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 14, 2026 15:36	Kevin Heavey	CPPg++10.5.0	Success	3,551
Sep 14, 2026 15:34	Kevin Heavey	CPPg++10.5.0	Success	3,563
Sep 14, 2026 15:33	Kevin Heavey	CPPg++10.5.0	Success	3,567
Sep 14, 2026 13:21	Kevin Heavey	GOgo1.26.2	Success	3,663
Sep 14, 2026 13:14	Kevin Heavey	CPPg++10.5.0	Success	3,658
Sep 14, 2026 13:09	Kevin Heavey	CPPg++10.5.0	Success	3,810
Sep 14, 2026 12:54	boop34	CPPg++14.2.0	Success	9,064+5.00 RP
Sep 14, 2026 12:25	Victor Mercklé	CPPg++14.2.0	Success	91,253
Sep 14, 2026 12:24	Victor Mercklé	CPPg++14.2.0	Success	3,565
Sep 14, 2026 12:11	Victor Mercklé	CPPg++14.2.0	Success	51,729
Sep 14, 2026 12:00	Victor Mercklé	CPPg++14.2.0	Success	47,087
Sep 14, 2026 11:51	Victor Mercklé	CPPg++14.2.0	Success	49,103
Sep 14, 2026 11:33	Victor Mercklé	CPPg++14.2.0	Success	3,570
Sep 14, 2026 10:59	Kevin Heavey	CPPg++10.5.0	Success	3,554
Sep 14, 2026 10:57	Haha Expert	ZIG0.16.0	Success	47,501
Sep 14, 2026 10:57	Kevin Heavey	CPPg++10.5.0	Success	3,562
Sep 14, 2026 10:56	Victor Mercklé	CPPg++14.2.0	Success	4,695
Sep 14, 2026 10:55	Kevin Heavey	CPPg++10.5.0	Success	3,666
Sep 14, 2026 10:54	Kevin Heavey	CPPg++10.5.0	Success	3,837+5.00 RP
Sep 14, 2026 10:47	Victor Mercklé	CPPg++14.2.0	Success	4,531
Sep 14, 2026 10:35	Haha Expert	CPPg++14.2.0	Success	37,100+4.58 RP
Sep 14, 2026 09:07	Victor Mercklé	CPPg++14.2.0	Success	3,479
Sep 14, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	61,237
Sep 14, 2026 07:05	Haha Expert	CPPg++14.2.0	Success	37,741+41.39 RP
Sep 14, 2026 06:12	Victor Mercklé	CPPg++14.2.0	Success	3,519
Sep 14, 2026 05:33	Victor Mercklé	CPPg++14.2.0	Success	3,526
Sep 14, 2026 04:07	Victor Mercklé	CPPg++14.2.0	Success	5,063
Sep 14, 2026 03:24	Victor Mercklé	CPPg++14.2.0	Success	4,272
Sep 14, 2026 01:09	Victor Mercklé	CPPg++14.2.0	Success	3,573+5.00 RP
Sep 14, 2026 00:34	drewbumpas	CPPg++10.5.0	Success	52,521+1.04 RP
Sep 14, 2026 00:32	drewbumpas	CPPg++10.5.0	Success	75,374
Sep 14, 2026 00:30	drewbumpas	CPPg++10.5.0	Error
Sep 14, 2026 00:29	drewbumpas	CPPg++10.5.0	Error
Sep 14, 2026 00:23	drewbumpas	CPPg++10.5.0	Success	55,820
Sep 14, 2026 00:22	drewbumpas	CPPg++10.5.0	Success	52,810+28.56 RP
Sep 14, 2026 00:18	drewbumpas	CPPg++10.5.0	Success	62,190+34.22 RP
Sep 14, 2026 00:16	drewbumpas	CPPg++10.5.0	Success	79,000+57.86 RP
Sep 14, 2026 00:12	drewbumpas	CPPg++10.5.0	Success	145,507+41.33 RP
Sep 14, 2026 00:03	drewbumpas	CPPg++10.5.0	Success	365,016+8.19 RP
Sep 14, 2026 00:00	drewbumpas	CPPg++14.2.0	Success	523,510+5.00 RP
Sep 13, 2026 23:56	drewbumpas	CPPg++14.2.0	Error
Sep 13, 2026 23:55	drewbumpas	CPPg++14.2.0	Error
Sep 13, 2026 23:50	drewbumpas	CPPg++14.2.0	Success	520,569+14.17 RP
Sep 13, 2026 23:49	drewbumpas	CPPg++14.2.0	Error
Sep 13, 2026 23:45	drewbumpas	CPPg++14.2.0	Success	1,983,114+5.04 RP
Sep 13, 2026 23:44	drewbumpas	CPPg++14.2.0	Error
Sep 13, 2026 23:31	Victor Mercklé	CPPg++14.2.0	Success	3,537
Sep 13, 2026 22:33	Victor Mercklé	CPPg++14.2.0	Success	3,500
Sep 13, 2026 22:06	Victor Mercklé	CPPg++14.2.0	Success	3,520
Sep 13, 2026 21:38	Victor Mercklé	CPPg++14.2.0	Success	4,250
Sep 13, 2026 21:17	Victor Mercklé	CPPg++14.2.0	Success	4,925
Sep 13, 2026 19:14	Victor Mercklé	CPPg++14.2.0	Success	3,544
Sep 13, 2026 18:02	Victor Mercklé	CPPg++14.2.0	Success	3,470+12.40 RP
Sep 13, 2026 17:26	Victor Mercklé	CPPg++14.2.0	Success	3,485+4.93 RP
Sep 13, 2026 16:12	Kita Renji	CPPg++10.5.0	Success	6,811+287.58 RP
Sep 13, 2026 15:51	Kita Renji	CPPg++14.2.0	Success	8,470+475.87 RP
Sep 13, 2026 15:21	Kita Renji	CPPg++10.5.0	Success	14,189+704.77 RP
Sep 12, 2026 16:12	Kevin Heavey	RUSTrust-1.95.0	Success	3,832
Sep 12, 2026 16:10	Kevin Heavey	RUSTrust-1.95.0	Success	3,901
Sep 12, 2026 16:09	Kevin Heavey	RUSTrust-1.95.0	Success	3,910
Sep 12, 2026 16:07	Kevin Heavey	RUSTrust-1.95.0	Success	3,790
Sep 12, 2026 16:05	Kevin Heavey	RUSTrust-1.95.0	Success	3,834
Sep 12, 2026 16:04	Kevin Heavey	RUSTrust-1.95.0	Success	3,894
Sep 12, 2026 16:02	Kevin Heavey	RUSTrust-1.95.0	Success	3,891
Sep 12, 2026 16:00	Kevin Heavey	RUSTrust-1.95.0	Success	3,808
Sep 12, 2026 15:59	Kevin Heavey	RUSTrust-1.95.0	Success	3,729
Sep 12, 2026 15:57	Kevin Heavey	RUSTrust-1.95.0	Success	3,773
Sep 12, 2026 15:56	Kevin Heavey	RUSTrust-1.95.0	Success	3,862
Sep 12, 2026 15:54	Kevin Heavey	RUSTrust-1.95.0	Success	3,787
Sep 12, 2026 15:09	Kevin Heavey	RUSTrust-1.95.0	Success	3,907
Sep 12, 2026 15:06	Kevin Heavey	RUSTrust-1.95.0	Success	3,819
Sep 12, 2026 15:04	Kevin Heavey	RUSTrust-1.95.0	Success	56,119
Sep 12, 2026 15:02	Kevin Heavey	RUSTrust-1.95.0	Success	3,833
Sep 12, 2026 15:01	Kevin Heavey	RUSTrust-1.95.0	Success	56,186
Sep 12, 2026 14:59	Kevin Heavey	RUSTrust-1.95.0	Success	3,839
Sep 12, 2026 14:57	Kevin Heavey	RUSTrust-1.95.0	Success	56,158
Sep 12, 2026 14:55	Kevin Heavey	RUSTrust-1.95.0	Success	3,847
Sep 12, 2026 14:53	Kevin Heavey	RUSTrust-1.95.0	Success	3,835
Sep 12, 2026 01:08	Victor Mercklé	CPPg++14.2.0	Success	3,750
Sep 12, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	3,763
Sep 12, 2026 00:16	Victor Mercklé	CPPg++14.2.0	Success	23,191
Sep 11, 2026 22:33	Victor Mercklé	CPPg++14.2.0	Success	20,350
Sep 11, 2026 21:51	Victor Mercklé	CPPg++14.2.0	Success	10,193
Sep 11, 2026 21:31	Victor Mercklé	CPPg++14.2.0	Success	3,528
Sep 11, 2026 21:16	Victor Mercklé	CPPg++14.2.0	Success	10,146
Sep 11, 2026 21:05	Victor Mercklé	CPPg++14.2.0	Success	3,498
Sep 11, 2026 20:54	Victor Mercklé	CPPg++14.2.0	Success	10,077
Sep 11, 2026 20:42	Victor Mercklé	CPPg++14.2.0	Success	10,111
Sep 11, 2026 20:30	Victor Mercklé	CPPg++14.2.0	Success	10,072
Sep 11, 2026 20:00	Victor Mercklé	CPPg++14.2.0	Success	10,094
Sep 11, 2026 19:54	Victor Mercklé	CPPg++14.2.0	Success	10,126
Sep 11, 2026 19:45	Victor Mercklé	CPPg++14.2.0	Success	10,319
Sep 11, 2026 19:37	Victor Mercklé	CPPg++14.2.0	Success	10,307
Sep 11, 2026 19:31	Victor Mercklé	CPPg++14.2.0	Success	10,328
Sep 11, 2026 19:20	Victor Mercklé	CPPg++14.2.0	Success	10,545
Sep 11, 2026 19:11	Victor Mercklé	CPPg++14.2.0	Success	20,586
Sep 11, 2026 18:48	Victor Mercklé	CPPg++14.2.0	Success	13,608
Sep 11, 2026 18:22	Victor Mercklé	CPPg++14.2.0	Success	31,448
Sep 11, 2026 17:33	Victor Mercklé	CPPg++14.2.0	Success	26,882
Sep 11, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Success	42,801

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