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 8, 2026 08:37	Victor Mercklé	CPPg++14.2.0	Success	4,558
Sep 8, 2026 08:29	Victor Mercklé	CPPg++14.2.0	Success	4,580
Sep 8, 2026 08:17	Victor Mercklé	CPPg++14.2.0	Success	4,700
Sep 8, 2026 07:56	Victor Mercklé	CPPg++14.2.0	Success	7,961
Sep 8, 2026 07:45	Victor Mercklé	CPPg++14.2.0	Success	9,874
Sep 8, 2026 06:47	Victor Mercklé	CPPg++14.2.0	Success	4,376
Sep 8, 2026 06:26	Victor Mercklé	CPPg++14.2.0	Success	3,620+0.76 RP
Sep 8, 2026 06:18	Victor Mercklé	CPPg++14.2.0	Success	3,643
Sep 8, 2026 06:10	Victor Mercklé	CPPg++14.2.0	Success	4,065
Sep 8, 2026 06:02	Victor Mercklé	CPPg++14.2.0	Success	4,656
Sep 8, 2026 05:58	Victor Mercklé	CPPg++14.2.0	Success	8,454
Sep 8, 2026 05:53	Victor Mercklé	CPPg++14.2.0	Success	6,578
Sep 8, 2026 02:19	Victor Mercklé	CPPg++14.2.0	Success	87,091
Sep 8, 2026 02:04	Victor Mercklé	CPPg++14.2.0	Success	103,222
Sep 8, 2026 01:46	Victor Mercklé	CPPg++14.2.0	Success	68,071
Sep 8, 2026 01:24	Victor Mercklé	CPPg++14.2.0	Success	3,621+12.90 RP
Sep 8, 2026 00:45	Victor Mercklé	CPPg++14.2.0	Success	56,347
Sep 8, 2026 00:19	Victor Mercklé	CPPg++14.2.0	Success	3,963
Sep 8, 2026 00:09	Victor Mercklé	CPPg++14.2.0	Success	4,392
Sep 7, 2026 23:56	Victor Mercklé	CPPg++14.2.0	Success	4,175
Sep 7, 2026 23:49	Victor Mercklé	CPPg++14.2.0	Success	4,300
Sep 7, 2026 23:25	Victor Mercklé	CPPg++14.2.0	Success	4,237
Sep 7, 2026 23:16	Victor Mercklé	CPPg++14.2.0	Success	4,020
Sep 7, 2026 22:48	Victor Mercklé	CPPg++14.2.0	Success	4,126
Sep 7, 2026 22:22	Victor Mercklé	CPPg++14.2.0	Success	4,417
Sep 7, 2026 22:12	Victor Mercklé	CPPg++14.2.0	Success	4,086
Sep 7, 2026 21:56	Victor Mercklé	CPPg++14.2.0	Success	4,084
Sep 7, 2026 21:31	Victor Mercklé	CPPg++14.2.0	Success	4,328
Sep 7, 2026 21:28	Sai Putravu	CPPg++10.5.0	Success	69,785+9.51 RP
Sep 7, 2026 21:24	Victor Mercklé	CPPg++14.2.0	Success	4,210
Sep 7, 2026 20:52	Victor Mercklé	CPPg++14.2.0	Success	35,319
Sep 7, 2026 20:42	Victor Mercklé	CPPg++14.2.0	Success	4,306
Sep 7, 2026 20:33	neel-bhavsar	CPPg++10.5.0	Success	75,761
Sep 7, 2026 20:32	neel-bhavsar	CPPg++10.5.0	Success	76,232
Sep 7, 2026 20:25	neel-bhavsar	CPPclang++20.1.2	Error
Sep 7, 2026 20:23	neel-bhavsar	CPPg++10.5.0	Error
Sep 7, 2026 20:14	Victor Mercklé	CPPg++14.2.0	Success	25,657
Sep 7, 2026 20:01	Victor Mercklé	CPPg++14.2.0	Success	51,197
Sep 7, 2026 20:00	Sai Putravu	CPPg++10.5.0	Success	74,748+128.95 RP
Sep 7, 2026 19:56	neel-bhavsar	CPPg++10.5.0	Success	70,741
Sep 7, 2026 19:55	neel-bhavsar	CPPg++10.5.0	Success	63,246+0.29 RP
Sep 7, 2026 19:54	neel-bhavsar	CPPg++10.5.0	Success	63,362+45.56 RP
Sep 7, 2026 19:52	Victor Mercklé	CPPg++14.2.0	Success	47,213
Sep 7, 2026 19:50	neel-bhavsar	CPPg++10.5.0	Error
Sep 7, 2026 19:46	neel-bhavsar	CPPg++10.5.0	Error
Sep 7, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	45,946
Sep 7, 2026 19:14	Sai Putravu	CPPg++13.3.0	Success	2,067,503+4.84 RP
Sep 7, 2026 19:08	neel-bhavsar	CPPg++10.5.0	Success	90,656
Sep 7, 2026 19:07	neel-bhavsar	CPPg++10.5.0	Success	93,462
Sep 7, 2026 19:06	neel-bhavsar	CPPg++10.5.0	Success	93,435
Sep 7, 2026 18:43	neel-bhavsar	CPPg++10.5.0	Success	89,078+112.26 RP
Sep 7, 2026 18:16	Victor Mercklé	CPPg++14.2.0	Success	41,059
Sep 7, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	4,941
Sep 7, 2026 17:44	Victor Mercklé	CPPg++14.2.0	Success	24,507
Sep 7, 2026 17:37	Victor Mercklé	CPPg++14.2.0	Success	5,134
Sep 7, 2026 17:12	Victor Mercklé	CPPg++14.2.0	Success	14,545
Sep 7, 2026 17:08	Victor Mercklé	CPPg++14.2.0	Success	4,625
Sep 7, 2026 16:59	Victor Mercklé	CPPg++14.2.0	Success	4,938
Sep 7, 2026 16:43	Victor Mercklé	CPPg++14.2.0	Success	4,820
Sep 7, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Success	4,781
Sep 7, 2026 16:25	Victor Mercklé	CPPg++14.2.0	Success	5,887
Sep 7, 2026 16:03	Victor Mercklé	CPPg++14.2.0	Success	5,403
Sep 7, 2026 15:21	Kevin Peters	CPPg++10.5.0	Success	62,766
Sep 7, 2026 15:19	Kevin Peters	CPPg++10.5.0	Success	73,961
Sep 7, 2026 15:17	Kevin Peters	CPPg++10.5.0	Success	81,303
Sep 7, 2026 15:15	Kevin Peters	CPPg++10.5.0	Success	67,695
Sep 7, 2026 15:14	Kevin Peters	CPPg++10.5.0	Success	74,231
Sep 7, 2026 15:12	Kevin Peters	CPPg++10.5.0	Success	62,674
Sep 7, 2026 15:10	Kevin Peters	CPPg++10.5.0	Success	62,583+11.06 RP
Sep 7, 2026 15:06	Kevin Peters	CPPg++10.5.0	Success	70,860
Sep 7, 2026 15:05	Kevin Peters	CPPg++10.5.0	Success	67,239+0.02 RP
Sep 7, 2026 15:03	Kevin Peters	CPPg++10.5.0	Success	67,246+0.08 RP
Sep 7, 2026 15:01	Kevin Peters	CPPg++10.5.0	Success	70,751
Sep 7, 2026 14:54	Kevin Peters	CPPg++10.5.0	Success	67,283+7.23 RP
Sep 7, 2026 14:52	Kevin Peters	CPPg++10.5.0	Success	70,723+0.19 RP
Sep 7, 2026 14:51	Kevin Peters	CPPg++10.5.0	Success	71,649
Sep 7, 2026 14:46	Kevin Peters	CPPg++10.5.0	Success	70,819+28.98 RP
Sep 7, 2026 14:46	Kevin Peters	CPPg++10.5.0	Error
Sep 7, 2026 14:44	Kevin Peters	CPPg++10.5.0	Error
Sep 7, 2026 14:43	Kevin Peters	CPPg++10.5.0	Error
Sep 7, 2026 14:42	Kevin Peters	CPPg++10.5.0	Error
Sep 7, 2026 14:05	Kevin Peters	CPPg++10.5.0	Success	89,105+112.23 RP
Sep 6, 2026 16:07	Kevin Heavey	CSHARP9.0.18	Success	3,814
Sep 6, 2026 16:03	Kevin Heavey	CSHARP9.0.18	Success	3,818
Sep 6, 2026 15:34	Kevin Heavey	CSHARP9.0.18	Success	3,962
Sep 6, 2026 15:31	Kevin Heavey	CSHARP9.0.18	Success	3,806+17.15 RP
Sep 6, 2026 15:27	Kevin Heavey	CSHARP9.0.18	Success	3,831+42.89 RP
Sep 6, 2026 15:23	Kevin Heavey	CSHARP9.0.18	Success	3,895+21.57 RP
Sep 6, 2026 12:24	Kevin Heavey	CPPg++10.5.0	Success	3,724
Sep 6, 2026 12:22	Kevin Heavey	GOgo1.26.2	Success	3,538
Sep 6, 2026 12:19	Kevin Heavey	GOgo1.26.2	Success	3,559
Sep 6, 2026 12:16	Kevin Heavey	CPPg++10.5.0	Success	3,614
Sep 6, 2026 12:15	Kevin Heavey	CPPg++10.5.0	Success	3,823
Sep 6, 2026 12:13	Kevin Heavey	CPPg++10.5.0	Success	3,643
Sep 6, 2026 12:11	Kevin Heavey	CPPg++10.5.0	Success	3,791
Sep 6, 2026 12:10	CheckHarry	CPPg++14.2.0	Success	3,999
Sep 6, 2026 12:10	CheckHarry	CPPg++14.2.0	Success	4,002
Sep 6, 2026 12:10	CheckHarry	CPPg++14.2.0	Success	4,014
Sep 6, 2026 12:10	CheckHarry	CPPg++14.2.0	Success	3,995
Sep 6, 2026 12:09	Kevin Heavey	GOgo1.26.2	Success	3,539

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