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
Oct 29, 2025 23:11	Alexander Kovalyov	CPPg++13.3.0	Success	57,866
Oct 29, 2025 23:04	Alexander Kovalyov	CPPg++13.3.0	Success	57,815
Oct 29, 2025 23:00	Alexander Kovalyov	CPPg++13.3.0	Success	56,902
Oct 29, 2025 22:57	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 22:46	Alexander Kovalyov	CPPg++13.3.0	Success	52,573
Oct 29, 2025 22:40	Alexander Kovalyov	CPPg++13.3.0	Success	52,563+3.44 RP
Oct 29, 2025 22:22	Alexander Kovalyov	CPPg++13.3.0	Success	53,532+17.50 RP
Oct 29, 2025 22:21	Anton Razmakhnin	CSHARP9.0.10	Success	233,442
Oct 29, 2025 22:08	Alexander Kovalyov	CPPg++13.3.0	Success	59,067+150.43 RP
Oct 29, 2025 21:51	Alexander Kovalyov	CPPg++13.3.0	Success	529,877+14.03 RP
Oct 29, 2025 21:49	Anton Razmakhnin	CSHARP9.0.10	Success	225,170+17.07 RP
Oct 29, 2025 21:44	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:43	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:37	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:28	Alexander Kovalyov	CPPg++13.3.0	Success	2,066,016+4.84 RP
Oct 29, 2025 20:46	syncname	GOgo1.25.3	Success	74,023+76.72 RP
Oct 29, 2025 20:28	syncname	GOgo1.25.3	Success	171,311+58.37 RP
Oct 29, 2025 18:37	Savemaker	GOgo1.25.3	Success	273,474+36.57 RP
Oct 29, 2025 16:31	Max Lyuchin	GOgo1.25.3	Success	273,350+36.58 RP
Oct 29, 2025 15:33	Anton Razmakhnin	CSHARP9.0.10	Success	1,335,921
Oct 29, 2025 14:01	Anton Razmakhnin	CSHARP9.0.10	Error
Oct 29, 2025 13:49	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:41	Anton Razmakhnin	CSHARP9.0.10	Success	365,755+27.34 RP
Oct 29, 2025 13:40	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:39	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:35	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:18	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:08	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:05	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 12:31	eandr-67	GOgo1.25.3	Error
Oct 29, 2025 11:48	eandr-67	GOgo1.25.3	Error
Oct 29, 2025 11:19	eandr-67	GOgo1.25.3	Success	272,793
Oct 29, 2025 11:19	eandr-67	GOgo1.25.3	Success	272,395+0.13 RP
Oct 29, 2025 11:17	eandr-67	GOgo1.25.3	Success	273,348+36.58 RP
Oct 29, 2025 10:39	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 10:15	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 08:41	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 05:49	Weitao Wan	CPPclang++18.1.3	Success	78,631
Oct 29, 2025 00:29	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 12:06	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 12:05	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 12:04	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 12:03	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 12:03	Tejas G.	CPPclang++18.1.3	Error
Oct 28, 2025 04:50	Tan Lip Wei	CPPg++13.3.0	Success	31,194
Oct 28, 2025 04:47	Tan Lip Wei	CPPg++13.3.0	Success	34,592
Oct 28, 2025 04:45	Tan Lip Wei	CPPg++13.3.0	Success	33,598
Oct 28, 2025 04:44	Tan Lip Wei	CPPg++13.3.0	Success	31,188
Oct 28, 2025 04:44	Tan Lip Wei	CPPg++13.3.0	Error
Oct 28, 2025 04:41	Tan Lip Wei	CPPg++13.3.0	Error
Oct 28, 2025 04:39	Tan Lip Wei	CPPg++13.3.0	Error
Oct 28, 2025 02:01	Weitao Wan	CPPg++13.3.0	Success	37,909
Oct 28, 2025 01:59	Weitao Wan	CPPg++13.3.0	Success	37,037
Oct 28, 2025 01:58	Weitao Wan	CPPg++13.3.0	Error
Oct 28, 2025 01:56	Weitao Wan	CPPg++13.3.0	Success	37,022
Oct 28, 2025 01:56	Weitao Wan	CPPclang++18.1.3	Success	71,783
Oct 27, 2025 16:54	Weitao Wan	CPPclang++18.1.3	Success	33,631+41.33 RP
Oct 27, 2025 16:31	Weitao Wan	CPPclang++18.1.3	Error
Oct 27, 2025 16:30	Weitao Wan	CPPclang++18.1.3	Error
Oct 27, 2025 16:23	Weitao Wan	CPPg++13.3.0	Success	41,068
Oct 27, 2025 16:20	Weitao Wan	CPPg++13.3.0	Success	44,460
Oct 27, 2025 15:35	Weitao Wan	CPPg++13.3.0	Success	259,900
Oct 27, 2025 15:33	Weitao Wan	CPPg++13.3.0	Success	259,529
Oct 27, 2025 11:04	Weitao Wan	CPPclang++18.1.3	Success	39,061+0.24 RP
Oct 27, 2025 10:03	Tan Lip Wei	CPPg++13.3.0	Success	31,445
Oct 27, 2025 10:02	Tan Lip Wei	CPPg++13.3.0	Error
Oct 27, 2025 10:01	Tan Lip Wei	CPPg++13.3.0	Error
Oct 27, 2025 10:00	Tan Lip Wei	CPPg++13.3.0	Error
Oct 27, 2025 09:55	Tan Lip Wei	CPPg++13.3.0	Success	39,179
Oct 27, 2025 09:51	Tan Lip Wei	CPPg++13.3.0	Success	34,376
Oct 27, 2025 09:51	Tan Lip Wei	CPPclang++18.1.3	Success	33,827
Oct 27, 2025 09:30	Tan Lip Wei	CPPclang++18.1.3	Success	32,552
Oct 27, 2025 09:30	Tan Lip Wei	CPPg++13.3.0	Success	32,147
Oct 27, 2025 09:26	Tan Lip Wei	CPPg++13.3.0	Success	30,819
Oct 27, 2025 09:25	Tan Lip Wei	CPPg++13.3.0	Success	35,393
Oct 27, 2025 08:08	Weitao Wan	CPPclang++18.1.3	Success	39,915
Oct 27, 2025 08:02	Weitao Wan	CPPclang++18.1.3	Error
Oct 27, 2025 08:00	Weitao Wan	CPPclang++18.1.3	Success	39,098+12.72 RP
Oct 27, 2025 08:00	Weitao Wan	CPPg++13.3.0	Success	41,145+0.48 RP
Oct 27, 2025 07:59	Weitao Wan	CPPg++13.3.0	Success	41,289
Oct 27, 2025 07:55	Weitao Wan	CPPg++13.3.0	Success	41,226+3.15 RP
Oct 27, 2025 07:53	Weitao Wan	CPPg++13.3.0	Success	41,769+10.63 RP
Oct 27, 2025 07:52	Weitao Wan	CPPg++13.3.0	Error
Oct 27, 2025 07:49	Weitao Wan	CPPg++13.3.0	Success	43,709+75.95 RP
Oct 27, 2025 07:45	Weitao Wan	CPPg++13.3.0	Success	65,428+0.64 RP
Oct 27, 2025 06:38	Weitao Wan	CPPg++13.3.0	Success	67,791
Oct 27, 2025 05:41	Weitao Wan	CPPg++13.3.0	Success	65,702+13.61 RP
Oct 27, 2025 05:40	Weitao Wan	CPPg++13.3.0	Error
Oct 27, 2025 04:44	Tan Lip Wei	CPPg++13.3.0	Success	30,805+3.31 RP
Oct 27, 2025 04:43	Tan Lip Wei	CPPg++13.3.0	Success	31,122+15.16 RP
Oct 27, 2025 04:37	Tan Lip Wei	CPPg++13.3.0	Success	32,667
Oct 27, 2025 04:36	Tan Lip Wei	CPPclang++18.1.3	Success	42,247
Oct 27, 2025 04:34	Tan Lip Wei	CPPg++13.3.0	Success	33,850
Oct 27, 2025 04:24	Tan Lip Wei	CPPg++13.3.0	Error
Oct 27, 2025 04:15	Tan Lip Wei	CPPg++13.3.0	Success	32,663+10.26 RP
Oct 27, 2025 04:15	Tan Lip Wei	CPPg++13.3.0	Error
Oct 27, 2025 04:13	Tan Lip Wei	CPPg++13.3.0	Success	33,796+61.37 RP
Oct 27, 2025 04:13	Tan Lip Wei	CPPclang++18.1.3	Success	42,640+2.09 RP
Oct 27, 2025 04:12	Tan Lip Wei	CPPclang++18.1.3	Success	43,058
Oct 27, 2025 04:12	Tan Lip Wei	CPPclang++18.1.3	Success	43,773

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