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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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
Sep 11, 2026 15:31	Victor Mercklé	CPPg++14.2.0	Success	36,577
Sep 11, 2026 15:12	Victor Mercklé	CPPg++14.2.0	Success	3,633
Sep 11, 2026 08:04	Haha Expert	CPPclang++20.1.2	Error
Sep 11, 2026 08:01	Haha Expert	CPPclang++20.1.2	Success	45,129
Sep 11, 2026 07:57	Haha Expert	CPPclang++20.1.2	Success	43,749+0.03 RP
Sep 11, 2026 07:53	Haha Expert	CPPclang++20.1.2	Success	45,343
Sep 11, 2026 07:49	Haha Expert	CPPclang++20.1.2	Success	43,754+1.02 RP
Sep 11, 2026 07:16	Haha Expert	CPPclang++20.1.2	Success	43,950+27.77 RP
Sep 11, 2026 06:50	Haha Expert	CPPclang++20.1.2	Error
Sep 11, 2026 06:45	Haha Expert	CPPclang++20.1.2	Success	59,601
Sep 11, 2026 06:43	Haha Expert	CPPclang++20.1.2	Error
Sep 11, 2026 06:40	Haha Expert	CPPclang++20.1.2	Success	60,223
Sep 10, 2026 19:11	Victor Mercklé	CPPg++14.2.0	Success	3,537
Sep 10, 2026 18:47	Victor Mercklé	CPPg++14.2.0	Success	26,731
Sep 10, 2026 14:45	boop34	CPPclang++20.1.2	Success	9,200
Sep 10, 2026 07:38	Sai Putravu	CPPg++13.3.0	Success	39,948+107.03 RP
Sep 9, 2026 14:45	Victor Mercklé	CPPg++14.2.0	Success	46,609
Sep 9, 2026 13:45	Victor Mercklé	CPPg++14.2.0	Success	37,277
Sep 9, 2026 13:20	Josu San Martin	CPPclang++20.1.2	Error
Sep 9, 2026 13:07	Victor Mercklé	CPPg++14.2.0	Success	3,610
Sep 9, 2026 12:33	Victor Mercklé	CPPg++14.2.0	Success	36,416
Sep 8, 2026 22:12	Victor Mercklé	CPPg++14.2.0	Success	30,746
Sep 8, 2026 21:52	Victor Mercklé	CPPg++14.2.0	Success	3,827
Sep 8, 2026 21:34	Victor Mercklé	CPPg++14.2.0	Success	35,397
Sep 8, 2026 21:27	Victor Mercklé	RUSTrust-1.95.0	Success	3,555
Sep 8, 2026 21:24	Victor Mercklé	CPPg++14.2.0	Success	43,164
Sep 8, 2026 21:20	Victor Mercklé	RUSTrust-1.95.0	Success	3,491+40.58 RP
Sep 8, 2026 21:07	Victor Mercklé	CPPg++14.2.0	Success	3,563
Sep 8, 2026 20:55	Victor Mercklé	CPPg++14.2.0	Success	16,611
Sep 8, 2026 20:45	Victor Mercklé	CPPg++14.2.0	Success	54,053
Sep 8, 2026 20:43	Victor Mercklé	GOgo1.26.2	Success	3,679
Sep 8, 2026 20:35	Victor Mercklé	CPPg++14.2.0	Success	36,798
Sep 8, 2026 20:32	Victor Mercklé	ZIG0.16.0	Success	3,571
Sep 8, 2026 20:29	Victor Mercklé	ZIG0.16.0	Success	3,498+69.43 RP
Sep 8, 2026 20:23	Victor Mercklé	CPPg++14.2.0	Success	45,253
Sep 8, 2026 20:15	Victor Mercklé	CPPg++14.2.0	Success	43,083
Sep 8, 2026 20:06	Victor Mercklé	CPPg++14.2.0	Success	41,030
Sep 8, 2026 20:01	Victor Mercklé	RUSTrust-1.95.0	Success	3,663
Sep 8, 2026 19:59	Victor Mercklé	CPPg++14.2.0	Success	3,593
Sep 8, 2026 19:53	Victor Mercklé	RUSTrust-1.95.0	Success	3,660
Sep 8, 2026 19:51	Victor Mercklé	CPPg++14.2.0	Success	3,551
Sep 8, 2026 19:40	Victor Mercklé	CPPg++14.2.0	Success	3,739
Sep 8, 2026 19:31	Victor Mercklé	CPPg++14.2.0	Success	3,826
Sep 8, 2026 19:27	Victor Mercklé	RUSTrust-1.95.0	Success	3,658
Sep 8, 2026 19:18	Victor Mercklé	CPPg++14.2.0	Success	3,540+62.43 RP
Sep 8, 2026 19:08	Victor Mercklé	CPPg++14.2.0	Success	3,725
Sep 8, 2026 19:04	Victor Mercklé	GOgo1.26.2	Success	3,710
Sep 8, 2026 18:58	Victor Mercklé	CPPg++14.2.0	Success	40,212
Sep 8, 2026 18:58	Victor Mercklé	GOgo1.26.2	Success	3,705
Sep 8, 2026 18:51	Victor Mercklé	GOgo1.26.2	Success	3,722
Sep 8, 2026 18:47	Victor Mercklé	CPPg++14.2.0	Success	3,621
Sep 8, 2026 18:26	Victor Mercklé	CPPg++14.2.0	Success	3,946
Sep 8, 2026 18:22	Victor Mercklé	CSHARP10.0.7	Success	3,648+33.40 RP
Sep 8, 2026 18:13	Victor Mercklé	CPPg++14.2.0	Success	39,923
Sep 8, 2026 18:09	Victor Mercklé	CSHARP10.0.7	Success	3,711
Sep 8, 2026 17:59	Victor Mercklé	CPPg++14.2.0	Success	26,864
Sep 8, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	30,186
Sep 8, 2026 17:43	Victor Mercklé	CSHARP10.0.7	Success	3,693+80.40 RP
Sep 8, 2026 17:42	Victor Mercklé	CPPg++14.2.0	Success	40,305
Sep 8, 2026 17:32	Victor Mercklé	CPPg++14.2.0	Success	41,624
Sep 8, 2026 17:24	Victor Mercklé	CPPg++14.2.0	Success	76,194
Sep 8, 2026 17:06	Victor Mercklé	CPPg++14.2.0	Success	9,019
Sep 8, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	36,756
Sep 8, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Success	4,168
Sep 8, 2026 15:25	Victor Mercklé	CPPg++14.2.0	Success	7,510
Sep 8, 2026 15:17	Victor Mercklé	CPPg++14.2.0	Success	17,884
Sep 8, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	17,503
Sep 8, 2026 15:02	Victor Mercklé	CPPg++14.2.0	Success	4,209
Sep 8, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Success	4,538
Sep 8, 2026 14:27	Victor Mercklé	CPPg++14.2.0	Success	3,748
Sep 8, 2026 14:14	Victor Mercklé	CPPg++14.2.0	Success	3,709
Sep 8, 2026 13:58	Victor Mercklé	CPPg++14.2.0	Success	3,732
Sep 8, 2026 13:45	Victor Mercklé	CPPg++14.2.0	Success	3,731
Sep 8, 2026 13:37	Victor Mercklé	CPPg++14.2.0	Success	30,413
Sep 8, 2026 13:18	Victor Mercklé	CPPg++14.2.0	Success	16,902
Sep 8, 2026 13:08	Victor Mercklé	CPPg++14.2.0	Success	30,123
Sep 8, 2026 13:00	Victor Mercklé	CPPg++14.2.0	Success	10,246
Sep 8, 2026 12:51	Victor Mercklé	CPPg++14.2.0	Success	4,230
Sep 8, 2026 12:42	Victor Mercklé	CPPg++14.2.0	Success	4,013
Sep 8, 2026 12:22	Victor Mercklé	CPPg++14.2.0	Success	4,044
Sep 8, 2026 12:13	Victor Mercklé	CPPg++14.2.0	Success	5,342
Sep 8, 2026 12:07	Victor Mercklé	CPPg++14.2.0	Success	6,633
Sep 8, 2026 11:58	Victor Mercklé	CPPg++14.2.0	Success	4,544
Sep 8, 2026 11:49	Victor Mercklé	CPPg++14.2.0	Success	4,570
Sep 8, 2026 11:34	Victor Mercklé	CPPg++14.2.0	Success	5,000
Sep 8, 2026 11:15	Victor Mercklé	CPPg++14.2.0	Success	4,892
Sep 8, 2026 10:53	Victor Mercklé	CPPg++14.2.0	Success	4,318
Sep 8, 2026 10:41	Victor Mercklé	CPPg++14.2.0	Success	4,111
Sep 8, 2026 10:35	Victor Mercklé	CPPg++14.2.0	Success	4,212
Sep 8, 2026 10:25	Victor Mercklé	CPPg++14.2.0	Success	4,644
Sep 8, 2026 10:16	Victor Mercklé	CPPg++14.2.0	Success	4,794
Sep 8, 2026 10:08	Victor Mercklé	CPPg++14.2.0	Success	4,647
Sep 8, 2026 09:58	Victor Mercklé	CPPg++14.2.0	Success	6,991
Sep 8, 2026 09:39	Victor Mercklé	CPPg++14.2.0	Success	3,784
Sep 8, 2026 09:32	Victor Mercklé	CPPg++14.2.0	Success	3,835
Sep 8, 2026 09:20	Victor Mercklé	CPPg++14.2.0	Success	3,910
Sep 8, 2026 09:12	Victor Mercklé	CPPg++14.2.0	Success	4,240
Sep 8, 2026 09:03	Victor Mercklé	CPPg++14.2.0	Success	4,319
Sep 8, 2026 08:47	Victor Mercklé	CPPg++14.2.0	Success	4,643
Sep 8, 2026 08:37	Victor Mercklé	CPPg++14.2.0	Success	4,558

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