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 21, 2026 03:20	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 03:02	Adewuyi Israel	CPPg++10.5.0	Success	392,893+20.62 RP
Apr 21, 2026 02:58	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:57	Adewuyi Israel	CPPg++10.5.0	Success	2,068,943
Apr 21, 2026 02:56	Adewuyi Israel	CPPg++13.3.0	Error
Apr 21, 2026 02:55	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:54	Adewuyi Israel	CPPg++10.5.0	Error
Apr 21, 2026 02:53	zielaj	CPPclang++18.1.3	Error
Apr 21, 2026 02:53	Adewuyi Israel	CPPg++10.5.0	Error
Apr 21, 2026 02:51	zielaj	CPPclang++19.1.1	Error
Apr 21, 2026 02:51	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:49	zielaj	CPPclang++18.1.3	Success	3,474
Apr 21, 2026 02:46	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:01	cashkaru	CPPg++10.5.0	Success	61,627
Apr 21, 2026 01:59	cashkaru	CPPclang++20.1.2	Success	61,310+20.22 RP
Apr 21, 2026 01:28	cashkaru	CPPclang++20.1.2	Success	70,881
Apr 21, 2026 01:13	cashkaru	CPPclang++20.1.2	Success	69,985+138.05 RP
Apr 21, 2026 00:47	cashkaru	CPPg++10.5.0	Success	2,068,718
Apr 21, 2026 00:46	cashkaru	CPPg++10.5.0	Success	2,066,550+4.84 RP
Apr 20, 2026 23:36	Taylor Dettling	RUSTrust-1.95.0	Success	51,394+13.60 RP
Apr 20, 2026 23:34	Taylor Dettling	RUSTrust-1.95.0	Error
Apr 20, 2026 23:31	Taylor Dettling	RUSTrust-1.95.0	Success	55,257+23.80 RP
Apr 20, 2026 23:30	Taylor Dettling	RUSTrust-1.95.0	Success	63,624+157.17 RP
Apr 20, 2026 22:22	Josu San Martin	CPPclang++17.0.6	Success	5,045
Apr 20, 2026 22:19	Josu San Martin	CPPclang++14.0.6	Success	5,301
Apr 20, 2026 22:18	Josu San Martin	CPPg++14.2.0	Success	5,791
Apr 20, 2026 22:15	Josu San Martin	CPPclang++19.1.1	Success	4,948+8.54 RP
Apr 20, 2026 22:14	Josu San Martin	CPPclang++20.1.2	Success	5,104
Apr 20, 2026 21:54	olliecrow	CPPclang++18.1.3	Success	5,915
Apr 20, 2026 21:53	olliecrow	CPPg++10.5.0	Success	8,180
Apr 20, 2026 21:22	Charles Cabergs	CPPg++13.3.0	Success	20,078
Apr 20, 2026 20:19	Charles Cabergs	CPPg++13.3.0	Success	63,333
Apr 20, 2026 18:26	Charles Cabergs	CPPg++13.3.0	Success	20,120
Apr 20, 2026 16:57	olliecrow	CPPclang++18.1.3	Error
Apr 20, 2026 16:55	olliecrow	CPPclang++18.1.3	Error
Apr 20, 2026 16:49	Ben	CPPclang++20.1.2	Success	23,508+11.74 RP
Apr 20, 2026 16:46	olliecrow	CPPclang++18.1.3	Error
Apr 20, 2026 16:44	Ben	CPPclang++18.1.3	Success	24,180
Apr 20, 2026 16:19	Ben	CPPclang++18.1.3	Success	24,666
Apr 20, 2026 16:18	Ben	CPPclang++18.1.3	Success	24,746
Apr 20, 2026 15:53	Ben	CPPclang++18.1.3	Success	24,175+15.86 RP
Apr 20, 2026 15:26	Ben	CPPclang++18.1.3	Success	25,139+2.14 RP
Apr 20, 2026 15:25	Ben	CPPclang++18.1.3	Success	25,275+66.17 RP
Apr 20, 2026 15:24	Ben	CPPclang++18.1.3	Success	30,351+60.62 RP
Apr 20, 2026 15:14	Ben	CPPclang++18.1.3	Success	38,349
Apr 20, 2026 14:32	Ben	CPPclang++18.1.3	Success	38,605
Apr 20, 2026 14:32	Ben	CPPclang++18.1.3	Success	38,695
Apr 20, 2026 14:31	Ben	CPPg++14.2.0	Error
Apr 20, 2026 14:28	Ben	CPPclang++20.1.2	Success	46,748
Apr 20, 2026 14:28	Ben	CPPclang++18.1.3	Success	44,880
Apr 20, 2026 14:19	Ben	CPPclang++18.1.3	Success	44,657
Apr 20, 2026 14:15	Ben	CPPclang++18.1.3	Success	52,579
Apr 20, 2026 13:49	Ben	CPPg++13.3.0	Error
Apr 20, 2026 13:49	Ben	CPPg++10.5.0	Success	38,414
Apr 20, 2026 13:47	Ben	CPPclang++18.1.3	Success	37,916
Apr 20, 2026 13:39	Yuriy Lyfenko	CPPg++14.2.0	Success	4,634
Apr 20, 2026 13:39	Ben	CPPg++13.3.0	Error
Apr 20, 2026 13:38	Ben	CPPclang++18.1.3	Success	37,194+96.28 RP
Apr 20, 2026 13:38	Yuriy Lyfenko	CPPg++10.5.0	Success	4,605
Apr 20, 2026 13:23	Ben	CPPclang++18.1.3	Success	57,945+172.58 RP
Apr 20, 2026 13:19	olliecrow	ZIG0.14.0	Success	5,976
Apr 20, 2026 13:16	olliecrow	RUSTrust-1.94.0	Success	5,879
Apr 20, 2026 13:03	olliecrow	CPPg++13.3.0	Success	7,008
Apr 20, 2026 12:23	wn	CPPg++14.2.0	Success	3,600
Apr 20, 2026 12:22	wn	CPPg++14.2.0	Success	3,596
Apr 20, 2026 12:13	wn	CPPg++14.2.0	Success	3,571
Apr 20, 2026 12:06	wn	CPPclang++20.1.2	Success	4,126
Apr 20, 2026 12:02	wn	CPPg++14.2.0	Success	3,552
Apr 20, 2026 12:02	olliecrow	ZIG0.14.0	Success	5,946
Apr 20, 2026 11:59	olliecrow	RUSTrust-1.94.0	Success	5,859
Apr 20, 2026 11:55	olliecrow	CSHARP9.0.14	Error
Apr 20, 2026 11:53	olliecrow	CPPg++13.3.0	Success	7,142
Apr 20, 2026 10:49	olliecrow	CPPg++13.3.0	Error
Apr 20, 2026 10:23	Ben	CPPclang++18.1.3	Error
Apr 19, 2026 09:52	wn	CPPclang++18.1.3	Success	4,690
Apr 19, 2026 09:48	wn	CPPclang++18.1.3	Success	4,323
Apr 19, 2026 09:45	wn	CPPclang++18.1.3	Success	4,203
Apr 19, 2026 09:42	wn	CPPclang++18.1.3	Success	4,200
Apr 19, 2026 09:39	wn	CPPclang++18.1.3	Success	4,263
Apr 19, 2026 09:38	wn	CPPclang++18.1.3	Success	4,172
Apr 19, 2026 09:35	wn	CPPclang++18.1.3	Success	4,334
Apr 19, 2026 09:33	wn	CPPclang++18.1.3	Success	4,101
Apr 19, 2026 09:33	wn	CPPg++13.3.0	Success	3,594
Apr 19, 2026 08:34	ArkadyRudenko	CPPclang++18.1.3	Error
Apr 19, 2026 08:23	wn	CPPg++13.3.0	Success	4,359
Apr 19, 2026 08:20	wn	CPPg++13.3.0	Success	3,560
Apr 19, 2026 08:19	Charles Cabergs	CPPclang++18.1.3	Success	21,190
Apr 19, 2026 08:19	wn	CPPclang++18.1.3	Error
Apr 19, 2026 08:09	wn	CPPg++13.3.0	Success	3,691
Apr 19, 2026 08:07	wn	CPPg++13.3.0	Error
Apr 19, 2026 08:06	wn	CPPg++13.3.0	Success	3,553
Apr 19, 2026 08:05	wn	CPPg++13.3.0	Error	+5.57 RP
Apr 19, 2026 08:04	wn	CPPg++13.3.0	Success	3,720
Apr 19, 2026 07:59	wn	CPPg++13.3.0	Success	3,727
Apr 19, 2026 07:45	wn	CPPg++13.3.0	Success	3,732
Apr 19, 2026 07:36	Charles Cabergs	CPPg++13.3.0	Success	20,220
Apr 19, 2026 07:12	wn	CPPg++13.3.0	Success	3,562
Apr 19, 2026 07:10	wn	CPPg++13.3.0	Error	+20.49 RP
Apr 19, 2026 07:09	wn	CPPg++13.3.0	Success	3,598
Apr 19, 2026 07:06	wn	CPPg++13.3.0	Success	3,575+23.28 RP

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