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
Aug 9, 2025 09:18	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 09:11	Ashish Ahuja	CPPg++13.3.0	Success	2,315,473
Aug 9, 2025 08:57	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 08:50	Ashish Ahuja	CPPg++13.3.0	Success	2,308,018
Aug 9, 2025 08:43	Ashish Ahuja	CPPg++13.3.0	Success	2,306,449
Aug 9, 2025 08:41	Ashish Ahuja	CPPg++13.3.0	Success	2,308,232
Aug 9, 2025 08:38	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 08:28	Ashish Ahuja	CPPg++13.3.0	Success	2,306,780
Aug 9, 2025 08:25	Ashish Ahuja	CPPg++13.3.0	Success	2,303,143
Aug 9, 2025 05:23	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 05:20	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 05:16	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 03:40	Leon Zhao	CPPg++13.3.0	Success	14,113
Aug 9, 2025 03:30	Leon Zhao	CPPg++13.3.0	Success	14,036+0.10 RP
Aug 9, 2025 03:20	Leon Zhao	CPPg++13.3.0	Success	14,038+41.80 RP
Aug 9, 2025 02:33	Leon Zhao	CPPg++13.3.0	Success	14,913+31.33 RP
Aug 9, 2025 02:30	Leon Zhao	CPPg++13.3.0	Success	16,077
Aug 9, 2025 02:28	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 02:28	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:41	Leon Zhao	CPPg++13.3.0	Success	15,644+5.47 RP
Aug 9, 2025 01:40	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:40	Leon Zhao	CPPg++13.3.0	Success	15,779+7.66 RP
Aug 9, 2025 01:39	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:38	Leon Zhao	CPPg++13.3.0	Success	15,972+30.29 RP
Aug 9, 2025 01:36	Leon Zhao	CPPg++13.3.0	Success	17,625
Aug 9, 2025 00:55	Leon Zhao	CPPg++13.3.0	Success	16,784+0.25 RP
Aug 9, 2025 00:49	Leon Zhao	CPPg++13.3.0	Success	17,466
Aug 9, 2025 00:41	Leon Zhao	CPPg++13.3.0	Success	16,791+0.04 RP
Aug 9, 2025 00:40	Leon Zhao	CPPg++13.3.0	Success	17,521
Aug 9, 2025 00:36	Leon Zhao	CPPg++13.3.0	Success	16,794
Aug 9, 2025 00:33	Leon Zhao	CPPg++13.3.0	Success	18,315
Aug 9, 2025 00:30	Leon Zhao	CPPg++13.3.0	Success	16,797
Aug 9, 2025 00:29	Leon Zhao	CPPg++13.3.0	Success	16,792+12.13 RP
Aug 9, 2025 00:26	Leon Zhao	CPPg++13.3.0	Success	18,764
Aug 9, 2025 00:24	Leon Zhao	CPPg++13.3.0	Success	17,461
Aug 9, 2025 00:20	Leon Zhao	CPPg++13.3.0	Success	17,467
Aug 9, 2025 00:19	Leon Zhao	CPPg++13.3.0	Success	17,141+17.75 RP
Aug 8, 2025 22:48	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:45	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:44	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:41	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:40	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:33	Ashish Ahuja	CPPg++13.3.0	Success	2,306,355
Aug 8, 2025 21:25	Ashish Ahuja	CPPg++13.3.0	Success	2,292,718
Aug 8, 2025 21:22	Ashish Ahuja	CPPg++13.3.0	Success	2,290,410
Aug 8, 2025 21:11	Leon Zhao	CPPg++13.3.0	Success	17,679+1.34 RP
Aug 8, 2025 21:08	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 21:00	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:55	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:33	Leon Zhao	CPPg++13.3.0	Success	17,721+17.23 RP
Aug 8, 2025 20:30	Ashish Ahuja	CPPg++13.3.0	Success	2,701,002
Aug 8, 2025 20:25	Leon Zhao	CPPg++13.3.0	Success	18,329
Aug 8, 2025 20:25	Ashish Ahuja	CPPg++13.3.0	Success	2,704,135
Aug 8, 2025 20:22	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:09	Ashish Ahuja	CPPg++13.3.0	Success	2,725,245
Aug 8, 2025 20:00	Ashish Ahuja	CPPg++13.3.0	Success	2,709,348
Aug 8, 2025 19:51	Ashish Ahuja	CPPg++13.3.0	Success	2,688,797
Aug 8, 2025 19:51	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 19:50	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 19:37	Leon Zhao	CPPg++13.3.0	Success	18,280
Aug 8, 2025 19:33	Leon Zhao	CPPg++13.3.0	Success	18,284
Aug 8, 2025 19:33	Ryhbt	CPPg++13.3.0	Success	58,860
Aug 8, 2025 19:32	Ryhbt	CPPg++13.3.0	Success	62,504
Aug 8, 2025 19:15	Ryhbt	CPPg++13.3.0	Success	58,851+0.04 RP
Aug 8, 2025 19:11	Ryhbt	CPPg++13.3.0	Success	58,864+22.42 RP
Aug 8, 2025 19:09	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 19:04	Leon Zhao	CPPg++13.3.0	Success	18,279+165.54 RP
Aug 8, 2025 19:03	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:56	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:52	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:33	Ryhbt	CPPg++13.3.0	Success	69,347
Aug 8, 2025 18:29	Ryhbt	CPPg++13.3.0	Success	69,390
Aug 8, 2025 18:22	Ryhbt	CPPg++13.3.0	Success	67,815+9.14 RP
Aug 8, 2025 18:21	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:16	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:11	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:08	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:07	Ryhbt	CPPg++13.3.0	Success	99,252
Aug 8, 2025 18:04	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:03	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 17:59	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 17:23	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 17:22	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 16:30	Leon Zhao	CPPg++13.3.0	Success	26,262
Aug 8, 2025 16:17	Leon Zhao	CPPg++13.3.0	Success	26,492
Aug 8, 2025 15:25	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 15:22	Ashish Ahuja	CPPg++13.3.0	Success	2,698,410
Aug 8, 2025 15:22	Ashish Ahuja	CPPg++13.3.0	Success	2,694,391
Aug 8, 2025 13:12	Ashish Ahuja	CPPg++13.3.0	Success	70,101+137.81 RP
Aug 8, 2025 05:51	Ashish Ahuja	CPPg++13.3.0	Success	2,707,053
Aug 8, 2025 05:42	Ashish Ahuja	CPPg++13.3.0	Success	2,164,710
Aug 8, 2025 05:38	Ashish Ahuja	CPPg++13.3.0	Success	2,163,985
Aug 8, 2025 05:28	Ashish Ahuja	CPPg++13.3.0	Success	2,067,281
Aug 8, 2025 03:27	Leon Zhao	CPPg++13.3.0	Success	26,489
Aug 8, 2025 03:12	Leon Zhao	CPPg++13.3.0	Success	42,638
Aug 8, 2025 03:03	Leon Zhao	CPPg++13.3.0	Success	26,210+0.04 RP
Aug 8, 2025 03:00	Leon Zhao	CPPg++13.3.0	Success	26,236
Aug 8, 2025 02:53	Leon Zhao	CPPg++13.3.0	Success	26,213+58.68 RP
Aug 8, 2025 02:32	Leon Zhao	CPPg++13.3.0	Success	31,548
Aug 8, 2025 02:32	Leon Zhao	CPPg++13.3.0	Success	31,558

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