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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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.

Date	Author	Language	Status	Score
Jun 19, 2026 06:49	Victor Mercklé	CPPg++14.2.0	Success	42,696
Jun 19, 2026 06:30	Victor Mercklé	CPPg++14.2.0	Success	33,755
Jun 19, 2026 00:15	Omkar Singh	CPPg++10.5.0	Success	504,450
Jun 19, 2026 00:11	Omkar Singh	CPPg++10.5.0	Success	507,061
Jun 19, 2026 00:07	Omkar Singh	CPPg++14.2.0	Success	529,528
Jun 18, 2026 23:59	Omkar Singh	CPPg++14.2.0	Success	528,276
Jun 18, 2026 23:54	Omkar Singh	CPPg++10.5.0	Success	89,122+105.36 RP
Jun 18, 2026 23:47	Omkar Singh	CPPg++14.2.0	Success	1,460,251+6.85 RP
Jun 18, 2026 22:17	Victor Mercklé	CPPg++14.2.0	Success	22,505
Jun 18, 2026 22:02	Victor Mercklé	CPPg++14.2.0	Success	6,416
Jun 18, 2026 14:58	Victor Mercklé	CPPg++14.2.0	Success	5,212
Jun 18, 2026 14:48	Victor Mercklé	CPPg++14.2.0	Success	4,547
Jun 18, 2026 14:34	Victor Mercklé	CPPg++14.2.0	Success	22,932
Jun 18, 2026 14:29	Victor Mercklé	CPPg++14.2.0	Success	15,196
Jun 18, 2026 14:17	boop34	CPPg++10.5.0	Success	2,065,877
Jun 18, 2026 13:52	boop34	CPPg++10.5.0	Success	89,100+112.23 RP
Jun 18, 2026 03:48	Victor Mercklé	CPPg++14.2.0	Success	4,737
Jun 17, 2026 23:38	A_Shaman	CPPg++10.5.0	Success	67,045
Jun 17, 2026 23:29	A_Shaman	CPPg++10.5.0	Success	64,229+43.42 RP
Jun 17, 2026 21:48	Victor Mercklé	CPPg++14.2.0	Success	8,614
Jun 17, 2026 21:43	Victor Mercklé	CPPg++14.2.0	Success	5,563
Jun 17, 2026 21:36	Victor Mercklé	CPPg++14.2.0	Success	17,732
Jun 17, 2026 21:29	Victor Mercklé	CPPg++14.2.0	Success	4,543
Jun 17, 2026 19:27	Victor Mercklé	CPPg++14.2.0	Success	4,533
Jun 17, 2026 19:22	Victor Mercklé	CPPg++14.2.0	Success	4,543
Jun 17, 2026 19:15	Victor Mercklé	CPPg++14.2.0	Success	17,901
Jun 17, 2026 19:08	Victor Mercklé	CPPg++14.2.0	Success	22,551
Jun 17, 2026 19:00	Victor Mercklé	CPPg++14.2.0	Success	25,606
Jun 17, 2026 11:15	David	CPPg++14.2.0	Success	31,920+16.36 RP
Jun 17, 2026 11:00	David	CPPg++14.2.0	Success	41,281
Jun 17, 2026 10:54	David	CPPg++14.2.0	Error
Jun 17, 2026 10:52	David	CPPg++14.2.0	Success	60,496
Jun 17, 2026 10:49	David	CPPg++14.2.0	Success	61,245
Jun 17, 2026 09:57	David	CPPg++14.2.0	Success	40,018
Jun 17, 2026 09:44	David	CPPg++10.5.0	Success	45,327
Jun 17, 2026 09:39	David	CPPg++14.2.0	Success	40,818
Jun 17, 2026 09:35	David	CPPg++14.2.0	Success	33,679+0.09 RP
Jun 17, 2026 09:33	David	CPPg++14.2.0	Success	33,689+136.42 RP
Jun 17, 2026 09:25	David	CPPg++14.2.0	Error
Jun 17, 2026 09:23	Serge Smirnov	CPPg++14.2.0	Success	28,817+0.52 RP
Jun 17, 2026 09:22	Serge Smirnov	CPPg++10.5.0	Success	29,177
Jun 17, 2026 09:20	Serge Smirnov	CPPg++10.5.0	Success	29,034
Jun 17, 2026 09:18	David	ZIG0.15.1	Success	180,283
Jun 17, 2026 09:16	David	CPPg++10.5.0	Success	62,339+160.41 RP
Jun 17, 2026 01:03	A_Shaman	CPPg++10.5.0	Success	89,066+112.28 RP
Jun 15, 2026 08:29	Victor Mercklé	ZIG0.16.0	Success	4,576
Jun 15, 2026 08:24	Victor Mercklé	ZIG0.16.0	Success	4,590
Jun 15, 2026 08:14	Victor Mercklé	ZIG0.16.0	Success	4,570+1.91 RP
Jun 15, 2026 08:06	Victor Mercklé	ZIG0.16.0	Success	4,574+460.05 RP
Jun 12, 2026 15:33	Victor Mercklé	CPPg++14.2.0	Success	5,406
Jun 12, 2026 15:24	Victor Mercklé	CPPg++14.2.0	Success	5,433
Jun 12, 2026 15:17	Victor Mercklé	CPPg++14.2.0	Success	7,703
Jun 12, 2026 15:10	Victor Mercklé	CPPg++14.2.0	Success	7,556
Jun 12, 2026 15:05	Victor Mercklé	CPPg++14.2.0	Success	10,138
Jun 11, 2026 21:45	Victor Mercklé	RUSTrust-1.95.0	Success	4,580+1.91 RP
Jun 11, 2026 21:29	Victor Mercklé	RUSTrust-1.95.0	Success	4,584+46.12 RP
Jun 11, 2026 21:24	Victor Mercklé	RUSTrust-1.95.0	Success	55,073
Jun 11, 2026 21:19	Victor Mercklé	RUSTrust-1.95.0	Error
Jun 11, 2026 21:14	Victor Mercklé	RUSTrust-1.95.0	Error
Jun 11, 2026 20:39	kuba1803	CPPg++10.5.0	Success	392,659
Jun 11, 2026 20:38	kuba1803	CPPg++10.5.0	Error
Jun 11, 2026 20:30	kuba1803	CPPg++14.2.0	Success	392,026
Jun 11, 2026 20:13	kuba1803	CPPg++10.5.0	Success	391,793
Jun 11, 2026 20:11	kuba1803	CPPg++10.5.0	Error
Jun 11, 2026 20:03	kuba1803	CPPg++10.5.0	Success	87,127
Jun 11, 2026 19:59	kuba1803	CPPg++14.2.0	Success	81,335+122.95 RP
Jun 11, 2026 07:21	derrick20	CPPg++10.5.0	Success	88,996+112.36 RP
Jun 11, 2026 02:00	Victor Mercklé	CPPg++14.2.0	Success	6,505
Jun 11, 2026 01:50	Victor Mercklé	CPPg++14.2.0	Success	8,062
Jun 11, 2026 01:38	Victor Mercklé	CPPg++14.2.0	Success	6,586
Jun 11, 2026 01:27	Victor Mercklé	CPPg++14.2.0	Success	23,056
Jun 11, 2026 01:14	Victor Mercklé	CPPg++14.2.0	Success	17,862
Jun 11, 2026 01:05	Victor Mercklé	CPPg++14.2.0	Success	6,203
Jun 11, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	15,545
Jun 11, 2026 00:50	Victor Mercklé	CPPg++14.2.0	Success	6,174
Jun 10, 2026 16:33	Victor Mercklé	CPPg++14.2.0	Success	4,525+2.93 RP
Jun 10, 2026 16:28	Victor Mercklé	CPPg++14.2.0	Success	4,750
Jun 10, 2026 16:18	Victor Mercklé	CPPg++14.2.0	Success	7,789
Jun 10, 2026 16:08	Victor Mercklé	CPPg++14.2.0	Success	6,468
Jun 10, 2026 16:03	Victor Mercklé	CPPg++14.2.0	Success	6,126
Jun 10, 2026 15:57	Victor Mercklé	CPPg++14.2.0	Success	6,946
Jun 10, 2026 15:52	Victor Mercklé	CPPg++14.2.0	Success	6,161
Jun 10, 2026 15:47	Victor Mercklé	CPPg++14.2.0	Success	6,248
Jun 10, 2026 15:42	Victor Mercklé	CPPg++14.2.0	Success	6,289
Jun 10, 2026 15:37	Victor Mercklé	CPPg++14.2.0	Success	6,420
Jun 10, 2026 15:12	Victor Mercklé	CPPg++14.2.0	Success	6,998
Jun 10, 2026 15:07	Victor Mercklé	CPPg++14.2.0	Success	7,416
Jun 10, 2026 15:02	Victor Mercklé	CPPg++14.2.0	Success	6,700
Jun 10, 2026 14:57	Victor Mercklé	CPPg++14.2.0	Success	6,526
Jun 10, 2026 14:08	Victor Mercklé	CPPg++14.2.0	Success	4,587
Jun 10, 2026 14:03	Victor Mercklé	CPPg++14.2.0	Success	4,558
Jun 10, 2026 13:55	Victor Mercklé	CPPg++14.2.0	Success	4,590
Jun 10, 2026 13:34	Victor Mercklé	CPPg++14.2.0	Success	4,975
Jun 10, 2026 13:29	Victor Mercklé	CPPg++14.2.0	Success	8,105
Jun 10, 2026 13:22	Victor Mercklé	CPPg++14.2.0	Success	4,536
Jun 10, 2026 13:17	Victor Mercklé	CPPg++14.2.0	Success	6,192
Jun 10, 2026 13:11	Victor Mercklé	CPPg++14.2.0	Success	8,097
Jun 10, 2026 13:06	Victor Mercklé	CPPg++14.2.0	Success	8,262
Jun 10, 2026 13:01	Victor Mercklé	CPPg++14.2.0	Success	4,618
Jun 10, 2026 12:56	Victor Mercklé	CPPg++14.2.0	Success	9,035

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