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 15, 2026 07:55	eldon-chung	CPPclang++18.1.3	Success	37,636
Mar 15, 2026 07:54	eldon-chung	CPPclang++18.1.3	Success	37,124
Mar 15, 2026 07:54	eldon-chung	CPPg++13.3.0	Success	40,211
Mar 15, 2026 06:24	tqbfjotld-0	CPPg++13.3.0	Success	61,176
Mar 15, 2026 06:16	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:13	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:12	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 06:11	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 05:59	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 05:51	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 03:58	Josu San Martin	CPPclang++18.1.3	Success	5,129
Mar 15, 2026 03:58	Josu San Martin	CPPclang++18.1.3	Success	5,087
Mar 15, 2026 03:20	tqbfjotld-0	CPPg++13.3.0	Success	71,646
Mar 15, 2026 03:13	tqbfjotld-0	CPPg++13.3.0	Success	73,421
Mar 15, 2026 03:03	zielaj	CPPclang++18.1.3	Success	3,515
Mar 15, 2026 03:00	zielaj	CPPclang++18.1.3	Success	3,503+6.50 RP
Mar 15, 2026 02:59	tqbfjotld-0	CPPg++13.3.0	Success	358,627
Mar 15, 2026 02:47	tqbfjotld-0	CPPg++13.3.0	Success	52,343+20.48 RP
Mar 15, 2026 02:45	zielaj	CPPclang++18.1.3	Success	3,538
Mar 15, 2026 02:44	tqbfjotld-0	CPPg++13.3.0	Success	58,629+170.56 RP
Mar 15, 2026 02:44	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 02:39	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 02:39	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 02:38	tqbfjotld-0	CPPg++13.3.0	Error
Mar 15, 2026 02:35	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 02:30	zielaj	CPPclang++18.1.3	Success	3,513
Mar 15, 2026 02:24	zielaj	CPPclang++18.1.3	Success	3,526
Mar 15, 2026 02:17	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 02:10	zielaj	CPPclang++18.1.3	Success	3,549
Mar 15, 2026 02:08	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 02:07	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 02:06	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 01:49	zielaj	CPPclang++18.1.3	Success	3,511+11.31 RP
Mar 15, 2026 01:47	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 01:32	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 01:23	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 01:19	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 01:04	Ondřej Polanecký	CPPclang++18.1.3	Success	20,296+11.22 RP
Mar 15, 2026 00:58	Ondřej Polanecký	CPPclang++18.1.3	Success	53,286
Mar 15, 2026 00:41	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:39	Sergey Serebryakov	CPPg++13.3.0	Success	8,349
Mar 15, 2026 00:38	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:36	Sergey Serebryakov	CPPg++13.3.0	Success	7,690
Mar 15, 2026 00:34	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:29	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:18	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:16	zielaj	CPPclang++18.1.3	Error
Mar 15, 2026 00:15	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 22:51	Ondřej Polanecký	CPPclang++18.1.3	Success	20,778
Mar 14, 2026 22:51	Ondřej Polanecký	CPPclang++18.1.3	Success	20,769+57.78 RP
Mar 14, 2026 22:45	wn	CPPclang++18.1.3	Success	4,281
Mar 14, 2026 22:44	wn	CPPclang++18.1.3	Success	4,286
Mar 14, 2026 22:40	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 22:40	wn	CPPclang++18.1.3	Success	4,270
Mar 14, 2026 22:38	wn	CPPclang++18.1.3	Error
Mar 14, 2026 22:36	Ondřej Polanecký	CPPclang++18.1.3	Success	23,601+10.71 RP
Mar 14, 2026 22:36	wn	CPPclang++18.1.3	Error
Mar 14, 2026 22:28	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 22:27	Ondřej Polanecký	CPPclang++18.1.3	Success	24,213+19.24 RP
Mar 14, 2026 22:27	Ondřej Polanecký	CPPg++13.3.0	Success	25,396+146.47 RP
Mar 14, 2026 22:10	Ondřej Polanecký	CPPg++13.3.0	Success	47,655
Mar 14, 2026 22:05	Ondřej Polanecký	CPPg++13.3.0	Success	48,151
Mar 14, 2026 22:03	wn	CPPclang++18.1.3	Success	4,266
Mar 14, 2026 21:53	wn	CPPclang++18.1.3	Success	4,261
Mar 14, 2026 21:52	Ondřej Polanecký	CPPg++13.3.0	Success	40,438+26.19 RP
Mar 14, 2026 21:49	wn	CPPclang++18.1.3	Success	4,292
Mar 14, 2026 21:47	wn	CPPclang++18.1.3	Success	4,322
Mar 14, 2026 21:46	wn	CPPclang++18.1.3	Success	4,341
Mar 14, 2026 21:46	wn	CPPclang++18.1.3	Success	4,320
Mar 14, 2026 21:46	wn	CPPclang++18.1.3	Success	4,340
Mar 14, 2026 21:46	wn	CPPclang++18.1.3	Success	4,315
Mar 14, 2026 21:45	wn	CPPclang++18.1.3	Success	4,330
Mar 14, 2026 21:45	wn	CPPclang++18.1.3	Success	4,286
Mar 14, 2026 21:45	wn	CPPclang++18.1.3	Success	4,337
Mar 14, 2026 21:45	wn	CPPclang++18.1.3	Success	4,327
Mar 14, 2026 21:44	wn	CPPclang++18.1.3	Success	4,330
Mar 14, 2026 21:44	wn	CPPclang++18.1.3	Success	4,279
Mar 14, 2026 21:44	wn	CPPclang++18.1.3	Success	4,320
Mar 14, 2026 21:44	wn	CPPclang++18.1.3	Success	4,318
Mar 14, 2026 21:43	wn	CPPclang++18.1.3	Success	4,332
Mar 14, 2026 21:43	wn	CPPclang++18.1.3	Success	4,274
Mar 14, 2026 21:43	wn	CPPclang++18.1.3	Success	4,318
Mar 14, 2026 21:43	wn	CPPclang++18.1.3	Success	4,319
Mar 14, 2026 21:42	wn	CPPclang++18.1.3	Success	4,328
Mar 14, 2026 21:42	wn	CPPclang++18.1.3	Success	4,280
Mar 14, 2026 21:42	wn	CPPclang++18.1.3	Success	4,270
Mar 14, 2026 21:41	wn	CPPclang++18.1.3	Success	4,291
Mar 14, 2026 21:41	wn	CPPclang++18.1.3	Success	4,322
Mar 14, 2026 21:41	wn	CPPclang++18.1.3	Success	4,253+3.86 RP
Mar 14, 2026 21:40	wn	CPPclang++18.1.3	Success	4,276
Mar 14, 2026 21:40	wn	CPPclang++18.1.3	Success	4,319
Mar 14, 2026 21:40	wn	CPPclang++18.1.3	Success	4,325
Mar 14, 2026 21:31	wn	CPPclang++18.1.3	Success	4,319
Mar 14, 2026 21:31	wn	CPPclang++18.1.3	Success	4,321
Mar 14, 2026 21:31	wn	CPPclang++18.1.3	Success	4,317
Mar 14, 2026 21:30	wn	CPPclang++18.1.3	Success	4,332
Mar 14, 2026 21:30	wn	CPPclang++18.1.3	Success	4,277
Mar 14, 2026 21:30	wn	CPPclang++18.1.3	Success	4,318
Mar 14, 2026 21:30	wn	CPPclang++18.1.3	Success	4,393
Mar 14, 2026 21:29	wn	CPPclang++18.1.3	Success	4,397

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