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 29, 2026 13:06	Saif Al-Harthi	CPPg++10.5.0	Success	19,350+24.82 RP
Jun 29, 2026 12:54	Saif Al-Harthi	CPPg++10.5.0	Success	20,326+123.86 RP
Jun 29, 2026 12:41	Saif Al-Harthi	CPPg++13.3.0	Success	27,165+150.47 RP
Jun 29, 2026 12:24	Saif Al-Harthi	CPPg++10.5.0	Success	45,945+16.45 RP
Jun 29, 2026 12:21	Saif Al-Harthi	CPPg++13.3.0	Success	49,702+201.20 RP
Jun 29, 2026 11:50	Adam Folwarczny	CPPclang++20.1.2	Success	13,349
Jun 29, 2026 11:22	Adam Folwarczny	CPPclang++20.1.2	Success	11,653
Jun 29, 2026 11:18	Adam Folwarczny	CPPg++14.2.0	Success	11,523
Jun 29, 2026 11:16	Adam Folwarczny	CPPg++14.2.0	Success	11,547
Jun 29, 2026 11:01	Adam Folwarczny	CPPg++14.2.0	Success	23,098
Jun 29, 2026 10:27	Adam Folwarczny	CPPg++14.2.0	Success	15,416
Jun 29, 2026 10:07	Adam Folwarczny	CPPg++14.2.0	Success	14,988
Jun 29, 2026 10:03	Adam Folwarczny	CPPg++14.2.0	Success	22,999
Jun 29, 2026 09:34	Adam Folwarczny	CPPg++14.2.0	Success	14,285
Jun 29, 2026 09:24	Victor Mercklé	CPPg++14.2.0	Success	4,562
Jun 29, 2026 09:24	Adam Folwarczny	CPPg++14.2.0	Success	14,253
Jun 29, 2026 09:16	Victor Mercklé	CPPg++14.2.0	Success	4,657
Jun 29, 2026 09:11	Victor Mercklé	CPPg++14.2.0	Success	4,431
Jun 29, 2026 09:10	Adam Folwarczny	CPPg++14.2.0	Success	13,940
Jun 29, 2026 08:48	Adam Folwarczny	CPPg++14.2.0	Success	16,168
Jun 29, 2026 08:41	Adam Folwarczny	CPPg++14.2.0	Success	11,752
Jun 29, 2026 08:38	Adam Folwarczny	CPPg++14.2.0	Error
Jun 29, 2026 08:32	Adam Folwarczny	CPPg++14.2.0	Success	15,348
Jun 29, 2026 08:28	Victor Mercklé	CPPg++14.2.0	Success	12,034
Jun 29, 2026 08:28	Adam Folwarczny	CPPg++14.2.0	Error
Jun 29, 2026 08:21	Adam Folwarczny	CPPg++14.2.0	Error
Jun 29, 2026 08:15	Adam Folwarczny	CPPg++14.2.0	Success	55,903
Jun 29, 2026 08:14	Adam Folwarczny	CPPg++10.5.0	Success	56,794
Jun 29, 2026 08:13	Victor Mercklé	CPPg++14.2.0	Success	7,315
Jun 29, 2026 08:12	Adam Folwarczny	CPPg++14.2.0	Error
Jun 29, 2026 08:08	Adam Folwarczny	CPPg++14.2.0	Success	49,868
Jun 29, 2026 08:07	Adam Folwarczny	CPPg++10.5.0	Success	48,848
Jun 29, 2026 07:57	Victor Mercklé	CPPg++14.2.0	Success	4,869
Jun 29, 2026 07:39	Victor Mercklé	CPPg++14.2.0	Success	4,242
Jun 29, 2026 07:01	Victor Mercklé	CPPg++14.2.0	Success	12,256
Jun 29, 2026 06:18	Victor Mercklé	CPPg++14.2.0	Success	11,882
Jun 29, 2026 05:28	Victor Mercklé	CPPg++14.2.0	Success	4,783
Jun 29, 2026 04:42	Victor Mercklé	CPPg++14.2.0	Success	4,219
Jun 29, 2026 03:50	Victor Mercklé	CPPg++14.2.0	Success	5,087
Jun 29, 2026 03:21	Victor Mercklé	CPPg++14.2.0	Success	47,493
Jun 29, 2026 03:14	Victor Mercklé	CPPg++14.2.0	Success	4,209
Jun 29, 2026 02:48	Victor Mercklé	CPPg++14.2.0	Success	5,122
Jun 29, 2026 02:28	Victor Mercklé	CPPg++14.2.0	Success	15,361
Jun 29, 2026 02:13	Victor Mercklé	CPPg++14.2.0	Success	5,436
Jun 29, 2026 01:54	Victor Mercklé	CPPg++14.2.0	Success	4,281
Jun 29, 2026 01:11	Victor Mercklé	CPPg++14.2.0	Success	4,160
Jun 29, 2026 01:03	Victor Mercklé	CPPg++14.2.0	Success	4,495
Jun 29, 2026 00:12	Victor Mercklé	CPPg++14.2.0	Success	10,317
Jun 28, 2026 23:46	Victor Mercklé	CPPg++14.2.0	Success	5,135
Jun 28, 2026 23:18	Victor Mercklé	CPPg++14.2.0	Success	9,252
Jun 28, 2026 22:07	Victor Mercklé	CPPg++14.2.0	Success	17,962
Jun 28, 2026 19:54	Victor Mercklé	CPPg++14.2.0	Success	44,938
Jun 28, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	4,913
Jun 28, 2026 19:25	Victor Mercklé	CPPg++14.2.0	Success	5,740
Jun 28, 2026 18:16	gle	CPPg++14.2.0	Success	43,134+3.67 RP
Jun 28, 2026 18:07	gle	CPPg++13.3.0	Success	45,007
Jun 28, 2026 18:04	gle	CPPg++14.2.0	Success	43,828+36.91 RP
Jun 28, 2026 17:50	Victor Mercklé	CPPg++14.2.0	Success	4,191
Jun 28, 2026 17:46	gle	CPPg++14.2.0	Success	52,287+78.97 RP
Jun 28, 2026 16:43	Daniel Mastalerz	CPPclang++20.1.2	Success	6,049
Jun 28, 2026 15:47	Bill Blum	CPPg++10.5.0	Success	89,142+112.18 RP
Jun 28, 2026 13:46	Victor Mercklé	CPPg++14.2.0	Success	4,466
Jun 28, 2026 13:35	Victor Mercklé	CPPg++14.2.0	Success	5,187
Jun 28, 2026 09:24	Victor Mercklé	CPPg++14.2.0	Success	4,166
Jun 28, 2026 09:19	Victor Mercklé	CPPg++14.2.0	Success	6,838
Jun 28, 2026 09:00	A_Shaman	CPPg++10.5.0	Success	36,996+3.68 RP
Jun 28, 2026 08:55	A_Shaman	CPPg++10.5.0	Success	48,225
Jun 28, 2026 08:49	A_Shaman	CPPg++10.5.0	Success	40,078
Jun 28, 2026 08:31	gle	CPPg++10.5.0	Success	89,059+112.29 RP
Jun 28, 2026 07:29	Shikhar Soni	CPPg++13.3.0	Success	10,908
Jun 28, 2026 07:29	Shikhar Soni	CPPclang++20.1.2	Success	9,662
Jun 28, 2026 07:28	Shikhar Soni	CPPclang++18.1.3	Success	8,890+88.70 RP
Jun 28, 2026 07:24	Shikhar Soni	CPPclang++18.1.3	Success	9,651+255.10 RP
Jun 28, 2026 07:20	Shikhar Soni	CPPclang++18.1.3	Success	12,803+87.35 RP
Jun 28, 2026 07:16	Shikhar Soni	CPPclang++18.1.3	Success	14,415+573.31 RP
Jun 28, 2026 03:40	Victor Mercklé	CPPg++14.2.0	Success	4,179
Jun 28, 2026 03:15	Victor Mercklé	CPPg++14.2.0	Success	4,164
Jun 28, 2026 00:37	A_Shaman	CPPg++10.5.0	Success	53,550
Jun 28, 2026 00:33	A_Shaman	CPPg++10.5.0	Success	38,259
Jun 28, 2026 00:29	A_Shaman	CPPg++10.5.0	Success	55,675
Jun 27, 2026 23:42	A_Shaman	CPPg++10.5.0	Success	38,993
Jun 27, 2026 23:38	A_Shaman	CPPg++10.5.0	Error
Jun 27, 2026 23:32	A_Shaman	CPPg++10.5.0	Success	44,535
Jun 27, 2026 19:23	adamtassier	CPPg++10.5.0	Success	89,020+112.33 RP
Jun 27, 2026 16:12	Victor Mercklé	ZIG0.16.0	Error
Jun 27, 2026 16:07	Victor Mercklé	ZIG0.16.0	Error
Jun 27, 2026 15:22	Daniel Mastalerz	CPPclang++20.1.2	Success	5,770
Jun 27, 2026 15:08	Daniel Mastalerz	CPPclang++20.1.2	Error	+27.27 RP
Jun 27, 2026 15:02	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 14:42	Victor Mercklé	RUSTrust-1.95.0	Error
Jun 27, 2026 13:45	Victor Mercklé	CSHARP10.0.7	Error
Jun 27, 2026 13:40	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 13:32	Daniel Mastalerz	CPPclang++20.1.2	Error	+133.41 RP
Jun 27, 2026 13:30	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 13:29	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 13:28	Daniel Mastalerz	CPPg++10.5.0	Error
Jun 27, 2026 13:25	Daniel Mastalerz	CPPclang++18.1.3	Error
Jun 27, 2026 13:25	Daniel Mastalerz	CPPclang++19.1.1	Error
Jun 27, 2026 13:22	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 12:39	Daniel Mastalerz	CPPclang++20.1.2	Error

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