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
Mar 28, 2026 02:12	olliecrow	RUSTrust-1.94.0	Success	5,677
Mar 28, 2026 02:12	olliecrow	RUSTrust-1.94.0	Success	5,767
Mar 28, 2026 02:11	olliecrow	RUSTrust-1.94.0	Success	5,886
Mar 28, 2026 02:10	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 02:08	olliecrow	RUSTrust-1.94.0	Success	5,891
Mar 28, 2026 02:08	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 02:07	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 01:35	olliecrow	RUSTrust-1.94.0	Success	5,767
Mar 28, 2026 01:34	olliecrow	RUSTrust-1.94.1	Success	5,718
Mar 28, 2026 01:33	olliecrow	RUSTrust-1.94.1	Success	5,763
Mar 28, 2026 00:53	Ondřej Polanecký	CPPg++13.3.0	Success	8,437
Mar 28, 2026 00:18	Ondřej Polanecký	CPPg++13.3.0	Success	8,553
Mar 28, 2026 00:17	Ondřej Polanecký	CPPg++13.3.0	Success	8,547
Mar 28, 2026 00:17	Ondřej Polanecký	CPPg++13.3.0	Success	8,583
Mar 28, 2026 00:16	Ondřej Polanecký	CPPclang++18.1.3	Success	9,624
Mar 28, 2026 00:16	Ondřej Polanecký	CPPg++13.3.0	Success	8,557
Mar 27, 2026 23:44	zielaj	CPPclang++18.1.3	Error
Mar 27, 2026 23:34	zielaj	CPPclang++18.1.3	Error
Mar 27, 2026 23:28	Sergey Serebryakov	CPPg++13.3.0	Error
Mar 27, 2026 23:23	zielaj	CPPclang++18.1.3	Error
Mar 27, 2026 23:16	Sergey Serebryakov	CPPg++13.3.0	Error
Mar 27, 2026 23:13	Sergey Serebryakov	CPPg++13.3.0	Error
Mar 27, 2026 21:17	Sergey Serebryakov	CPPg++13.3.0	Error
Mar 27, 2026 21:04	Brillentyp	RUSTrust-1.94.1	Success	87,804+88.23 RP
Mar 27, 2026 20:42	Brillentyp	RUSTrust-1.94.1	Success	389,746+0.41 RP
Mar 27, 2026 20:42	Brillentyp	RUSTrust-1.94.1	Error
Mar 27, 2026 20:28	Brillentyp	RUSTrust-1.94.1	Error
Mar 27, 2026 19:43	Brillentyp	RUSTrust-1.94.1	Error
Mar 27, 2026 19:41	Brillentyp	RUSTrust-1.94.1	Success	396,074+25.25 RP
Mar 27, 2026 18:31	Sergey Serebryakov	CPPg++13.3.0	Success	6,666
Mar 27, 2026 18:22	Sergey Serebryakov	CPPg++13.3.0	Success	7,452
Mar 27, 2026 17:43	wn	CPPclang++18.1.3	Success	4,296
Mar 27, 2026 17:41	wn	CPPclang++18.1.3	Success	4,280
Mar 27, 2026 16:17	Sabadon	GOgo1.26.1	Success	97,050+1.30 RP
Mar 27, 2026 16:10	Sabadon	GOgo1.26.1	Error
Mar 27, 2026 15:57	Sabadon	GOgo1.26.1	Error
Mar 27, 2026 15:50	Sabadon	GOgo1.26.1	Success	98,292+0.33 RP
Mar 27, 2026 15:44	Sabadon	GOgo1.26.1	Success	98,611+58.99 RP
Mar 27, 2026 14:42	Sabadon	GOgo1.26.1	Success	235,725+42.42 RP
Mar 27, 2026 14:21	Sergey Serebryakov	CPPg++13.3.0	Success	11,302
Mar 27, 2026 14:10	Sergey Serebryakov	CPPg++13.3.0	Success	14,133
Mar 27, 2026 14:09	Sergey Serebryakov	CPPg++13.3.0	Success	6,637
Mar 27, 2026 14:05	Sergey Serebryakov	CPPclang++18.1.3	Success	6,884
Mar 27, 2026 14:04	Sergey Serebryakov	CPPg++13.3.0	Error	+12.90 RP
Mar 27, 2026 14:03	Sergey Serebryakov	CPPg++13.3.0	Success	6,760
Mar 27, 2026 14:03	Sergey Serebryakov	CPPclang++18.1.3	Success	7,024
Mar 27, 2026 13:57	Sergey Serebryakov	CPPg++13.3.0	Success	6,616+50.78 RP
Mar 27, 2026 13:50	Dominique Garmier	CPPg++13.3.0	Success	37,409
Mar 27, 2026 12:56	zielaj	CPPclang++18.1.3	Success	3,532
Mar 27, 2026 11:33	Sergey Serebryakov	CPPg++13.3.0	Success	6,883
Mar 27, 2026 11:32	Sergey Serebryakov	CPPclang++18.1.3	Success	7,586
Mar 27, 2026 11:26	Sergey Serebryakov	CPPg++13.3.0	Success	7,277
Mar 27, 2026 10:40	Ignas Bagdonas	CPPclang++18.1.3	Success	9,634+55.96 RP
Mar 27, 2026 10:39	Ignas Bagdonas	CPPclang++18.1.3	Error
Mar 27, 2026 08:58	limanjun99	CPPg++13.3.0	Success	11,479
Mar 27, 2026 08:47	limanjun99	CPPg++13.3.0	Error
Mar 27, 2026 07:50	limanjun99	CPPg++13.3.0	Error
Mar 27, 2026 05:53	Dominique Garmier	CPPg++13.3.0	Success	103,630
Mar 27, 2026 04:47	Dominique Garmier	RUSTrust-1.94.0	Success	7,791
Mar 27, 2026 04:40	Dominique Garmier	RUSTrust-1.94.0	Success	444,020
Mar 27, 2026 04:37	Dominique Garmier	RUSTrust-1.94.1	Success	444,847
Mar 27, 2026 04:15	Dominique Garmier	CPPclang++18.1.3	Success	128,104
Mar 26, 2026 23:45	Dominique Garmier	CPPclang++18.1.3	Success	165,810
Mar 26, 2026 23:43	Dominique Garmier	CPPclang++18.1.3	Success	31,771
Mar 26, 2026 23:37	Ondřej Polanecký	CPPclang++18.1.3	Success	17,639
Mar 26, 2026 23:36	Ondřej Polanecký	CPPg++13.3.0	Success	15,114
Mar 26, 2026 23:26	Ondřej Polanecký	CPPclang++18.1.3	Success	18,069
Mar 26, 2026 23:15	Ondřej Polanecký	CPPclang++18.1.3	Success	9,830
Mar 26, 2026 23:15	Ondřej Polanecký	CPPg++13.3.0	Success	8,682
Mar 26, 2026 22:59	Ondřej Polanecký	CPPg++13.3.0	Success	8,431
Mar 26, 2026 22:58	Ondřej Polanecký	CPPg++13.3.0	Success	8,420+0.42 RP
Mar 26, 2026 22:57	Dominique Garmier	GOgo1.26.1	Success	93,987
Mar 26, 2026 22:53	Ondřej Polanecký	CPPg++13.3.0	Success	13,450
Mar 26, 2026 22:33	zielaj	CPPclang++18.1.3	Success	3,913
Mar 26, 2026 21:21	Dominique Garmier	CPPclang++18.1.3	Success	39,337
Mar 26, 2026 21:07	Dominique Garmier	CPPg++13.3.0	Success	40,585
Mar 26, 2026 20:09	olliecrow	RUSTrust-1.94.1	Success	5,834
Mar 26, 2026 19:21	Dominique Garmier	CPPclang++18.1.3	Success	39,091
Mar 26, 2026 19:20	Dominique Garmier	CPPclang++18.1.3	Success	37,989
Mar 26, 2026 19:11	Dominique Garmier	CPPclang++18.1.3	Success	28,185
Mar 26, 2026 18:58	Dominique Garmier	ZIG0.13.0	Success	40,226
Mar 26, 2026 18:50	olliecrow	RUSTrust-1.94.1	Success	6,033
Mar 26, 2026 18:46	olliecrow	RUSTrust-1.94.1	Success	6,035
Mar 26, 2026 18:42	olliecrow	RUSTrust-1.94.1	Success	6,128
Mar 26, 2026 18:39	wn	CPPclang++18.1.3	Success	11,433
Mar 26, 2026 18:24	Dominique Garmier	CPPclang++18.1.3	Success	39,070
Mar 26, 2026 18:22	wn	CPPclang++18.1.3	Error
Mar 26, 2026 17:40	Dominique Garmier	CPPclang++18.1.3	Success	28,177
Mar 26, 2026 17:32	Dominique Garmier	CPPclang++18.1.3	Success	39,241
Mar 26, 2026 17:17	Ignas Bagdonas	CPPclang++18.1.3	Success	10,379
Mar 26, 2026 17:13	Ignas Bagdonas	CPPclang++18.1.3	Success	11,601
Mar 26, 2026 17:12	Ignas Bagdonas	CPPclang++18.1.3	Success	11,459
Mar 26, 2026 17:03	Dominique Garmier	ZIG0.13.0	Success	82,148
Mar 26, 2026 16:53	olliecrow	CPPg++13.3.0	Error
Mar 26, 2026 16:04	Dominique Garmier	CPPg++13.3.0	Success	53,230
Mar 26, 2026 16:02	Dominique Garmier	CPPclang++18.1.3	Success	38,002
Mar 26, 2026 15:56	Dominique Garmier	CPPclang++18.1.3	Success	28,183
Mar 26, 2026 15:33	wn	CPPclang++18.1.3	Success	34,374
Mar 26, 2026 15:32	wn	CPPclang++18.1.3	Error
Mar 26, 2026 15:16	wn	CPPclang++18.1.3	Success	4,254

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