	1,001,000	2,289,664
31	Mar 16, 2026 13:24	8,931	98,688,202	71,125,000	3,005,000	2,506,752
32	Mar 16, 2026 13:24	8,934	99,444,549	72,152,000	2,004,000	2,289,664
33	Mar 16, 2026 12:07	8,934	96,387,671	71,150,000	3,006,000	2,502,656
34	Mar 16, 2026 12:07	8,936	96,856,200	72,167,000	2,004,000	2,486,272
35	Mar 16, 2026 11:47	8,942	98,484,527	73,217,000	1,002,000	2,494,464
36	Mar 15, 2026 19:48	8,961	102,163,044	71,360,000	3,015,000	2,289,664
37	Mar 16, 2026 11:20	8,963	97,999,208	72,383,000	2,010,000	2,289,664
38	Mar 16, 2026 10:35	8,965	101,292,583	71,392,000	3,016,000	2,289,664
39	Mar 16, 2026 13:24	8,966	93,235,897	72,407,000	2,011,000	2,498,560
40	Mar 16, 2026 12:07	8,967	100,741,417	71,406,000	3,017,000	2,289,664
41	Mar 16, 2026 11:02	8,968	92,817,486	72,424,000	2,011,000	2,285,568
42	Mar 16, 2026 11:02	8,975	101,775,848	72,478,000	2,013,000	2,289,664
43	Mar 15, 2026 19:48	8,975	94,341,601	73,484,000	1,006,000	2,506,752
44	Mar 16, 2026 12:07	9,008	105,614,886	73,772,000	996,000	2,289,664
45	Mar 16, 2026 11:47	9,022	99,763,907	71,885,000	2,995,000	2,502,656

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