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
Mar 6, 2026 17:44	caando	CPPg++13.3.0	Success	17,412
Mar 6, 2026 17:40	caando	CPPg++13.3.0	Success	19,399
Mar 6, 2026 17:36	Josu San Martin	RUSTrust-1.94.0	Success	5,280
Mar 6, 2026 17:35	Josu San Martin	CPPclang++18.1.3	Error
Mar 6, 2026 17:31	caando	CPPg++13.3.0	Error
Mar 6, 2026 17:30	Josu San Martin	CPPclang++18.1.3	Success	5,401
Mar 6, 2026 17:28	Josu San Martin	CPPclang++18.1.3	Success	5,396
Mar 6, 2026 17:27	caando	CPPg++13.3.0	Success	17,413
Mar 6, 2026 17:26	caando	CPPg++13.3.0	Error
Mar 6, 2026 17:26	caando	CPPg++13.3.0	Error
Mar 6, 2026 17:25	caando	CPPg++13.3.0	Error
Mar 6, 2026 17:14	Josu San Martin	CPPg++13.3.0	Success	5,861
Mar 6, 2026 16:50	Josu San Martin	RUSTrust-1.94.0	Error	+14.58 RP
Mar 6, 2026 16:33	Josu San Martin	RUSTrust-1.94.0	Error	+47.75 RP
Mar 6, 2026 15:15	Josu San Martin	RUSTrust-1.94.0	Success	5,324+188.34 RP
Mar 6, 2026 13:37	NoSIMD_C#	CSHARP9.0.13	Success	314,391
Mar 6, 2026 10:56	olliecrow	CPPg++13.3.0	Error
Mar 6, 2026 10:11	wn	CPPclang++18.1.3	Success	4,440
Mar 6, 2026 03:31	Josu San Martin	RUSTrust-1.92.0	Error
Mar 5, 2026 23:46	wn	CPPclang++18.1.3	Success	4,576
Mar 5, 2026 23:08	wn	CPPclang++18.1.3	Success	8,336
Mar 5, 2026 22:40	Sergey Serebryakov	CPPclang++18.1.3	Error
Mar 5, 2026 22:39	Sergey Serebryakov	CPPclang++18.1.3	Error
Mar 5, 2026 19:57	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:48	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:35	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:15	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:11	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:07	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:03	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 19:00	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 15:06	NoSIMD_C#	CSHARP9.0.13	Error
Mar 5, 2026 12:48	Ham-Ham	CPPg++13.3.0	Error
Mar 5, 2026 07:29	juniskewl	CPPclang++18.1.3	Success	54,584
Mar 5, 2026 07:19	juniskewl	CPPclang++18.1.3	Success	64,053
Mar 5, 2026 07:14	juniskewl	CPPclang++18.1.3	Error
Mar 5, 2026 07:05	juniskewl	CPPclang++18.1.3	Error
Mar 5, 2026 06:54	juniskewl	CPPclang++18.1.3	Success	43,583
Mar 5, 2026 06:41	juniskewl	CPPclang++18.1.3	Success	45,005
Mar 5, 2026 06:39	juniskewl	CPPclang++18.1.3	Error
Mar 5, 2026 06:38	juniskewl	CPPclang++18.1.3	Error
Mar 5, 2026 02:11	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 02:07	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 01:58	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 01:54	olliecrow	CPPg++13.3.0	Success	58,866
Mar 5, 2026 01:49	olliecrow	CPPg++13.3.0	Success	63,388
Mar 5, 2026 01:45	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 01:41	olliecrow	CPPg++13.3.0	Error
Mar 5, 2026 01:36	olliecrow	CPPg++13.3.0	Success	5,596+5.73 RP
Mar 5, 2026 01:19	olliecrow	CPPg++13.3.0	Success	5,647
Mar 5, 2026 00:35	olliecrow	CPPg++13.3.0	Success	5,614+37.89 RP
Mar 4, 2026 23:34	olliecrow	CPPg++13.3.0	Error
Mar 4, 2026 23:23	olliecrow	CPPg++13.3.0	Error
Mar 4, 2026 23:08	olliecrow	CPPg++13.3.0	Error
Mar 4, 2026 22:33	olliecrow	CPPg++13.3.0	Success	5,874
Mar 4, 2026 22:30	olliecrow	CPPg++13.3.0	Success	5,902
Mar 4, 2026 22:19	olliecrow	CPPclang++18.1.3	Success	5,968
Mar 4, 2026 17:28	juniskewl	CPPclang++18.1.3	Success	43,226
Mar 4, 2026 17:26	caando	CPPg++13.3.0	Success	5,254
Mar 4, 2026 17:14	juniskewl	CPPclang++18.1.3	Success	44,820
Mar 4, 2026 17:12	caando	CPPg++13.3.0	Success	5,161
Mar 4, 2026 17:09	caando	CPPg++13.3.0	Success	5,273
Mar 4, 2026 17:06	caando	CPPg++13.3.0	Success	5,588
Mar 4, 2026 17:04	juniskewl	CPPclang++18.1.3	Success	42,960+47.77 RP
Mar 4, 2026 17:04	caando	CPPg++13.3.0	Success	5,121+14.76 RP
Mar 4, 2026 17:03	caando	CPPg++13.3.0	Success	5,299
Mar 4, 2026 17:01	juniskewl	CPPclang++18.1.3	Success	61,847
Mar 4, 2026 16:58	juniskewl	CPPclang++18.1.3	Success	59,241
Mar 4, 2026 16:55	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:49	juniskewl	CPPclang++18.1.3	Success	62,665
Mar 4, 2026 16:46	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:43	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:34	juniskewl	CPPclang++18.1.3	Success	54,053+5.04 RP
Mar 4, 2026 16:33	juniskewl	CPPg++13.3.0	Success	60,639
Mar 4, 2026 16:27	juniskewl	CPPclang++18.1.3	Success	55,567+15.20 RP
Mar 4, 2026 16:26	caando	CPPg++13.3.0	Error
Mar 4, 2026 16:22	caando	CPPg++13.3.0	Error
Mar 4, 2026 16:12	caando	CPPg++13.3.0	Success	6,451
Mar 4, 2026 16:12	caando	CPPg++13.3.0	Success	6,363
Mar 4, 2026 16:11	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:09	caando	CPPg++13.3.0	Success	5,283
Mar 4, 2026 16:07	caando	CPPg++13.3.0	Success	5,160+12.69 RP
Mar 4, 2026 16:06	caando	CPPg++13.3.0	Success	5,846
Mar 4, 2026 16:04	caando	CPPg++13.3.0	Success	5,451
Mar 4, 2026 15:57	caando	CPPg++13.3.0	Success	5,282
Mar 4, 2026 15:56	caando	CPPg++13.3.0	Success	5,287
Mar 4, 2026 15:54	caando	CPPg++13.3.0	Success	5,369
Mar 4, 2026 15:53	caando	CPPg++13.3.0	Success	5,327
Mar 4, 2026 15:49	caando	CPPg++13.3.0	Success	5,194+31.36 RP
Mar 4, 2026 15:40	caando	CPPg++13.3.0	Success	5,280+6.43 RP
Mar 4, 2026 15:26	juniskewl	CPPg++13.3.0	Success	63,707
Mar 4, 2026 15:25	juniskewl	CPPclang++18.1.3	Success	60,693+7.78 RP
Mar 4, 2026 15:24	juniskewl	CPPg++13.3.0	Success	63,702+152.15 RP
Mar 4, 2026 15:22	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:14	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:13	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:12	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:12	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:10	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:03	juniskewl	CPPclang++18.1.3	Success	2,069,359+4.83 RP

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