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
Nov 12, 2025 13:51	Aliaksandr Mikhei	CPPg++13.3.0	Success	134,606
Nov 12, 2025 13:25	Aliaksandr Mikhei	CPPg++13.3.0	Success	78,444
Nov 12, 2025 13:25	Aliaksandr Mikhei	CPPg++13.3.0	Success	73,813+0.09 RP
Nov 12, 2025 12:38	Aliaksandr Mikhei	CPPg++13.3.0	Success	73,862+0.25 RP
Nov 12, 2025 12:37	Aliaksandr Mikhei	CPPg++13.3.0	Success	74,001+1.00 RP
Nov 12, 2025 12:22	Aliaksandr Mikhei	CPPg++13.3.0	Success	74,554+1.05 RP
Nov 12, 2025 12:18	Aliaksandr Mikhei	CPPg++13.3.0	Success	75,145+0.72 RP
Nov 12, 2025 12:17	Aliaksandr Mikhei	CPPg++13.3.0	Success	79,747
Nov 12, 2025 12:16	Aliaksandr Mikhei	CPPg++13.3.0	Success	77,010
Nov 12, 2025 12:16	Aliaksandr Mikhei	CPPg++13.3.0	Success	80,752
Nov 12, 2025 12:15	Aliaksandr Mikhei	CPPg++13.3.0	Success	76,907
Nov 12, 2025 12:15	Aliaksandr Mikhei	CPPg++13.3.0	Success	76,467
Nov 12, 2025 12:14	Aliaksandr Mikhei	CPPg++13.3.0	Success	78,704
Nov 12, 2025 12:14	Aliaksandr Mikhei	CPPg++13.3.0	Success	86,838
Nov 12, 2025 12:13	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 12:13	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 12:08	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 12:07	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 12:04	Aliaksandr Mikhei	CPPg++13.3.0	Success	75,556+1.80 RP
Nov 12, 2025 12:02	Aliaksandr Mikhei	CPPg++13.3.0	Success	82,974
Nov 12, 2025 12:01	Aliaksandr Mikhei	CPPg++13.3.0	Success	83,076
Nov 12, 2025 12:00	Aliaksandr Mikhei	CPPg++13.3.0	Success	76,603
Nov 12, 2025 11:59	Aliaksandr Mikhei	CPPg++13.3.0	Success	76,600+14.06 RP
Nov 12, 2025 11:59	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 11:55	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 11:54	Aliaksandr Mikhei	CPPg++13.3.0	Success	85,847+0.02 RP
Nov 12, 2025 11:54	Aliaksandr Mikhei	CPPg++13.3.0	Success	93,208
Nov 12, 2025 11:53	Aliaksandr Mikhei	CPPg++13.3.0	Success	85,859+5.76 RP
Nov 12, 2025 11:51	Aliaksandr Mikhei	CPPg++13.3.0	Success	90,327+2.85 RP
Nov 12, 2025 11:50	Aliaksandr Mikhei	CPPclang++18.1.3	Success	109,010
Nov 12, 2025 11:50	Aliaksandr Mikhei	CPPg++13.3.0	Success	92,830
Nov 12, 2025 11:49	Aliaksandr Mikhei	CPPg++13.3.0	Success	92,713+3.66 RP
Nov 12, 2025 11:45	Aliaksandr Mikhei	CPPg++13.3.0	Success	95,967+4.40 RP
Nov 12, 2025 11:42	Aliaksandr Mikhei	CPPg++13.3.0	Success	100,195+2.30 RP
Nov 12, 2025 11:41	Aliaksandr Mikhei	CPPg++13.3.0	Success	102,558+92.67 RP
Nov 12, 2025 06:31	Gunsoo Kim	CPPg++13.3.0	Success	2,065,873+4.84 RP
Nov 11, 2025 17:25	Dmytro Izotov	GOgo1.25.4	Success	77,258
Nov 11, 2025 17:22	Dmytro Izotov	GOgo1.25.4	Success	73,803+13.19 RP
Nov 11, 2025 17:01	Dmytro Izotov	GOgo1.25.4	Success	81,759+122.31 RP
Nov 11, 2025 10:14	Serge Smirnov	CPPg++13.3.0	Success	2,067,129
Nov 10, 2025 20:54	j3o1	CPPg++13.3.0	Success	195,789
Nov 10, 2025 20:51	j3o1	CPPg++13.3.0	Success	200,396
Nov 10, 2025 12:58	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 10, 2025 12:56	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 10, 2025 12:36	Aliaksandr Mikhei	CPPg++13.3.0	Success	2,067,034+4.84 RP
Nov 10, 2025 04:35	izotoff	GOgo1.11	Error
Nov 10, 2025 04:34	izotoff	GOgo1.11	Error
Nov 10, 2025 04:33	izotoff	GOgo1.11	Error
Nov 10, 2025 04:32	izotoff	GOgo1.11	Error
Nov 10, 2025 04:29	izotoff	GOgo1.11	Error
Nov 10, 2025 04:27	izotoff	GOgo1.25.4	Error
Nov 10, 2025 04:21	izotoff	GOgo1.25.4	Error
Nov 10, 2025 04:18	izotoff	GOgo1.25.4	Error
Nov 10, 2025 04:17	izotoff	GOgo1.18.8	Error
Nov 10, 2025 04:14	izotoff	GOgo1.18.8	Error
Nov 9, 2025 14:26	izotoff	GOgo1.18.8	Error
Nov 9, 2025 14:24	izotoff	GOgo1.18.8	Error
Nov 9, 2025 14:23	izotoff	GOgo1.18.8	Error
Nov 9, 2025 11:36	izotoff	GOgo1.18.8	Success	56,535
Nov 9, 2025 11:34	izotoff	GOgo1.11	Success	48,997+29.20 RP
Nov 9, 2025 10:25	izotoff	GOgo1.11	Success	58,508
Nov 9, 2025 07:41	izotoff	GOgo1.11	Success	57,179+3.62 RP
Nov 9, 2025 07:37	izotoff	GOgo1.11	Success	59,325
Nov 9, 2025 07:36	izotoff	GOgo1.11	Success	58,389+6.12 RP
Nov 9, 2025 07:35	izotoff	GOgo1.25.4	Success	63,189
Nov 9, 2025 01:51	izotoff	GOgo1.25.4	Success	67,973
Nov 9, 2025 01:49	izotoff	GOgo1.11.1	Success	63,454
Nov 9, 2025 01:47	izotoff	GOgo1.25.4	Success	62,068
Nov 9, 2025 01:46	izotoff	GOgo1.25.4	Error
Nov 9, 2025 01:45	izotoff	GOgo1.25.4	Success	68,112
Nov 9, 2025 01:44	izotoff	GOgo1.25.4	Success	66,328
Nov 9, 2025 01:41	izotoff	GOgo1.25.4	Error
Nov 9, 2025 01:28	izotoff	GOgo1.25.4	Success	67,980
Nov 9, 2025 01:26	izotoff	GOgo1.25.4	Success	68,329
Nov 9, 2025 01:11	izotoff	GOgo1.11	Success	490,302
Nov 9, 2025 01:07	izotoff	GOgo1.11	Success	452,500
Nov 9, 2025 01:04	izotoff	GOgo1.11	Error
Nov 9, 2025 00:45	izotoff	GOgo1.11	Success	61,524
Nov 9, 2025 00:41	izotoff	GOgo1.11	Success	62,044
Nov 9, 2025 00:39	izotoff	GOgo1.11	Success	73,199
Nov 9, 2025 00:38	izotoff	GOgo1.11	Success	61,523
Nov 9, 2025 00:36	izotoff	GOgo1.11	Success	63,374
Nov 9, 2025 00:35	izotoff	GOgo1.11	Success	62,545
Nov 9, 2025 00:33	izotoff	GOgo1.11	Success	65,847
Nov 9, 2025 00:32	izotoff	GOgo1.11	Success	64,448
Nov 9, 2025 00:31	izotoff	GOgo1.11	Success	62,691
Nov 9, 2025 00:29	izotoff	GOgo1.11	Success	61,485
Nov 9, 2025 00:15	izotoff	GOgo1.11	Success	61,075
Nov 9, 2025 00:13	izotoff	GOgo1.11	Success	60,631
Nov 9, 2025 00:13	izotoff	GOgo1.11	Success	61,550
Nov 9, 2025 00:12	izotoff	GOgo1.11	Error
Nov 9, 2025 00:11	izotoff	GOgo1.11	Error
Nov 9, 2025 00:08	izotoff	GOgo1.11	Success	60,593
Nov 9, 2025 00:07	izotoff	GOgo1.11	Success	62,242
Nov 9, 2025 00:06	izotoff	GOgo1.11	Success	60,564
Nov 9, 2025 00:03	izotoff	GOgo1.11	Success	63,564
Nov 9, 2025 00:01	izotoff	GOgo1.11	Success	63,608
Nov 8, 2025 23:55	izotoff	GOgo1.11	Success	63,579
Nov 8, 2025 23:50	izotoff	GOgo1.11	Success	63,630
Nov 8, 2025 23:49	izotoff	GOgo1.11	Success	73,129

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