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
Aug 7, 2026 13:46	Tony	CPPg++11.5.0	Success	7,644+7.99 RP
Aug 6, 2026 21:58	Tony	CPPg++11.5.0	Success	7,926
Aug 6, 2026 21:50	Tony	CPPg++11.5.0	Success	7,903
Aug 6, 2026 21:46	Tony	CPPg++11.5.0	Success	7,691+5.72 RP
Aug 6, 2026 21:33	Tony	CPPg++11.5.0	Error
Aug 6, 2026 21:18	Tony	CPPg++11.5.0	Success	20,344
Aug 6, 2026 21:04	Tony	CPPg++11.5.0	Success	7,921
Aug 6, 2026 20:49	Tony	CPPclang++20.1.2	Success	8,382
Aug 6, 2026 20:31	Tony	CPPclang++14.0.6	Success	7,841
Aug 6, 2026 20:23	Tony	CPPclang++20.1.2	Success	19,403
Aug 6, 2026 20:22	Tony	CPPg++11.5.0	Success	21,499
Aug 6, 2026 20:07	LatentSearch	CPPg++14.2.0	Success	96,038
Aug 6, 2026 19:23	Tony	CPPg++11.5.0	Error
Aug 6, 2026 19:22	Tony	CPPg++11.5.0	Error
Aug 6, 2026 19:14	Tony	CPPg++11.5.0	Error
Aug 6, 2026 00:58	Tony	CPPg++10.5.0	Error
Aug 6, 2026 00:49	Tony	CPPclang++19.1.1	Success	8,143
Aug 6, 2026 00:49	Tony	CPPg++13.3.0	Success	8,040
Aug 6, 2026 00:49	Tony	CPPg++12.4.0	Success	8,018
Aug 6, 2026 00:49	Tony	CPPg++11.5.0	Success	7,725+34.89 RP
Aug 6, 2026 00:39	Tony	CPPg++10.5.0	Success	7,960
Aug 6, 2026 00:33	Tony	CPPg++10.5.0	Error
Aug 6, 2026 00:08	Tony	CPPg++10.5.0	Error
Aug 5, 2026 22:42	Tony	CPPg++10.5.0	Success	7,939+15.67 RP
Aug 5, 2026 22:31	Tony	CPPg++10.5.0	Success	8,712
Aug 5, 2026 22:23	Tony	CPPg++14.2.0	Success	8,823
Aug 5, 2026 22:23	Tony	CPPg++10.5.0	Success	8,714
Aug 5, 2026 22:22	Tony	CPPg++14.2.0	Success	8,914
Aug 5, 2026 06:26	C21	CPPg++10.5.0	Success	56,433+1.48 RP
Aug 5, 2026 06:24	C21	CPPg++10.5.0	Success	56,907+63.40 RP
Aug 5, 2026 06:18	C21	CPPg++10.5.0	Error
Aug 5, 2026 06:18	C21	CPPg++10.5.0	Success	89,026+112.33 RP
Aug 4, 2026 19:39	boop34	CPPg++14.2.0	Success	8,286
Aug 4, 2026 16:26	boop34	CPPg++14.2.0	Success	8,240+1.32 RP
Aug 4, 2026 16:25	boop34	CPPg++14.2.0	Success	8,262
Aug 4, 2026 16:24	boop34	CPPg++14.2.0	Error
Aug 4, 2026 16:19	boop34	CPPg++14.2.0	Success	9,064
Aug 4, 2026 16:17	boop34	CPPg++14.2.0	Success	29,512
Aug 4, 2026 16:14	boop34	CPPg++14.2.0	Success	29,645
Aug 4, 2026 16:11	boop34	CPPg++14.2.0	Error
Aug 4, 2026 15:55	boop34	CPPg++14.2.0	Success	28,254
Aug 4, 2026 15:52	boop34	CPPg++14.2.0	Success	29,413
Aug 4, 2026 15:49	boop34	CPPg++14.2.0	Error
Aug 4, 2026 15:35	boop34	CPPg++14.2.0	Success	15,439
Aug 4, 2026 15:32	boop34	CPPg++14.2.0	Error
Aug 4, 2026 13:49	LatentSearch	CPPg++14.2.0	Success	7,620
Aug 4, 2026 10:42	LatentSearch	CPPg++10.5.0	Success	7,108+180.02 RP
Aug 4, 2026 10:01	Teow Hua Jun	CPPclang++20.1.2	Success	5,950+107.85 RP
Aug 4, 2026 09:49	Teow Hua Jun	CPPclang++20.1.2	Success	7,858
Aug 4, 2026 09:37	LatentSearch	CPPg++14.2.0	Success	8,151+1'192.86 RP
Aug 4, 2026 09:21	Teow Hua Jun	CPPclang++20.1.2	Success	6,827
Aug 4, 2026 09:16	Teow Hua Jun	CPPclang++20.1.2	Success	6,370
Aug 4, 2026 09:13	Teow Hua Jun	CPPclang++20.1.2	Success	6,674
Aug 4, 2026 08:38	Teow Hua Jun	CPPg++14.2.0	Success	8,313
Aug 4, 2026 08:34	Teow Hua Jun	CPPclang++20.1.2	Success	7,006
Aug 4, 2026 08:31	Teow Hua Jun	CPPclang++20.1.2	Success	6,358+122.50 RP
Aug 4, 2026 07:45	LatentSearch	RUSTrust-1.95.0	Success	294,278+33.98 RP
Aug 4, 2026 07:45	Teow Hua Jun	CPPclang++20.1.2	Success	6,905
Aug 4, 2026 07:17	Teow Hua Jun	CPPclang++20.1.2	Success	9,854
Aug 4, 2026 06:09	Teow Hua Jun	CPPclang++20.1.2	Success	7,979
Aug 4, 2026 05:54	Teow Hua Jun	CPPclang++20.1.2	Success	6,895+8.78 RP
Aug 4, 2026 04:58	limanjun99	CPPclang++20.1.2	Success	4,903
Aug 4, 2026 03:44	Teow Hua Jun	CPPclang++20.1.2	Success	6,937+202.69 RP
Aug 3, 2026 21:46	Tony	CPPg++14.2.0	Success	16,052
Aug 3, 2026 18:19	boop34	CPPg++14.2.0	Success	8,264
Aug 3, 2026 18:18	boop34	CPPg++14.2.0	Success	8,249+6.14 RP
Aug 3, 2026 18:16	boop34	CPPg++14.2.0	Success	8,900
Aug 3, 2026 18:15	boop34	CPPg++14.2.0	Success	8,928
Aug 3, 2026 18:14	boop34	CPPg++14.2.0	Success	9,060
Aug 3, 2026 17:39	Teow Hua Jun	CPPg++14.2.0	Error
Aug 3, 2026 17:37	Teow Hua Jun	CPPg++10.5.0	Success	8,805
Aug 3, 2026 16:36	Teow Hua Jun	CPPg++14.2.0	Success	8,519
Aug 3, 2026 16:31	Teow Hua Jun	CPPg++14.2.0	Success	8,074
Aug 3, 2026 16:30	Teow Hua Jun	CPPg++14.2.0	Success	8,075
Aug 3, 2026 16:22	Teow Hua Jun	CPPg++14.2.0	Success	8,072+0.15 RP
Aug 3, 2026 16:21	Teow Hua Jun	CPPg++14.2.0	Success	8,073+181.28 RP
Aug 3, 2026 15:17	Teow Hua Jun	CPPg++14.2.0	Success	9,504
Aug 3, 2026 15:16	Teow Hua Jun	CPPg++14.2.0	Success	10,781
Aug 3, 2026 14:59	Teow Hua Jun	CPPg++14.2.0	Success	10,553
Aug 3, 2026 14:36	Teow Hua Jun	CPPg++14.2.0	Success	11,082
Aug 3, 2026 14:34	Teow Hua Jun	CPPg++14.2.0	Success	10,998
Aug 3, 2026 14:33	Teow Hua Jun	CPPg++10.5.0	Success	11,882
Aug 3, 2026 13:02	capitalistspz	CPPg++14.2.0	Success	108,209+92.41 RP
Aug 3, 2026 12:58	capitalistspz	CPPg++14.2.0	Error
Aug 3, 2026 10:06	Teow Hua Jun	CPPg++10.5.0	Success	12,750
Aug 2, 2026 21:50	Tony	CPPg++14.2.0	Success	20,950
Aug 2, 2026 21:50	Tony	CPPg++14.2.0	Success	15,027
Aug 2, 2026 21:48	Tony	CPPg++14.2.0	Success	8,039+48.19 RP
Aug 2, 2026 21:46	Tony	CPPclang++19.1.1	Success	10,448
Aug 2, 2026 21:37	Tony	CPPclang++20.1.2	Success	9,936
Aug 2, 2026 21:23	Tony	CPPg++14.2.0	Success	10,567
Aug 2, 2026 20:56	George Seabridge	RUSTrust-1.95.0	Success	5,570+9.62 RP
Aug 2, 2026 20:56	George Seabridge	RUSTrust-1.95.0	Success	5,605
Aug 2, 2026 20:55	George Seabridge	RUSTrust-1.95.0	Success	5,613
Aug 2, 2026 20:55	Tony	CPPg++14.2.0	Success	8,420
Aug 2, 2026 20:52	Tony	CPPg++14.2.0	Success	8,535
Aug 2, 2026 20:48	Tony	CPPg++14.2.0	Success	8,363+111.73 RP
Aug 2, 2026 20:47	George Seabridge	RUSTrust-1.95.0	Success	7,103
Aug 2, 2026 20:46	George Seabridge	RUSTrust-1.95.0	Success	7,149
Aug 2, 2026 20:43	Tony	CPPg++14.2.0	Success	9,225+7.35 RP

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