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
Dec 11, 2025 17:39	Bernard Teo	CPPg++13.3.0	Error
Dec 11, 2025 17:19	Bernard Teo	CPPg++13.3.0	Success	6,518
Dec 11, 2025 17:13	Bernard Teo	CPPg++13.3.0	Error
Dec 11, 2025 16:12	Bernard Teo	CPPg++13.3.0	Success	401,446
Dec 11, 2025 16:08	Bernard Teo	CPPg++13.3.0	Success	1,987,281
Dec 11, 2025 15:30	Bernard Teo	CPPg++13.3.0	Success	6,083
Dec 11, 2025 15:29	Bernard Teo	CPPg++13.3.0	Success	6,028+3.02 RP
Dec 11, 2025 15:29	Bernard Teo	CPPg++13.3.0	Success	6,244
Dec 11, 2025 15:27	Bernard Teo	CPPg++13.3.0	Success	6,519
Dec 11, 2025 15:27	Bernard Teo	CPPg++13.3.0	Success	6,083
Dec 11, 2025 15:24	Bernard Teo	CPPg++13.3.0	Error
Dec 11, 2025 15:22	Bernard Teo	CPPg++13.3.0	Success	6,041
Dec 11, 2025 15:22	Bernard Teo	CPPg++13.3.0	Success	6,484
Dec 11, 2025 15:20	Bernard Teo	CPPg++13.3.0	Error
Dec 11, 2025 15:17	Bernard Teo	CPPg++13.3.0	Success	6,466
Dec 10, 2025 22:14	psep	CPPg++13.3.0	Success	46,942
Dec 10, 2025 22:11	psep	CPPg++13.3.0	Success	47,479
Dec 10, 2025 22:07	psep	CPPg++13.3.0	Success	45,894
Dec 10, 2025 22:06	psep	CPPg++13.3.0	Success	45,437
Dec 10, 2025 22:04	psep	CPPg++13.3.0	Success	46,912
Dec 10, 2025 22:02	psep	CPPg++13.3.0	Error
Dec 10, 2025 04:25	Thomas McClave	GOgo1.25.5	Success	273,312+31.75 RP
Dec 10, 2025 04:23	Thomas McClave	CPPg++13.3.0	Success	2,066,788+4.84 RP
Dec 9, 2025 22:13	psep	CPPg++13.3.0	Success	45,915
Dec 9, 2025 22:09	psep	CPPg++13.3.0	Success	45,414+1.73 RP
Dec 9, 2025 22:08	psep	CPPg++13.3.0	Success	53,202
Dec 9, 2025 22:05	psep	CPPg++13.3.0	Success	45,773+6.98 RP
Dec 9, 2025 22:04	psep	CPPg++13.3.0	Success	55,250
Dec 9, 2025 22:02	psep	CPPg++13.3.0	Success	53,969
Dec 9, 2025 21:59	psep	CPPg++13.3.0	Success	47,675
Dec 9, 2025 21:58	psep	CPPg++13.3.0	Success	49,619
Dec 9, 2025 21:56	psep	CPPg++13.3.0	Success	48,920
Dec 9, 2025 21:51	psep	CPPg++13.3.0	Success	47,284+4.37 RP
Dec 9, 2025 21:45	psep	CPPg++13.3.0	Success	48,293
Dec 9, 2025 21:43	psep	CPPg++13.3.0	Success	48,282+5.37 RP
Dec 9, 2025 20:46	psep	CPPg++13.3.0	Success	52,661
Dec 9, 2025 20:41	psep	CPPg++13.3.0	Success	52,653
Dec 9, 2025 20:41	psep	CPPg++13.3.0	Success	52,778
Dec 9, 2025 20:32	psep	CPPg++13.3.0	Success	49,566+5.41 RP
Dec 9, 2025 20:29	psep	CPPg++13.3.0	Success	50,933+27.21 RP
Dec 9, 2025 20:20	psep	CPPg++13.3.0	Success	59,127+8.08 RP
Dec 9, 2025 19:23	psep	CPPg++13.3.0	Error
Dec 9, 2025 19:23	psep	CPPg++13.3.0	Error
Dec 9, 2025 19:22	psep	CPPg++13.3.0	Error
Dec 9, 2025 19:22	psep	CPPg++13.3.0	Error
Dec 9, 2025 19:20	psep	CPPg++13.3.0	Success	62,094+8.46 RP
Dec 9, 2025 19:15	psep	CPPg++13.3.0	Success	65,990
Dec 9, 2025 19:13	psep	CPPg++13.3.0	Success	65,535+98.19 RP
Dec 9, 2025 19:11	psep	CPPg++13.3.0	Error
Dec 9, 2025 18:48	hey-researcher	CPPg++13.3.0	Success	2,066,452+4.84 RP
Dec 9, 2025 17:28	psep	CPPg++13.3.0	Error
Dec 9, 2025 17:20	psep	CPPg++13.3.0	Error
Dec 9, 2025 17:18	psep	CPPg++13.3.0	Success	188,946
Dec 9, 2025 17:08	psep	CPPg++13.3.0	Success	183,812+24.50 RP
Dec 9, 2025 11:03	Gunsoo Kim	CPPclang++18.1.3	Success	59,284
Dec 9, 2025 11:02	Gunsoo Kim	CPPclang++18.1.3	Success	59,259
Dec 9, 2025 11:02	Gunsoo Kim	CPPclang++18.1.3	Success	72,959
Dec 9, 2025 11:01	Gunsoo Kim	CPPclang++18.1.3	Success	59,250+0.04 RP
Dec 9, 2025 11:00	Gunsoo Kim	CPPclang++18.1.3	Error
Dec 9, 2025 10:59	Gunsoo Kim	CPPclang++18.1.3	Success	75,924
Dec 9, 2025 10:55	Gunsoo Kim	CPPclang++18.1.3	Success	59,264+9.00 RP
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

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