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
Dec 9, 2025 10:53	Gunsoo Kim	CPPg++13.3.0	Error
Dec 9, 2025 10:52	Gunsoo Kim	CPPg++13.3.0	Success	69,059
Dec 9, 2025 10:51	Gunsoo Kim	CPPclang++18.1.3	Success	62,604+64.07 RP
Dec 9, 2025 10:50	Gunsoo Kim	CPPclang++18.1.3	Error
Dec 9, 2025 10:46	Gunsoo Kim	CPPclang++18.1.3	Success	104,534+0.27 RP
Dec 9, 2025 10:44	Gunsoo Kim	CPPclang++18.1.3	Error
Dec 9, 2025 10:42	Gunsoo Kim	CPPclang++18.1.3	Success	118,861
Dec 9, 2025 10:36	Gunsoo Kim	CPPg++13.3.0	Success	104,833+90.55 RP
Dec 9, 2025 10:35	Gunsoo Kim	CPPg++13.3.0	Error
Dec 9, 2025 10:33	Gunsoo Kim	CPPg++13.3.0	Error
Dec 9, 2025 09:13	luckyhwan	CPPg++13.3.0	Success	46,625+0.91 RP
Dec 9, 2025 09:13	luckyhwan	CPPg++13.3.0	Error
Dec 9, 2025 09:11	luckyhwan	CPPg++13.3.0	Error
Dec 9, 2025 09:08	luckyhwan	CPPg++13.3.0	Success	47,146
Dec 9, 2025 09:07	luckyhwan	CPPg++13.3.0	Success	46,829
Dec 9, 2025 09:07	luckyhwan	CPPg++13.3.0	Success	46,823+0.55 RP
Dec 9, 2025 08:36	luckyhwan	CPPg++13.3.0	Success	60,963
Dec 9, 2025 08:35	luckyhwan	CPPg++13.3.0	Success	82,617
Dec 9, 2025 07:11	Chaitanya Garg	CPPg++13.3.0	Success	68,042
Dec 9, 2025 07:10	Chaitanya Garg	CPPg++13.3.0	Success	71,157
Dec 9, 2025 07:09	Chaitanya Garg	CPPg++13.3.0	Success	141,170
Dec 9, 2025 07:05	Chaitanya Garg	CPPg++13.3.0	Success	71,333
Dec 9, 2025 07:02	Chaitanya Garg	CPPg++13.3.0	Success	67,915+121.94 RP
Dec 9, 2025 06:56	Chaitanya Garg	CPPg++13.3.0	Success	520,656
Dec 9, 2025 06:53	Chaitanya Garg	CPPg++13.3.0	Success	521,332
Dec 9, 2025 06:50	Chaitanya Garg	CPPg++13.3.0	Error
Dec 9, 2025 06:49	Chaitanya Garg	CPPg++13.3.0	Error
Dec 9, 2025 06:45	Chaitanya Garg	CPPg++13.3.0	Success	395,162+20.47 RP
Dec 9, 2025 06:42	Chaitanya Garg	CPPg++13.3.0	Success	2,067,659
Dec 9, 2025 06:38	Chaitanya Garg	CPPg++13.3.0	Success	2,067,672+4.84 RP
Dec 8, 2025 23:01	psep	CPPg++13.3.0	Success	334,413+25.07 RP
Dec 8, 2025 22:57	psep	CPPg++13.3.0	Error
Dec 8, 2025 22:54	psep	CPPg++13.3.0	Error
Dec 8, 2025 22:50	psep	CPPg++13.3.0	Error
Dec 8, 2025 22:50	psep	CPPg++13.3.0	Error
Dec 8, 2025 22:32	psep	CPPg++13.3.0	Error
Dec 8, 2025 20:56	psep	CPPg++13.3.0	Error
Dec 8, 2025 20:24	psep	CPPg++13.3.0	Success	2,068,545+4.83 RP
Dec 8, 2025 12:20	Jatin Garg	CPPg++13.3.0	Success	66,150
Dec 8, 2025 12:20	Jatin Garg	CPPg++13.3.0	Success	65,262
Dec 8, 2025 12:20	Jatin Garg	CPPg++13.3.0	Success	66,103
Dec 8, 2025 12:09	thatmagicalcat	RUSTrust-1.87.0	Success	72,148
Dec 8, 2025 12:02	Jatin Garg	CPPg++13.3.0	Success	65,627
Dec 8, 2025 12:02	Jatin Garg	CPPg++13.3.0	Success	66,976
Dec 8, 2025 12:01	Jatin Garg	CPPg++13.3.0	Success	64,849
Dec 8, 2025 11:59	Jatin Garg	CPPg++13.3.0	Success	64,370
Dec 8, 2025 11:58	Jatin Garg	CPPg++13.3.0	Success	63,471
Dec 8, 2025 11:58	Jatin Garg	CPPg++13.3.0	Success	64,872
Dec 8, 2025 11:56	Jatin Garg	CPPg++13.3.0	Success	56,100+15.96 RP
Dec 8, 2025 11:56	Jatin Garg	CPPg++13.3.0	Success	61,616+0.05 RP
Dec 8, 2025 11:55	Jatin Garg	CPPg++13.3.0	Success	61,635+24.30 RP
Dec 8, 2025 11:54	Jatin Garg	CPPg++13.3.0	Error
Dec 8, 2025 11:54	luckyhwan	CPPg++13.3.0	Success	46,943+7.69 RP
Dec 8, 2025 11:53	Jatin Garg	CPPg++13.3.0	Error
Dec 8, 2025 11:53	luckyhwan	CPPg++13.3.0	Success	49,470
Dec 8, 2025 11:53	luckyhwan	CPPg++13.3.0	Success	48,707
Dec 8, 2025 11:52	Jatin Garg	CPPg++13.3.0	Error
Dec 8, 2025 11:51	luckyhwan	CPPg++13.3.0	Success	48,700+0.04 RP
Dec 8, 2025 11:48	luckyhwan	CPPg++13.3.0	Success	48,709+15.54 RP
Dec 8, 2025 11:46	luckyhwan	CPPg++13.3.0	Success	53,777
Dec 8, 2025 11:45	luckyhwan	CPPg++13.3.0	Success	53,783
Dec 8, 2025 11:44	Jatin Garg	CPPg++13.3.0	Success	72,725
Dec 8, 2025 11:44	Jatin Garg	CPPg++13.3.0	Success	72,490+11.56 RP
Dec 8, 2025 11:43	Jatin Garg	CPPg++13.3.0	Success	79,123+101.08 RP
Dec 8, 2025 11:42	luckyhwan	CPPg++13.3.0	Success	52,697+3.67 RP
Dec 8, 2025 11:40	luckyhwan	CPPg++13.3.0	Success	53,775
Dec 8, 2025 11:39	luckyhwan	CPPg++13.3.0	Success	53,737+0.13 RP
Dec 8, 2025 11:39	luckyhwan	CPPg++13.3.0	Success	53,775+0.03 RP
Dec 8, 2025 11:38	luckyhwan	CPPg++13.3.0	Success	53,785+0.08 RP
Dec 8, 2025 11:38	luckyhwan	CPPg++13.3.0	Error
Dec 8, 2025 11:36	Jatin Garg	CPPg++13.3.0	Success	395,211+6.14 RP
Dec 8, 2025 11:35	luckyhwan	CPPg++13.3.0	Success	91,897
Dec 8, 2025 11:35	Jatin Garg	CPPg++13.3.0	Success	521,773+0.05 RP
Dec 8, 2025 11:35	Jatin Garg	CPPg++13.3.0	Success	523,041+14.28 RP
Dec 8, 2025 11:32	luckyhwan	CPPg++13.3.0	Success	53,808+19.29 RP
Dec 8, 2025 11:31	luckyhwan	CPPg++13.3.0	Success	81,910
Dec 8, 2025 11:30	Jatin Garg	CPPg++13.3.0	Success	2,067,068+4.84 RP
Dec 8, 2025 11:24	luckyhwan	CPPg++13.3.0	Success	60,039+41.72 RP
Dec 8, 2025 11:19	luckyhwan	CPPg++13.3.0	Success	80,101+0.10 RP
Dec 8, 2025 11:15	luckyhwan	CPPg++13.3.0	Success	80,163+100.47 RP
Dec 8, 2025 11:04	warship	CPPclang++18.1.3	Success	53,986
Dec 8, 2025 11:03	warship	CPPclang++18.1.3	Success	53,826+1.17 RP
Dec 8, 2025 11:02	warship	CPPclang++18.1.3	Success	54,176
Dec 8, 2025 11:01	warship	CPPclang++18.1.3	Error
Dec 8, 2025 10:54	warship	CPPclang++18.1.3	Success	54,326
Dec 8, 2025 10:43	warship	CPPclang++18.1.3	Success	54,501
Dec 8, 2025 10:43	warship	CPPclang++18.1.3	Success	58,827
Dec 8, 2025 09:59	warship	CPPclang++18.1.3	Success	56,982
Dec 8, 2025 09:58	warship	CPPclang++18.1.3	Success	56,148
Dec 8, 2025 09:57	warship	CPPclang++18.1.3	Success	55,971
Dec 8, 2025 09:57	warship	CPPclang++18.1.3	Success	54,963
Dec 8, 2025 09:56	warship	CPPclang++18.1.3	Success	59,658
Dec 8, 2025 09:55	warship	CPPclang++18.1.3	Error
Dec 8, 2025 09:53	warship	CPPclang++18.1.3	Error
Dec 8, 2025 09:51	warship	CPPclang++18.1.3	Success	54,167+6.37 RP
Dec 8, 2025 09:49	warship	CPPg++13.3.0	Success	59,077
Dec 8, 2025 09:49	warship	CPPg++13.3.0	Error
Dec 8, 2025 09:48	warship	CPPclang++18.1.3	Error
Dec 8, 2025 09:24	warship	CPPclang++18.1.3	Success	87,821
Dec 8, 2025 09:21	warship	CPPclang++18.1.3	Success	56,102+0.07 RP

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