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.

Date	Author	Language	Status	Score
Jun 20, 2026 09:56	Victor Mercklé	CPPg++14.2.0	Success	14,244
Jun 20, 2026 09:45	Victor Mercklé	CPPg++14.2.0	Success	14,052
Jun 20, 2026 09:40	Victor Mercklé	CPPg++14.2.0	Success	14,098
Jun 20, 2026 09:31	Victor Mercklé	CPPg++14.2.0	Success	20,681
Jun 20, 2026 09:26	Victor Mercklé	CPPg++14.2.0	Success	20,228
Jun 20, 2026 07:19	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 02:55	Victor Mercklé	CPPg++14.2.0	Success	48,208
Jun 20, 2026 02:40	Victor Mercklé	CPPg++14.2.0	Success	15,168
Jun 20, 2026 02:28	Victor Mercklé	CPPg++14.2.0	Success	7,592
Jun 19, 2026 21:51	Victor Mercklé	CPPg++14.2.0	Success	8,739
Jun 19, 2026 21:44	Victor Mercklé	CPPg++14.2.0	Success	13,069
Jun 19, 2026 21:28	Victor Mercklé	CPPg++14.2.0	Success	30,497
Jun 19, 2026 19:05	Andrey Likhachev	RUSTrust-1.78.0	Error
Jun 19, 2026 18:58	Andrey Likhachev	RUSTrust-1.78.0	Error
Jun 19, 2026 18:07	A_Shaman	CPPg++10.5.0	Success	44,461
Jun 19, 2026 18:02	A_Shaman	CPPg++10.5.0	Success	44,572
Jun 19, 2026 17:59	A_Shaman	CPPg++10.5.0	Success	43,422
Jun 19, 2026 17:56	A_Shaman	CPPg++10.5.0	Success	42,565
Jun 19, 2026 17:51	A_Shaman	CPPg++10.5.0	Success	43,263
Jun 19, 2026 17:48	A_Shaman	CPPg++10.5.0	Success	42,748
Jun 19, 2026 17:45	A_Shaman	CPPg++10.5.0	Success	45,943
Jun 19, 2026 17:41	A_Shaman	CPPg++10.5.0	Error
Jun 19, 2026 17:38	A_Shaman	CPPg++10.5.0	Success	45,157
Jun 19, 2026 17:34	A_Shaman	CPPg++10.5.0	Success	44,176
Jun 19, 2026 16:54	A_Shaman	CPPg++10.5.0	Success	48,114
Jun 19, 2026 16:51	A_Shaman	CPPg++10.5.0	Success	47,144
Jun 19, 2026 16:48	A_Shaman	CPPg++10.5.0	Success	59,022
Jun 19, 2026 16:45	A_Shaman	CPPg++10.5.0	Success	44,295
Jun 19, 2026 16:40	A_Shaman	CPPg++10.5.0	Success	52,703
Jun 19, 2026 16:36	A_Shaman	CPPg++10.5.0	Success	76,163
Jun 19, 2026 16:33	A_Shaman	CPPg++10.5.0	Success	48,703
Jun 19, 2026 16:30	A_Shaman	CPPg++10.5.0	Success	46,567
Jun 19, 2026 16:26	A_Shaman	CPPg++10.5.0	Success	61,012
Jun 19, 2026 16:23	A_Shaman	CPPg++10.5.0	Success	41,798+34.11 RP
Jun 19, 2026 16:16	A_Shaman	CPPg++10.5.0	Success	48,747+31.92 RP
Jun 19, 2026 16:12	A_Shaman	CPPg++10.5.0	Success	57,730+17.53 RP
Jun 19, 2026 16:08	A_Shaman	CPPg++10.5.0	Success	66,358
Jun 19, 2026 16:02	A_Shaman	CPPg++10.5.0	Success	64,284
Jun 19, 2026 16:02	Victor Mercklé	CPPg++14.2.0	Error
Jun 19, 2026 15:55	A_Shaman	CPPg++10.5.0	Success	78,568
Jun 19, 2026 15:50	A_Shaman	CPPg++10.5.0	Success	64,687
Jun 19, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Success	29,498
Jun 19, 2026 15:30	Victor Mercklé	CPPg++14.2.0	Success	15,100
Jun 19, 2026 15:17	Victor Mercklé	CPPg++14.2.0	Success	9,689
Jun 19, 2026 07:12	Victor Mercklé	CPPg++14.2.0	Success	4,712
Jun 19, 2026 07:06	Victor Mercklé	CPPg++14.2.0	Success	4,518+3.42 RP
Jun 19, 2026 07:01	Victor Mercklé	CPPg++14.2.0	Success	4,538
Jun 19, 2026 06:56	Victor Mercklé	CPPg++14.2.0	Success	4,545
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

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