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
May 24, 2026 17:16	Victor Mercklé	CPPg++14.2.0	Success	4,626
May 24, 2026 17:10	Victor Mercklé	CPPg++14.2.0	Success	5,741
May 24, 2026 17:06	Victor Mercklé	CPPg++14.2.0	Success	7,840
May 24, 2026 16:58	Victor Mercklé	CPPg++14.2.0	Success	8,632
May 24, 2026 16:48	Victor Mercklé	CPPg++14.2.0	Success	4,591
May 24, 2026 16:38	Victor Mercklé	CPPg++14.2.0	Success	4,586
May 24, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Success	12,248
May 24, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Success	7,051
May 24, 2026 15:54	Victor Mercklé	CPPg++14.2.0	Success	9,925
May 24, 2026 15:49	Victor Mercklé	CPPg++14.2.0	Success	13,471
May 24, 2026 15:38	Victor Mercklé	CPPg++14.2.0	Success	10,263
May 24, 2026 15:31	Victor Mercklé	CPPg++14.2.0	Success	7,316
May 24, 2026 15:19	Victor Mercklé	CPPg++14.2.0	Error
May 24, 2026 15:15	Victor Mercklé	CPPg++14.2.0	Success	7,749
May 24, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	8,906
May 24, 2026 15:04	Victor Mercklé	CPPg++14.2.0	Success	22,279
May 24, 2026 14:58	Victor Mercklé	CPPg++14.2.0	Success	4,722
May 24, 2026 14:42	Victor Mercklé	CPPg++14.2.0	Success	14,624
May 24, 2026 14:31	Victor Mercklé	CPPg++14.2.0	Success	4,920
May 24, 2026 14:19	Victor Mercklé	CPPg++14.2.0	Success	36,268
May 24, 2026 14:02	Victor Mercklé	CPPg++14.2.0	Success	4,592
May 24, 2026 13:58	Victor Mercklé	CPPg++14.2.0	Success	4,581
May 24, 2026 13:54	Victor Mercklé	CPPg++14.2.0	Success	4,596
May 24, 2026 13:47	Victor Mercklé	CPPg++14.2.0	Success	17,531
May 24, 2026 13:35	Victor Mercklé	CPPg++14.2.0	Success	7,905
May 24, 2026 13:30	Victor Mercklé	CPPg++14.2.0	Error
May 24, 2026 13:27	Victor Mercklé	CPPg++14.2.0	Success	9,290
May 24, 2026 13:23	Victor Mercklé	CPPg++14.2.0	Success	8,137
May 24, 2026 13:19	Victor Mercklé	CPPg++14.2.0	Success	5,619
May 24, 2026 13:09	Victor Mercklé	CPPg++14.2.0	Success	4,875
May 24, 2026 13:04	Victor Mercklé	CPPg++14.2.0	Success	7,372
May 24, 2026 12:57	Victor Mercklé	CPPg++14.2.0	Success	5,313
May 24, 2026 12:49	Victor Mercklé	CPPg++14.2.0	Success	4,573
May 24, 2026 12:16	Victor Mercklé	CPPg++14.2.0	Success	5,796
May 24, 2026 12:13	Victor Mercklé	CPPg++14.2.0	Success	17,183
May 24, 2026 12:07	Victor Mercklé	CPPg++14.2.0	Success	5,117
May 24, 2026 12:05	Victor Mercklé	CPPg++14.2.0	Success	5,680
May 24, 2026 11:58	Victor Mercklé	CPPg++14.2.0	Success	6,235
May 24, 2026 11:50	Victor Mercklé	CPPg++14.2.0	Success	4,590
May 24, 2026 11:43	Victor Mercklé	CPPg++14.2.0	Success	23,971
May 24, 2026 11:36	Victor Mercklé	CPPg++14.2.0	Success	6,390
May 24, 2026 11:33	Victor Mercklé	CPPg++14.2.0	Success	10,253
May 24, 2026 11:20	Victor Mercklé	CPPg++14.2.0	Success	6,260
May 24, 2026 11:11	Victor Mercklé	CPPg++14.2.0	Success	4,615
May 23, 2026 23:36	Victor Mercklé	CPPg++14.2.0	Success	9,005
May 23, 2026 23:33	Victor Mercklé	CPPg++14.2.0	Success	10,335
May 23, 2026 23:25	Victor Mercklé	CPPg++14.2.0	Success	4,709
May 23, 2026 23:17	Victor Mercklé	CPPg++14.2.0	Success	20,602
May 23, 2026 22:49	Maya Rebholz	CPPg++10.5.0	Success	8,353
May 23, 2026 22:45	Maya Rebholz	CPPg++10.5.0	Success	8,342
May 23, 2026 22:42	Maya Rebholz	CPPg++10.5.0	Success	8,304+0.87 RP
May 23, 2026 22:37	Maya Rebholz	CPPg++10.5.0	Success	8,353
May 23, 2026 22:33	Maya Rebholz	CPPg++10.5.0	Success	8,310+24.68 RP
May 23, 2026 22:31	Maya Rebholz	CPPg++10.5.0	Success	8,484+3.74 RP
May 23, 2026 22:07	Maya Rebholz	CPPg++10.5.0	Error
May 23, 2026 21:20	Maya Rebholz	CPPg++10.5.0	Success	8,511+20.22 RP
May 23, 2026 21:14	Maya Rebholz	CPPg++10.5.0	Success	8,660+97.65 RP
May 23, 2026 17:18	Maya Rebholz	CPPg++10.5.0	Success	9,508
May 23, 2026 14:19	Craig Burton	CPPg++10.5.0	Success	88,975+112.39 RP
May 23, 2026 00:08	M-Rochat	CPPclang++17.0.6	Success	6,578
May 23, 2026 00:05	M-Rochat	CPPclang++17.0.6	Success	6,617
May 23, 2026 00:04	M-Rochat	CPPclang++17.0.6	Success	6,558+6.71 RP
May 23, 2026 00:01	M-Rochat	CPPclang++17.0.6	Success	6,587+2.07 RP
May 22, 2026 23:59	M-Rochat	CPPclang++17.0.6	Success	6,662
May 22, 2026 23:56	M-Rochat	CPPclang++17.0.6	Success	6,620
May 22, 2026 23:55	M-Rochat	CPPclang++17.0.6	Success	6,651
May 22, 2026 23:53	M-Rochat	CPPclang++17.0.6	Success	6,596+0.23 RP
May 22, 2026 23:51	M-Rochat	CPPclang++17.0.6	Success	6,597+0.46 RP
May 22, 2026 23:48	M-Rochat	CPPclang++17.0.6	Success	6,868
May 22, 2026 23:45	M-Rochat	CPPclang++17.0.6	Success	6,704
May 22, 2026 09:11	Victor Mercklé	CPPg++14.2.0	Success	12,048
May 22, 2026 09:07	Victor Mercklé	CPPg++14.2.0	Success	13,468
May 22, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	14,289
May 22, 2026 08:48	Victor Mercklé	CPPg++14.2.0	Success	4,582
May 22, 2026 08:44	Victor Mercklé	CPPg++14.2.0	Success	9,040
May 22, 2026 08:37	Victor Mercklé	CPPg++14.2.0	Success	8,121
May 22, 2026 08:32	Victor Mercklé	CPPg++14.2.0	Success	4,630
May 22, 2026 08:30	Victor Mercklé	CPPg++14.2.0	Success	4,588
May 22, 2026 08:15	Victor Mercklé	CPPg++14.2.0	Success	13,530
May 22, 2026 08:05	Victor Mercklé	CPPg++14.2.0	Success	4,613
May 22, 2026 07:56	Victor Mercklé	CPPg++14.2.0	Success	4,578
May 22, 2026 07:49	Victor Mercklé	CPPg++14.2.0	Success	4,575
May 22, 2026 07:17	Victor Mercklé	CPPg++14.2.0	Success	4,632
May 22, 2026 07:13	Victor Mercklé	CPPg++14.2.0	Success	4,568+0.48 RP
May 22, 2026 07:10	Victor Mercklé	CPPg++14.2.0	Success	4,575
May 21, 2026 22:02	M-Rochat	CPPclang++17.0.6	Success	6,599+0.69 RP
May 21, 2026 22:00	M-Rochat	CPPclang++17.0.6	Success	6,602
May 21, 2026 21:57	M-Rochat	CPPclang++17.0.6	Success	6,602+2.06 RP
May 21, 2026 21:56	M-Rochat	CPPclang++17.0.6	Success	6,626
May 21, 2026 21:54	M-Rochat	CPPclang++17.0.6	Success	6,611+23.87 RP
May 21, 2026 21:51	M-Rochat	CPPclang++17.0.6	Success	6,717+5.08 RP
May 21, 2026 21:49	M-Rochat	CPPclang++17.0.6	Success	6,941
May 21, 2026 21:44	M-Rochat	CPPclang++17.0.6	Success	6,824
May 21, 2026 21:41	M-Rochat	CPPclang++17.0.6	Success	7,870
May 21, 2026 21:39	M-Rochat	CPPclang++17.0.6	Success	6,938
May 21, 2026 21:37	M-Rochat	CPPg++13.3.0	Success	8,747
May 21, 2026 21:35	M-Rochat	CPPclang++17.0.6	Success	6,740+3.08 RP
May 21, 2026 17:07	Victor Mercklé	CPPg++14.2.0	Success	5,135
May 21, 2026 17:03	Victor Mercklé	CPPg++14.2.0	Success	4,638
May 21, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	4,644

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