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
Jul 2, 2026 04:24	Victor Mercklé	CPPg++14.2.0	Success	4,156
Jul 2, 2026 03:46	Victor Mercklé	CPPg++14.2.0	Success	4,235
Jul 2, 2026 03:33	Victor Mercklé	CPPg++14.2.0	Success	4,208
Jul 2, 2026 03:02	Victor Mercklé	CPPg++14.2.0	Error	+1.16 RP
Jul 2, 2026 02:47	Victor Mercklé	CPPg++14.2.0	Success	4,244
Jul 2, 2026 02:30	Victor Mercklé	CPPg++14.2.0	Success	4,176
Jul 2, 2026 02:20	Victor Mercklé	CPPg++14.2.0	Success	4,185
Jul 2, 2026 02:12	Victor Mercklé	CPPg++14.2.0	Success	4,318
Jul 2, 2026 00:07	Victor Mercklé	CPPg++14.2.0	Success	5,043
Jul 1, 2026 22:46	Code Hints	CPPclang++20.1.2	Success	16,278
Jul 1, 2026 22:17	Code Hints	CPPclang++20.1.2	Success	10,504
Jul 1, 2026 22:07	Code Hints	CPPclang++20.1.2	Success	6,382
Jul 1, 2026 22:03	Code Hints	CPPclang++20.1.2	Success	6,184
Jul 1, 2026 21:40	Code Hints	CPPclang++20.1.2	Success	6,207
Jul 1, 2026 20:24	Victor Mercklé	CPPg++14.2.0	Success	5,161
Jul 1, 2026 20:11	Victor Mercklé	CPPg++14.2.0	Success	4,170
Jul 1, 2026 19:20	Victor Mercklé	CPPg++14.2.0	Success	10,488
Jul 1, 2026 19:07	Victor Mercklé	CPPg++14.2.0	Success	4,163
Jul 1, 2026 18:29	TragmatiS	CPPg++10.5.0	Success	364,794+2.22 RP
Jul 1, 2026 18:27	TragmatiS	CPPg++14.2.0	Success	396,912+25.19 RP
Jul 1, 2026 18:23	TragmatiS	CPPg++14.2.0	Error
Jul 1, 2026 16:52	Victor Mercklé	CPPg++14.2.0	Success	11,295
Jul 1, 2026 16:47	Victor Mercklé	CPPg++14.2.0	Success	12,544
Jul 1, 2026 08:18	Victor Mercklé	CPPg++14.2.0	Success	4,230
Jul 1, 2026 07:33	Genos0	CPPg++14.2.0	Success	77,722
Jul 1, 2026 07:33	Genos0	CPPg++10.5.0	Success	74,249
Jul 1, 2026 07:31	Genos0	CPPg++10.5.0	Success	79,123
Jul 1, 2026 07:29	Genos0	CPPg++10.5.0	Error
Jun 30, 2026 23:47	Victor Mercklé	CPPg++14.2.0	Success	4,708
Jun 30, 2026 23:25	Victor Mercklé	CPPg++14.2.0	Success	4,157
Jun 30, 2026 21:48	Adam Folwarczny	CPPg++14.2.0	Error
Jun 30, 2026 19:50	Knyukua	CPPg++10.5.0	Success	67,883+134.22 RP
Jun 30, 2026 19:12	Knyukua	CPPg++10.5.0	Success	763,520+5.17 RP
Jun 30, 2026 18:45	Genos0	CPPg++10.5.0	Error
Jun 30, 2026 18:32	Genos0	CPPg++10.5.0	Success	69,245
Jun 30, 2026 18:30	Genos0	CPPg++10.5.0	Error
Jun 30, 2026 18:21	Genos0	CPPg++10.5.0	Success	67,907
Jun 30, 2026 18:13	Genos0	CPPg++10.5.0	Error
Jun 30, 2026 18:04	Genos0	CPPg++10.5.0	Success	89,120
Jun 30, 2026 16:51	Knyukua	CPPg++10.5.0	Success	1,261,981+7.92 RP
Jun 30, 2026 16:51	Knyukua	CPPg++10.5.0	Error
Jun 30, 2026 15:56	Saif Al-Harthi	RUSTrust-1.96.0	Success	10,877+64.74 RP
Jun 30, 2026 14:50	Saif Al-Harthi	RUSTrust-1.96.0	Success	11,902
Jun 30, 2026 14:32	Saif Al-Harthi	RUSTrust-1.96.0	Success	15,092
Jun 30, 2026 13:32	Saif Al-Harthi	RUSTrust-1.96.0	Success	24,622
Jun 30, 2026 13:17	Andrey Likhachev	RUSTrust-1.78.0	Success	12,548
Jun 30, 2026 12:57	Saif Al-Harthi	RUSTrust-1.96.0	Success	21,967
Jun 30, 2026 12:21	Saif Al-Harthi	RUSTrust-1.96.0	Success	30,799
Jun 30, 2026 11:27	Adam Folwarczny	CPPg++14.2.0	Success	9,819
Jun 30, 2026 11:26	Victor Mercklé	CPPg++14.2.0	Success	4,173
Jun 30, 2026 11:15	Victor Mercklé	CPPg++14.2.0	Success	4,256
Jun 30, 2026 11:10	Victor Mercklé	CPPg++14.2.0	Success	4,379
Jun 30, 2026 10:51	Adam Folwarczny	CPPg++14.2.0	Error
Jun 30, 2026 10:50	Adam Folwarczny	CPPg++14.2.0	Success	7,446
Jun 30, 2026 10:49	Adam Folwarczny	CPPg++10.5.0	Error
Jun 30, 2026 10:45	Adam Folwarczny	CPPg++14.2.0	Error	+144.37 RP
Jun 30, 2026 10:43	Adam Folwarczny	CPPclang++20.1.2	Error	+15.69 RP
Jun 30, 2026 10:41	Adam Folwarczny	CPPclang++18.1.3	Error
Jun 30, 2026 10:40	Adam Folwarczny	CPPclang++18.1.3	Error
Jun 30, 2026 10:37	Victor Mercklé	CPPg++14.2.0	Success	4,825
Jun 30, 2026 10:25	Saif Al-Harthi	CPPg++14.2.0	Success	15,772
Jun 30, 2026 10:22	Victor Mercklé	CPPg++14.2.0	Success	21,860
Jun 30, 2026 10:11	Saif Al-Harthi	CPPg++14.2.0	Success	13,075
Jun 30, 2026 10:10	Victor Mercklé	CPPg++14.2.0	Success	4,208
Jun 30, 2026 10:10	Saif Al-Harthi	CPPg++14.2.0	Success	13,087
Jun 30, 2026 10:06	Adam Folwarczny	CPPclang++18.1.3	Error	+90.15 RP
Jun 30, 2026 10:05	Adam Folwarczny	CPPclang++18.1.3	Success	7,694
Jun 30, 2026 10:01	Victor Mercklé	CPPg++14.2.0	Success	4,166
Jun 30, 2026 09:59	Adam Folwarczny	CPPclang++18.1.3	Error	+116.94 RP
Jun 30, 2026 09:39	Adam Folwarczny	CPPclang++18.1.3	Error	+0.96 RP
Jun 30, 2026 09:32	Victor Mercklé	CPPg++14.2.0	Success	4,274
Jun 30, 2026 09:25	Victor Mercklé	CPPg++14.2.0	Success	4,361
Jun 30, 2026 09:21	Victor Mercklé	CPPg++14.2.0	Error	+2.90 RP
Jun 30, 2026 09:03	Victor Mercklé	CPPg++14.2.0	Success	11,110
Jun 30, 2026 08:57	Victor Mercklé	CPPg++14.2.0	Success	8,420
Jun 30, 2026 08:49	Victor Mercklé	CPPg++14.2.0	Success	11,663
Jun 30, 2026 08:38	Saif Al-Harthi	CPPg++14.2.0	Success	12,647
Jun 30, 2026 08:06	Saif Al-Harthi	CPPg++14.2.0	Success	12,600
Jun 30, 2026 07:41	Saif Al-Harthi	CPPg++14.2.0	Success	13,838
Jun 30, 2026 07:09	Saif Al-Harthi	CPPg++14.2.0	Success	15,268
Jun 30, 2026 06:54	Saif Al-Harthi	CPPg++14.2.0	Success	11,701+314.12 RP
Jun 30, 2026 06:48	Victor Mercklé	CPPg++14.2.0	Success	5,452
Jun 30, 2026 05:45	Saif Al-Harthi	CPPg++14.2.0	Success	22,283
Jun 30, 2026 05:45	Saif Al-Harthi	CPPg++10.5.0	Success	22,709
Jun 30, 2026 03:20	Krishna Sivakumar	CPPg++10.5.0	Success	89,048+112.30 RP
Jun 29, 2026 20:45	Adam Folwarczny	CPPg++14.2.0	Success	9,869
Jun 29, 2026 18:48	Victor Mercklé	CPPg++14.2.0	Success	4,574
Jun 29, 2026 18:30	Victor Mercklé	CPPg++14.2.0	Success	15,267
Jun 29, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	4,399
Jun 29, 2026 16:19	Alexander Stanovoy	RUSTrust-1.95.0	Success	2,652,716+3.77 RP
Jun 29, 2026 15:44	Saif Al-Harthi	CPPg++14.2.0	Success	18,635
Jun 29, 2026 14:47	Saif Al-Harthi	CPPg++14.2.0	Success	18,501+14.39 RP
Jun 29, 2026 14:34	Saif Al-Harthi	CPPg++14.2.0	Success	19,007+9.30 RP
Jun 29, 2026 14:31	Victor Mercklé	CPPg++14.2.0	Success	4,164
Jun 29, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Success	4,863
Jun 29, 2026 14:07	Adam Folwarczny	CPPclang++20.1.2	Success	8,927
Jun 29, 2026 14:00	Saif Al-Harthi	CPPg++14.2.0	Success	19,871
Jun 29, 2026 13:42	Saif Al-Harthi	CPPg++14.2.0	Success	20,184
Jun 29, 2026 13:21	Saif Al-Harthi	CPPg++14.2.0	Success	19,351
Jun 29, 2026 13:06	Saif Al-Harthi	CPPg++14.2.0	Success	19,349+0.03 RP

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