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 listOct 28, 2025 02:01

Weitao Wan

Score: 37,909

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 28, 2025 02:00	36,797	331,001,170	305,418,000	0	2,265,088
2	Oct 28, 2025 02:03	36,816	337,677,340	304,577,000	998,000	2,514,944
3	Oct 28, 2025 02:00	36,816	329,880,303	303,579,000	1,997,000	2,523,136
4	Oct 28, 2025 02:00	36,823	330,763,535	303,636,000	1,997,000	2,514,944
5	Oct 28, 2025 02:03	36,825	330,656,342	305,645,000	0	2,510,848
6	Oct 28, 2025 02:05	36,828	332,544,518	305,674,000	0	2,289,664
7	Oct 28, 2025 02:00	36,828	330,234,063	305,676,000	0	2,514,944
8	Oct 28, 2025 02:07	36,828	330,835,988	303,675,000	1,997,000	2,289,664
9	Oct 28, 2025 02:01	36,840	327,346,364	303,773,000	1,998,000	2,289,664
10	Oct 28, 2025 02:05	36,843	330,075,642	304,799,000	999,000	2,523,136
11	Oct 28, 2025 02:00	36,846	328,297,075	302,825,000	2,998,000	2,285,568
12	Oct 28, 2025 02:00	36,848	330,159,664	303,843,000	1,998,000	2,289,664
13	Oct 28, 2025 02:03	36,849	335,985,915	302,851,000	2,998,000	2,281,472
14	Oct 28, 2025 02:06	36,850	339,859,651	303,854,000	1,999,000	2,523,136
15	Oct 28, 2025 02:00	36,911	328,622,067	303,365,000	2,993,000	2,523,136
16	Oct 28, 2025 02:03	36,946	331,573,497	304,658,000	1,997,000	2,289,664
17	Oct 28, 2025 02:00	37,892	340,641,578	313,499,000	1,001,000	2,289,664
18	Oct 28, 2025 02:03	37,896	340,225,282	312,537,000	1,997,000	2,281,472
19	Oct 28, 2025 02:06	37,908	345,453,706	314,639,000	0	2,281,472
20	Oct 28, 2025 02:06	37,909	339,896,465	312,651,000	1,997,000	2,289,664
21	Oct 28, 2025 02:01	37,911	343,539,552	312,666,000	1,997,000	2,289,664
22	Oct 28, 2025 02:01	37,911	342,789,624	312,665,000	1,997,000	2,289,664
23	Oct 28, 2025 02:06	37,911	338,975,296	312,667,000	1,997,000	2,289,664
24	Oct 28, 2025 02:00	37,911	342,766,994	313,660,000	998,000	2,289,664
25	Oct 28, 2025 02:03	37,913	344,061,856	312,683,000	1,997,000	2,289,664
26	Oct 28, 2025 02:01	37,913	344,518,114	313,676,000	998,000	2,289,664
27	Oct 28, 2025 02:03	37,914	335,818,511	312,687,000	1,998,000	2,514,944
28	Oct 28, 2025 02:07	37,915	336,740,877	313,690,000	1,002,000	2,289,664
29	Oct 28, 2025 02:01	37,920	339,054,723	312,735,000	1,998,000	2,289,664
30	Oct 28, 2025 02:01	37,920	337,056,935	312,738,000	1,998,000	2,281,472
31	Oct 28, 2025 02:07	37,921	338,035,090	312,746,000	1,998,000	2,514,944
32	Oct 28, 2025 02:06	37,922	339,477,325	312,751,000	1,998,000	2,289,664
33	Oct 28, 2025 02:03	37,929	338,185,575	313,811,000	999,000	2,347,008
34	Oct 28, 2025 02:03	37,936	337,853,650	312,873,000	1,999,000	2,269,184
35	Oct 28, 2025 02:06	37,939	339,088,973	312,894,000	1,999,000	2,289,664
36	Oct 28, 2025 02:01	37,943	338,019,604	311,924,000	2,999,000	2,281,472
37	Oct 28, 2025 02:05	37,945	338,054,124	312,947,000	1,999,000	2,281,472
38	Oct 28, 2025 02:01	38,449	342,639,061	317,123,000	2,000,000	2,281,472
39	Oct 28, 2025 02:01	38,453	344,432,210	317,160,000	2,001,000	2,289,664

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