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 26, 2025 19:07	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 19:07	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 19:04	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 19:03	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 19:00	hunaphu	CPPg++13.3.0	Success	66,377
Dec 26, 2025 18:59	hunaphu	CPPg++13.3.0	Success	73,902
Dec 26, 2025 18:58	hunaphu	CPPg++13.3.0	Success	77,432
Dec 26, 2025 18:58	hunaphu	CPPg++13.3.0	Success	60,283
Dec 26, 2025 18:55	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 18:55	hunaphu	CPPg++13.3.0	Success	59,929
Dec 26, 2025 18:54	hunaphu	CPPg++13.3.0	Success	59,860
Dec 26, 2025 18:52	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 18:51	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 18:50	hunaphu	CPPg++13.3.0	Success	52,864+15.31 RP
Dec 26, 2025 18:50	Hattonuri	CPPclang++18.1.3	Success	2,067,975+4.84 RP
Dec 26, 2025 18:46	hunaphu	CPPg++13.3.0	Error
Dec 26, 2025 18:43	hunaphu	CPPg++13.3.0	Success	67,240
Dec 26, 2025 18:43	hunaphu	CPPg++13.3.0	Success	59,837
Dec 26, 2025 18:41	hunaphu	CPPg++13.3.0	Success	57,520+1.45 RP
Dec 26, 2025 18:37	hunaphu	CPPg++13.3.0	Success	58,004+10.23 RP
Dec 26, 2025 18:35	hunaphu	CPPg++13.3.0	Success	61,664+0.11 RP
Dec 26, 2025 18:34	hunaphu	CPPg++13.3.0	Success	61,704+29.90 RP
Dec 26, 2025 18:34	hunaphu	CPPg++13.3.0	Success	76,659
Dec 26, 2025 18:33	hunaphu	CPPg++13.3.0	Error
Dec 23, 2025 20:06	Mark R Best	RUSTrust-1.92.0	Success	56,589
Dec 23, 2025 20:05	Mark R Best	RUSTrust-1.92.0	Success	65,242
Dec 23, 2025 20:05	Mark R Best	RUSTrust-1.92.0	Success	63,803
Dec 23, 2025 20:04	Mark R Best	RUSTrust-1.92.0	Success	56,854
Dec 23, 2025 20:03	Mark R Best	RUSTrust-1.92.0	Success	60,819
Dec 23, 2025 20:01	Mark R Best	RUSTrust-1.92.0	Success	58,687
Dec 23, 2025 19:57	Mark R Best	RUSTrust-1.92.0	Success	57,895
Dec 23, 2025 19:55	Mark R Best	RUSTrust-1.92.0	Success	56,721
Dec 23, 2025 19:52	Mark R Best	RUSTrust-1.92.0	Error
Dec 23, 2025 19:52	Mark R Best	RUSTrust-1.92.0	Success	60,784
Dec 23, 2025 19:51	Mark R Best	RUSTrust-1.92.0	Success	217,059
Dec 23, 2025 19:51	Mark R Best	RUSTrust-1.92.0	Success	101,957
Dec 23, 2025 19:50	Mark R Best	RUSTrust-1.92.0	Success	60,273
Dec 23, 2025 19:49	Mark R Best	RUSTrust-1.92.0	Error
Dec 23, 2025 19:48	Mark R Best	RUSTrust-1.92.0	Error
Dec 23, 2025 19:44	Mark R Best	RUSTrust-1.92.0	Success	60,022
Dec 23, 2025 16:31	Josu San Martin	CPPg++13.3.0	Error
Dec 23, 2025 15:39	Josu San Martin	CPPg++13.3.0	Success	37,137
Dec 23, 2025 15:09	Josu San Martin	RUSTrust-1.92.0	Success	36,082
Dec 23, 2025 15:04	Josu San Martin	CPPg++13.3.0	Success	36,655
Dec 23, 2025 15:04	Josu San Martin	CPPclang++18.1.3	Success	35,386
Dec 23, 2025 15:02	Josu San Martin	RUSTrust-1.92.0	Success	37,588
Dec 23, 2025 15:00	Josu San Martin	CPPclang++18.1.3	Success	34,301+0.07 RP
Dec 23, 2025 14:58	Josu San Martin	CPPclang++18.1.3	Success	34,309+4.60 RP
Dec 23, 2025 14:58	Josu San Martin	CPPg++13.3.0	Success	43,937
Dec 23, 2025 01:53	hunaphu	CPPg++13.3.0	Error
Dec 23, 2025 01:50	hunaphu	CPPg++13.3.0	Success	87,867
Dec 23, 2025 01:49	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:38	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:38	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:33	hunaphu	CPPg++13.3.0	Success	2,068,593
Dec 22, 2025 20:31	hunaphu	CPPg++13.3.0	Success	75,661+132.17 RP
Dec 22, 2025 20:26	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:24	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:19	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 19:29	Mark R Best	RUSTrust-1.92.0	Success	56,947
Dec 22, 2025 19:28	Mark R Best	RUSTrust-1.92.0	Success	57,144
Dec 22, 2025 19:26	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 19:22	Mark R Best	RUSTrust-1.92.0	Success	56,342+7.87 RP
Dec 22, 2025 19:21	Mark R Best	RUSTrust-1.92.0	Success	61,851
Dec 22, 2025 19:21	Mark R Best	RUSTrust-1.92.0	Success	73,105
Dec 22, 2025 19:12	Zhalgas Khassenov	GOgo1.25.5	Success	1,734,849
Dec 22, 2025 19:09	Mark R Best	RUSTrust-1.92.0	Success	66,783
Dec 22, 2025 19:09	Zhalgas Khassenov	GOgo1.25.5	Success	2,134,954
Dec 22, 2025 19:08	Mark R Best	RUSTrust-1.92.0	Success	70,985
Dec 22, 2025 19:07	Mark R Best	RUSTrust-1.92.0	Success	65,447
Dec 22, 2025 19:04	Mark R Best	RUSTrust-1.92.0	Success	58,957+0.28 RP
Dec 22, 2025 19:00	Mark R Best	RUSTrust-1.92.0	Success	59,054+0.06 RP
Dec 22, 2025 18:58	Mark R Best	RUSTrust-1.92.0	Success	64,365
Dec 22, 2025 18:57	Mark R Best	RUSTrust-1.92.0	Success	59,076+2.39 RP
Dec 22, 2025 18:51	Mark R Best	RUSTrust-1.92.0	Success	62,536
Dec 22, 2025 18:21	Mark R Best	RUSTrust-1.92.0	Success	62,146
Dec 22, 2025 18:18	Mark R Best	RUSTrust-1.92.0	Success	110,462
Dec 22, 2025 18:15	Mark R Best	RUSTrust-1.92.0	Success	61,759
Dec 22, 2025 18:14	Mark R Best	RUSTrust-1.92.0	Success	111,071
Dec 22, 2025 18:12	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 15:01	Josu San Martin	CPPclang++18.1.3	Success	54,978
Dec 22, 2025 14:46	Mark R Best	RUSTrust-1.92.0	Success	91,769
Dec 22, 2025 14:45	Mark R Best	RUSTrust-1.92.0	Success	88,890
Dec 22, 2025 14:34	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:31	Mark R Best	RUSTrust-1.92.0	Success	101,938
Dec 22, 2025 14:28	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:24	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:21	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 10:53	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 04:34	Josu San Martin	RUSTrust-1.92.0	Success	36,253
Dec 22, 2025 04:34	Josu San Martin	CPPclang++18.1.3	Success	34,859+10.33 RP
Dec 22, 2025 04:33	Josu San Martin	CPPg++13.3.0	Success	37,112
Dec 22, 2025 04:33	Josu San Martin	CPPclang++18.1.3	Success	36,161+0.50 RP
Dec 22, 2025 04:33	Josu San Martin	CPPclang++18.1.3	Success	36,709
Dec 22, 2025 04:32	Josu San Martin	CPPclang++18.1.3	Error
Dec 22, 2025 04:29	Josu San Martin	RUSTrust-1.92.0	Success	45,020
Dec 22, 2025 04:24	Josu San Martin	CPPclang++18.1.3	Success	36,596
Dec 22, 2025 04:23	Josu San Martin	CPPclang++18.1.3	Success	36,227+7.52 RP
Dec 22, 2025 04:17	Josu San Martin	CPPclang++18.1.3	Success	37,242+9.70 RP
Dec 22, 2025 04:17	Josu San Martin	CPPg++13.3.0	Success	40,974

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