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 19, 2026 23:36	olliecrow	RUSTrust-1.94.0	Success	5,957
Mar 19, 2026 23:24	olliecrow	CPPg++13.3.0	Success	5,838
Mar 19, 2026 23:24	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 23:23	zielaj	CPPclang++18.1.3	Error
Mar 19, 2026 23:10	olliecrow	CPPg++13.3.0	Success	5,710
Mar 19, 2026 23:10	olliecrow	CPPg++13.3.0	Success	5,608
Mar 19, 2026 23:10	olliecrow	CPPg++13.3.0	Success	5,841
Mar 19, 2026 23:09	olliecrow	CPPg++13.3.0	Success	5,606
Mar 19, 2026 23:09	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 23:06	olliecrow	CPPg++13.3.0	Success	5,762
Mar 19, 2026 23:04	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 23:03	olliecrow	CPPg++13.3.0	Success	5,608
Mar 19, 2026 23:02	olliecrow	CPPg++13.3.0	Success	15,261
Mar 19, 2026 22:50	olliecrow	CPPclang++18.1.3	Success	5,880
Mar 19, 2026 22:46	olliecrow	CPPg++13.3.0	Success	5,400
Mar 19, 2026 22:36	olliecrow	CPPg++13.3.0	Success	73,299
Mar 19, 2026 22:03	Dominique Garmier	CPPg++13.3.0	Success	11,036
Mar 19, 2026 21:21	Genos0	CPPg++13.3.0	Success	62,358
Mar 19, 2026 21:21	Genos0	CPPclang++18.1.3	Success	61,472+5.07 RP
Mar 19, 2026 21:19	Udbhav	CPPclang++18.1.3	Error
Mar 19, 2026 16:59	Dominique Garmier	CPPg++13.3.0	Success	10,122
Mar 19, 2026 16:59	Dominique Garmier	CPPg++13.3.0	Success	16,022
Mar 19, 2026 16:58	Dominique Garmier	CPPg++13.3.0	Success	9,498
Mar 19, 2026 16:45	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 16:33	olliecrow	CPPg++13.3.0	Error
Mar 19, 2026 15:27	Ondřej Polanecký	CPPclang++18.1.3	Success	11,327
Mar 19, 2026 15:15	Ondřej Polanecký	CPPclang++18.1.3	Success	9,591
Mar 19, 2026 15:14	Ondřej Polanecký	CPPg++13.3.0	Success	8,423+148.05 RP
Mar 19, 2026 14:34	Ondřej Polanecký	CPPg++13.3.0	Success	10,297
Mar 19, 2026 12:55	Ondřej Polanecký	CPPg++13.3.0	Success	9,737
Mar 19, 2026 12:54	Ondřej Polanecký	CPPclang++18.1.3	Success	10,294
Mar 19, 2026 12:32	zielaj	CPPclang++18.1.3	Error
Mar 19, 2026 12:28	shartgepetto	CPPclang++18.1.3	Success	6,177
Mar 19, 2026 12:28	shartgepetto	CPPclang++18.1.3	Success	6,262
Mar 19, 2026 12:28	shartgepetto	CPPclang++18.1.3	Success	7,206
Mar 19, 2026 12:28	shartgepetto	CPPclang++18.1.3	Success	6,099
Mar 19, 2026 12:27	shartgepetto	CPPclang++18.1.3	Success	6,090
Mar 19, 2026 12:27	shartgepetto	CPPclang++18.1.3	Success	6,152
Mar 19, 2026 12:27	shartgepetto	CPPclang++18.1.3	Success	6,126
Mar 19, 2026 12:27	shartgepetto	CPPclang++18.1.3	Success	6,199
Mar 19, 2026 12:26	shartgepetto	CPPclang++18.1.3	Success	6,105
Mar 19, 2026 06:39	Genos0	CPPclang++18.1.3	Success	63,448+17.30 RP
Mar 19, 2026 06:29	Genos0	CPPclang++18.1.3	Success	71,859
Mar 19, 2026 06:20	Genos0	CPPg++13.3.0	Success	71,278
Mar 19, 2026 04:45	Joel Chong	CPPg++13.3.0	Error
Mar 19, 2026 04:43	Joel Chong	CPPg++13.3.0	Success	48,574+0.58 RP
Mar 19, 2026 04:40	Joel Chong	CPPg++13.3.0	Success	48,711+4.13 RP
Mar 19, 2026 04:17	Sriram Sami	CPPg++13.3.0	Success	2,068,751
Mar 19, 2026 03:11	Ondřej Polanecký	CPPg++13.3.0	Success	16,431
Mar 19, 2026 03:11	Ondřej Polanecký	CPPclang++18.1.3	Success	15,512
Mar 19, 2026 03:08	Ondřej Polanecký	CPPclang++18.1.3	Success	48,313
Mar 19, 2026 02:44	Ondřej Polanecký	CPPclang++18.1.3	Success	49,324
Mar 19, 2026 02:26	Ondřej Polanecký	CPPg++13.3.0	Success	46,610
Mar 19, 2026 02:21	Ondřej Polanecký	CPPg++13.3.0	Success	52,960
Mar 19, 2026 02:18	Ondřej Polanecký	CPPg++13.3.0	Success	9,623+53.47 RP
Mar 19, 2026 02:14	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 19, 2026 02:13	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 19, 2026 01:59	Ondřej Polanecký	CPPclang++18.1.3	Success	10,372
Mar 19, 2026 01:46	Ondřej Polanecký	CPPclang++18.1.3	Success	10,381
Mar 19, 2026 01:13	shartgepetto	CPPclang++18.1.3	Success	6,126
Mar 19, 2026 01:13	shartgepetto	CPPclang++18.1.3	Success	6,182
Mar 19, 2026 01:13	shartgepetto	CPPclang++18.1.3	Success	6,102
Mar 19, 2026 01:11	Ondřej Polanecký	CPPg++13.3.0	Success	10,370
Mar 19, 2026 01:11	Ondřej Polanecký	CPPclang++18.1.3	Success	10,360
Mar 19, 2026 01:06	Ondřej Polanecký	CPPclang++18.1.3	Success	47,762
Mar 19, 2026 00:59	zielaj	CPPclang++18.1.3	Success	3,530
Mar 19, 2026 00:58	zielaj	CPPclang++18.1.3	Success	3,521
Mar 19, 2026 00:58	Ondřej Polanecký	CPPclang++18.1.3	Success	10,145+103.72 RP
Mar 19, 2026 00:56	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 19, 2026 00:50	Ondřej Polanecký	CPPclang++18.1.3	Success	18,112
Mar 19, 2026 00:49	Ondřej Polanecký	CPPclang++18.1.3	Success	18,105
Mar 19, 2026 00:42	Dominique Garmier	CPPg++13.3.0	Success	11,565
Mar 19, 2026 00:40	shartgepetto	CPPclang++18.1.3	Success	6,301
Mar 19, 2026 00:40	shartgepetto	CPPclang++18.1.3	Success	6,261
Mar 19, 2026 00:40	shartgepetto	CPPclang++18.1.3	Success	6,336
Mar 19, 2026 00:34	zielaj	CPPclang++18.1.3	Success	3,815
Mar 19, 2026 00:34	zielaj	CPPclang++18.1.3	Success	3,882
Mar 19, 2026 00:32	Ondřej Polanecký	CPPclang++18.1.3	Success	11,338+211.43 RP
Mar 19, 2026 00:32	zielaj	CPPclang++18.1.3	Success	3,503
Mar 19, 2026 00:31	zielaj	CPPclang++18.1.3	Success	3,762
Mar 19, 2026 00:30	zielaj	CPPclang++18.1.3	Success	3,507
Mar 19, 2026 00:30	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 19, 2026 00:28	zielaj	CPPclang++18.1.3	Success	3,510
Mar 19, 2026 00:26	zielaj	CPPclang++18.1.3	Success	3,730
Mar 19, 2026 00:25	Ondřej Polanecký	CPPclang++18.1.3	Success	19,166
Mar 19, 2026 00:25	zielaj	CPPclang++18.1.3	Error
Mar 19, 2026 00:24	zielaj	CPPclang++18.1.3	Success	3,544
Mar 19, 2026 00:23	zielaj	CPPclang++18.1.3	Success	3,991
Mar 19, 2026 00:16	zielaj	CPPclang++18.1.3	Success	3,909
Mar 19, 2026 00:15	zielaj	CPPclang++18.1.3	Success	3,503
Mar 19, 2026 00:10	zielaj	CPPclang++18.1.3	Error
Mar 19, 2026 00:09	Dominique Garmier	CPPclang++18.1.3	Success	9,027
Mar 18, 2026 23:46	Dominique Garmier	CPPclang++18.1.3	Success	9,070
Mar 18, 2026 22:21	zielaj	CPPclang++18.1.3	Error
Mar 18, 2026 22:20	zielaj	CPPclang++18.1.3	Error
Mar 18, 2026 22:16	zielaj	CPPclang++18.1.3	Error
Mar 18, 2026 22:14	zielaj	CPPclang++18.1.3	Error
Mar 18, 2026 22:13	zielaj	CPPclang++18.1.3	Error
Mar 18, 2026 21:00	Joel Smith	CPPg++13.3.0	Success	56,007
Mar 18, 2026 20:57	Joel Smith	CPPg++13.3.0	Success	52,924+9.70 RP

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