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 18, 2026 01:52	Elijah Kin	CPPg++13.3.0	Success	71,071
Mar 18, 2026 01:51	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 01:47	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 01:45	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 01:45	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,776+5.38 RP
Mar 18, 2026 01:44	Yuriy Lyfenko	CPPg++13.3.0	Success	5,972
Mar 18, 2026 01:41	Elijah Kin	CPPclang++18.1.3	Success	52,035
Mar 18, 2026 01:41	Yuriy Lyfenko	CPPg++13.3.0	Success	5,794+3.27 RP
Mar 18, 2026 01:39	Elijah Kin	CPPclang++18.1.3	Success	52,035+19.25 RP
Mar 18, 2026 01:39	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,805+65.93 RP
Mar 18, 2026 01:29	Yuriy Lyfenko	CPPg++13.3.0	Success	6,134
Mar 18, 2026 01:29	Elijah Kin	CPPclang++18.1.3	Success	59,707
Mar 18, 2026 01:29	Yuriy Lyfenko	CPPclang++18.1.3	Success	6,036+233.85 RP
Mar 18, 2026 01:28	Elijah Kin	CPPclang++18.1.3	Success	59,499
Mar 18, 2026 01:21	Elijah Kin	CPPclang++18.1.3	Success	57,966
Mar 18, 2026 01:17	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 01:11	Elijah Kin	CPPclang++18.1.3	Success	57,826+0.16 RP
Mar 18, 2026 01:09	Elijah Kin	CPPclang++18.1.3	Success	57,892
Mar 18, 2026 01:09	Elijah Kin	CPPg++13.3.0	Success	74,027
Mar 18, 2026 01:07	Elijah Kin	CPPclang++18.1.3	Success	58,643
Mar 18, 2026 01:01	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 00:58	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 00:57	Elijah Kin	CPPclang++18.1.3	Success	58,624
Mar 18, 2026 00:53	Elijah Kin	CPPclang++18.1.3	Success	58,625
Mar 18, 2026 00:52	Elijah Kin	CPPclang++18.1.3	Success	58,650
Mar 18, 2026 00:49	Elijah Kin	CPPclang++18.1.3	Success	58,613
Mar 18, 2026 00:46	Elijah Kin	CPPclang++18.1.3	Success	57,880+20.57 RP
Mar 18, 2026 00:44	Elijah Kin	CPPclang++18.1.3	Success	66,578
Mar 18, 2026 00:41	Elijah Kin	CPPclang++18.1.3	Success	65,734
Mar 18, 2026 00:39	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 00:33	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 00:20	Elijah Kin	CPPclang++18.1.3	Success	65,712
Mar 18, 2026 00:19	Elijah Kin	CPPclang++18.1.3	Success	65,763
Mar 18, 2026 00:17	Elijah Kin	CPPclang++18.1.3	Success	65,703+0.02 RP
Mar 18, 2026 00:17	Elijah Kin	CPPclang++18.1.3	Success	65,710+0.06 RP
Mar 18, 2026 00:16	Elijah Kin	CPPclang++18.1.3	Success	65,740
Mar 18, 2026 00:14	Elijah Kin	CPPclang++18.1.3	Success	65,738+0.02 RP
Mar 18, 2026 00:14	Elijah Kin	CPPclang++18.1.3	Success	65,858
Mar 18, 2026 00:13	Elijah Kin	CPPclang++18.1.3	Success	65,810
Mar 18, 2026 00:12	Elijah Kin	CPPclang++18.1.3	Success	65,758
Mar 18, 2026 00:08	Elijah Kin	CPPclang++18.1.3	Error
Mar 18, 2026 00:05	Elijah Kin	CPPclang++18.1.3	Success	68,994
Mar 17, 2026 23:46	Sergey Serebryakov	CPPg++13.3.0	Success	101,372
Mar 17, 2026 23:42	shartgepetto	CPPclang++18.1.3	Error
Mar 17, 2026 23:42	shartgepetto	CPPclang++18.1.3	Success	9,168
Mar 17, 2026 23:42	shartgepetto	CPPclang++18.1.3	Success	9,167
Mar 17, 2026 23:22	Sergey Serebryakov	CPPg++13.3.0	Success	10,341
Mar 17, 2026 23:21	Sergey Serebryakov	CPPclang++18.1.3	Error
Mar 17, 2026 23:02	zielaj	CPPclang++18.1.3	Success	3,510
Mar 17, 2026 23:02	zielaj	CPPclang++18.1.3	Success	3,531
Mar 17, 2026 22:54	Sergey Serebryakov	CPPclang++18.1.3	Success	8,127
Mar 17, 2026 22:47	Sergey Serebryakov	CPPclang++18.1.3	Success	6,846+39.04 RP
Mar 17, 2026 22:47	Sergey Serebryakov	CPPclang++18.1.3	Success	7,778
Mar 17, 2026 22:43	zielaj	CPPclang++18.1.3	Success	3,518
Mar 17, 2026 22:42	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:41	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:39	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:38	Sergey Serebryakov	CPPg++13.3.0	Success	7,460
Mar 17, 2026 22:38	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:36	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:35	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:35	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:35	Sergey Serebryakov	CPPg++13.3.0	Success	7,295
Mar 17, 2026 22:33	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:32	Sergey Serebryakov	CPPg++13.3.0	Success	7,136
Mar 17, 2026 22:31	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:30	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:30	Sergey Serebryakov	CPPg++13.3.0	Success	7,328
Mar 17, 2026 22:27	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 22:25	zielaj	CPPclang++18.1.3	Error
Mar 17, 2026 21:29	Adam Folwarczny	CPPg++13.3.0	Success	31,032
Mar 17, 2026 21:18	Adam Folwarczny	CPPg++13.3.0	Success	19,251
Mar 17, 2026 20:59	Sergey Serebryakov	CPPg++13.3.0	Success	7,618
Mar 17, 2026 20:57	Sergey Serebryakov	CPPg++13.3.0	Success	7,034+1.62 RP
Mar 17, 2026 20:56	Sergey Serebryakov	CPPg++13.3.0	Success	8,293
Mar 17, 2026 20:56	Sergey Serebryakov	CPPg++13.3.0	Success	10,287
Mar 17, 2026 20:56	Sergey Serebryakov	CPPg++13.3.0	Success	7,042+0.81 RP
Mar 17, 2026 19:50	wn	CPPclang++18.1.3	Success	4,384
Mar 17, 2026 19:39	wn	CPPclang++18.1.3	Success	4,282
Mar 17, 2026 19:36	wn	CPPclang++18.1.3	Success	4,320
Mar 17, 2026 19:34	wn	CPPclang++18.1.3	Success	4,441
Mar 17, 2026 19:28	wn	CPPclang++18.1.3	Success	4,343
Mar 17, 2026 19:27	wn	CPPclang++18.1.3	Success	4,366
Mar 17, 2026 19:22	wn	CPPclang++18.1.3	Success	4,845
Mar 17, 2026 19:20	wn	CPPclang++18.1.3	Success	4,525
Mar 17, 2026 19:17	wn	CPPclang++18.1.3	Success	4,267
Mar 17, 2026 19:04	wn	CPPclang++18.1.3	Success	4,349
Mar 17, 2026 19:00	wn	CPPclang++18.1.3	Success	4,291
Mar 17, 2026 18:51	caando	CPPg++13.3.0	Error
Mar 17, 2026 18:50	caando	CPPg++13.3.0	Success	12,363
Mar 17, 2026 18:39	caando	CPPg++13.3.0	Success	12,488
Mar 17, 2026 18:36	caando	CPPg++13.3.0	Success	11,616
Mar 17, 2026 18:34	caando	CPPg++13.3.0	Error
Mar 17, 2026 18:34	Sergey Serebryakov	CPPg++13.3.0	Success	7,099
Mar 17, 2026 18:33	Sergey Serebryakov	CPPg++13.3.0	Success	7,127
Mar 17, 2026 18:32	caando	CPPg++13.3.0	Success	14,437
Mar 17, 2026 18:32	Sergey Serebryakov	CPPg++13.3.0	Success	7,263
Mar 17, 2026 18:28	Sergey Serebryakov	CPPg++13.3.0	Success	8,170
Mar 17, 2026 18:24	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,230
Mar 17, 2026 18:24	Mikołaj Uzarski	CPPclang++18.1.3	Error

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