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
Apr 13, 2026 01:20	Josu San Martin	CPPclang++18.1.3	Success	5,101
Apr 13, 2026 01:20	Josu San Martin	CPPclang++18.1.3	Success	5,079
Apr 13, 2026 01:17	Josu San Martin	CPPclang++18.1.3	Success	5,224
Apr 13, 2026 01:17	Josu San Martin	CPPg++13.3.0	Success	5,913
Apr 13, 2026 01:17	Josu San Martin	CPPg++13.3.0	Success	5,907
Apr 13, 2026 01:16	Josu San Martin	CPPclang++18.1.3	Success	5,375
Apr 13, 2026 01:14	Josu San Martin	CPPclang++18.1.3	Success	5,283
Apr 13, 2026 01:13	Josu San Martin	CPPclang++18.1.3	Success	5,103
Apr 13, 2026 01:13	Josu San Martin	CPPclang++18.1.3	Success	5,296
Apr 13, 2026 01:09	Josu San Martin	CPPg++13.3.0	Success	5,739
Apr 13, 2026 00:47	Josu San Martin	CPPg++13.3.0	Success	5,928
Apr 13, 2026 00:45	Josu San Martin	CPPg++13.3.0	Success	5,935
Apr 13, 2026 00:23	Josu San Martin	CPPg++13.3.0	Success	5,692
Apr 13, 2026 00:20	Josu San Martin	CPPg++13.3.0	Success	41,627
Apr 12, 2026 22:29	Josu San Martin	CPPclang++18.1.3	Success	5,301
Apr 12, 2026 22:21	Josu San Martin	CPPclang++18.1.3	Success	5,069
Apr 12, 2026 22:19	Josu San Martin	CPPclang++18.1.3	Success	5,201
Apr 12, 2026 21:57	Josu San Martin	CPPclang++18.1.3	Success	5,229
Apr 12, 2026 21:41	zielaj	CPPclang++18.1.3	Success	3,416
Apr 12, 2026 21:40	zielaj	CPPclang++18.1.3	Error	+0.86 RP
Apr 12, 2026 21:39	zielaj	CPPclang++18.1.3	Success	3,417
Apr 12, 2026 21:36	zielaj	CPPclang++18.1.3	Success	3,417
Apr 12, 2026 21:35	zielaj	CPPclang++18.1.3	Success	3,409
Apr 12, 2026 21:32	zielaj	CPPclang++18.1.3	Success	3,504
Apr 12, 2026 21:31	zielaj	CPPclang++18.1.3	Success	3,430
Apr 12, 2026 21:29	zielaj	CPPclang++18.1.3	Success	3,499
Apr 12, 2026 21:28	zielaj	CPPclang++18.1.3	Success	3,544
Apr 12, 2026 21:27	zielaj	CPPclang++18.1.3	Success	3,773
Apr 12, 2026 21:26	zielaj	CPPclang++18.1.3	Success	3,423
Apr 12, 2026 20:39	Benn Tan	CPPclang++18.1.3	Error
Apr 12, 2026 20:38	Benn Tan	CPPclang++18.1.3	Error
Apr 12, 2026 20:36	Benn Tan	CPPclang++18.1.3	Success	6,993
Apr 12, 2026 20:35	Benn Tan	CPPclang++18.1.3	Error
Apr 12, 2026 20:24	Josu San Martin	CPPclang++18.1.3	Success	6,044
Apr 12, 2026 19:39	Josu San Martin	CPPclang++18.1.3	Success	5,117
Apr 12, 2026 19:37	Josu San Martin	CPPclang++18.1.3	Success	5,012
Apr 12, 2026 19:35	Josu San Martin	CPPclang++18.1.3	Success	5,241
Apr 12, 2026 19:33	Josu San Martin	CPPclang++18.1.3	Success	5,374
Apr 12, 2026 19:29	Josu San Martin	CPPclang++18.1.3	Success	4,987+26.58 RP
Apr 12, 2026 19:27	Josu San Martin	CPPclang++18.1.3	Success	5,299
Apr 12, 2026 19:24	Josu San Martin	CPPclang++18.1.3	Success	5,238
Apr 12, 2026 19:18	Josu San Martin	CPPclang++18.1.3	Success	5,054+3.91 RP
Apr 12, 2026 19:12	Josu San Martin	CPPclang++18.1.3	Success	5,127
Apr 12, 2026 19:09	Josu San Martin	CPPclang++18.1.3	Success	5,119
Apr 12, 2026 19:06	Josu San Martin	CPPclang++18.1.3	Success	5,197
Apr 12, 2026 17:23	Yash Shah	CPPg++13.3.0	Success	2,067,419+4.84 RP
Apr 12, 2026 17:22	Yash Shah	CPPg++13.3.0	Error
Apr 12, 2026 16:39	Josu San Martin	CPPclang++18.1.3	Success	5,396
Apr 12, 2026 12:51	wn	CPPclang++18.1.3	Success	4,254
Apr 12, 2026 12:30	wn	CPPclang++18.1.3	Success	4,262
Apr 12, 2026 12:28	wn	CPPclang++18.1.3	Success	4,289
Apr 12, 2026 12:25	wn	CPPclang++18.1.3	Success	4,224
Apr 12, 2026 12:25	wn	CPPg++13.3.0	Success	4,657
Apr 12, 2026 12:21	wn	CPPclang++18.1.3	Success	4,248
Apr 12, 2026 12:19	wn	CPPclang++18.1.3	Success	4,223+1.12 RP
Apr 12, 2026 12:15	wn	CPPclang++18.1.3	Success	4,244
Apr 12, 2026 12:12	wn	CPPclang++18.1.3	Success	4,347
Apr 12, 2026 12:04	wn	CPPclang++18.1.3	Success	4,225+6.15 RP
Apr 12, 2026 05:24	Josu San Martin	CPPclang++18.1.3	Success	5,355
Apr 12, 2026 05:22	Josu San Martin	CPPclang++18.1.3	Success	5,106
Apr 12, 2026 05:20	Josu San Martin	CPPclang++18.1.3	Success	5,122
Apr 12, 2026 05:15	Josu San Martin	CPPclang++18.1.3	Success	5,321
Apr 12, 2026 05:02	Josu San Martin	CPPclang++18.1.3	Success	5,352
Apr 12, 2026 04:51	Josu San Martin	CPPclang++18.1.3	Success	5,363
Apr 12, 2026 04:45	Josu San Martin	CPPclang++18.1.3	Success	5,418
Apr 12, 2026 04:27	Josu San Martin	CPPclang++18.1.3	Success	5,401
Apr 12, 2026 04:00	Josu San Martin	CPPg++13.3.0	Success	5,860
Apr 12, 2026 03:56	Josu San Martin	CPPclang++18.1.3	Success	5,104
Apr 12, 2026 03:11	Josu San Martin	CPPclang++18.1.3	Success	5,209
Apr 12, 2026 02:58	Josu San Martin	CPPclang++18.1.3	Success	5,116
Apr 12, 2026 02:42	Josu San Martin	CPPclang++18.1.3	Success	5,217
Apr 12, 2026 02:35	Josu San Martin	CPPclang++18.1.3	Success	5,079
Apr 12, 2026 02:25	Josu San Martin	CPPclang++18.1.3	Success	5,341
Apr 12, 2026 02:20	Josu San Martin	CPPclang++18.1.3	Success	5,200
Apr 11, 2026 19:40	Tim Zhamoidin	CPPclang++18.1.3	Success	89,948
Apr 11, 2026 19:39	Tim Zhamoidin	CPPg++13.3.0	Success	81,515+117.21 RP
Apr 11, 2026 19:38	Tim Zhamoidin	CPPg++13.3.0	Error
Apr 11, 2026 19:33	Tim Zhamoidin	CPPg++13.3.0	Success	2,071,268
Apr 11, 2026 19:32	Josu San Martin	CPPclang++18.1.3	Success	5,319
Apr 11, 2026 18:43	Josu San Martin	CPPclang++18.1.3	Success	5,298
Apr 11, 2026 18:42	Josu San Martin	CPPclang++18.1.3	Success	5,186
Apr 11, 2026 18:34	Josu San Martin	CPPclang++18.1.3	Success	5,196
Apr 11, 2026 18:29	Josu San Martin	CPPclang++18.1.3	Success	31,546
Apr 11, 2026 17:26	Danylo Mocherniuk	CPPg++13.3.0	Success	4,535
Apr 11, 2026 17:25	Danylo Mocherniuk	CPPg++13.3.0	Success	4,558
Apr 11, 2026 15:26	Josu San Martin	CPPclang++18.1.3	Success	60,389
Apr 11, 2026 15:22	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 15:22	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 15:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 15:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 15:12	Josu San Martin	CPPclang++18.1.3	Success	7,396
Apr 11, 2026 14:10	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 14:07	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 14:05	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 13:55	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 13:36	wn	CPPclang++18.1.3	Success	4,265
Apr 11, 2026 13:33	wn	CPPclang++18.1.3	Success	4,240
Apr 11, 2026 13:32	wn	CPPclang++18.1.3	Success	4,236+1.11 RP
Apr 11, 2026 13:27	wn	CPPclang++18.1.3	Success	4,279
Apr 11, 2026 13:26	wn	CPPclang++18.1.3	Success	4,253

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