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
Feb 15, 2026 22:32	wn	CPPg++13.3.0	Success	9,740
Feb 15, 2026 22:31	wn	CPPg++13.3.0	Success	9,623
Feb 15, 2026 22:31	wn	CPPg++13.3.0	Success	9,667
Feb 15, 2026 22:30	wn	CPPg++13.3.0	Success	10,979
Feb 15, 2026 22:30	wn	CPPg++13.3.0	Success	11,033
Feb 15, 2026 22:29	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:28	wn	CPPg++13.3.0	Success	9,684
Feb 15, 2026 22:28	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:27	wn	CPPg++13.3.0	Success	10,088
Feb 15, 2026 22:27	wn	CPPg++13.3.0	Success	9,937
Feb 15, 2026 22:26	wn	CPPg++13.3.0	Success	10,042
Feb 15, 2026 22:22	wn	CPPg++13.3.0	Success	9,579+5.74 RP
Feb 15, 2026 22:16	wn	CPPg++13.3.0	Success	9,632+134.29 RP
Feb 15, 2026 22:16	wn	CPPg++13.3.0	Error
Feb 15, 2026 21:10	Daniel Mastalerz	CPPclang++18.1.3	Success	7,454
Feb 15, 2026 20:48	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,419
Feb 15, 2026 20:45	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 20:41	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,794
Feb 15, 2026 20:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,851
Feb 15, 2026 20:26	Juraj Zelman	RUSTrust-1.93.1	Success	12,580
Feb 15, 2026 20:19	wn	CPPg++13.3.0	Success	11,063+25.80 RP
Feb 15, 2026 20:14	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,799
Feb 15, 2026 20:13	wn	CPPg++13.3.0	Success	11,388+33.52 RP
Feb 15, 2026 20:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,784+7.74 RP
Feb 15, 2026 20:02	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,060
Feb 15, 2026 19:55	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,079
Feb 15, 2026 19:51	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,810+1.48 RP
Feb 15, 2026 19:48	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,887
Feb 15, 2026 19:45	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,040
Feb 15, 2026 19:41	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,968
Feb 15, 2026 19:32	Daniel Mastalerz	CPPclang++18.1.3	Success	10,018
Feb 15, 2026 19:31	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,206
Feb 15, 2026 19:30	Daniel Mastalerz	CPPclang++18.1.3	Success	10,199
Feb 15, 2026 19:30	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,137
Feb 15, 2026 19:28	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 19:25	Daniel Mastalerz	CPPclang++18.1.3	Success	10,017
Feb 15, 2026 19:20	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,303
Feb 15, 2026 19:08	Daniel Mastalerz	CPPclang++18.1.3	Success	7,444
Feb 15, 2026 19:05	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 19:02	Daniel Mastalerz	CPPclang++18.1.3	Success	7,330
Feb 15, 2026 19:01	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 19:01	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 15, 2026 19:00	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 18:57	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 15, 2026 18:57	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 15, 2026 18:54	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 15, 2026 18:53	Daniel Mastalerz	CPPclang++18.1.3	Success	6,375
Feb 15, 2026 18:52	Daniel Mastalerz	CPPclang++18.1.3	Success	6,391
Feb 15, 2026 18:51	Daniel Mastalerz	CPPclang++18.1.3	Success	6,384
Feb 15, 2026 18:49	Daniel Mastalerz	CPPclang++18.1.3	Success	6,900
Feb 15, 2026 18:44	Daniel Mastalerz	CPPclang++18.1.3	Success	6,381
Feb 15, 2026 18:42	Daniel Mastalerz	CPPclang++18.1.3	Success	6,444
Feb 15, 2026 18:41	Daniel Mastalerz	CPPclang++18.1.3	Success	13,577
Feb 15, 2026 18:41	Daniel Mastalerz	CPPclang++18.1.3	Success	10,774
Feb 15, 2026 18:37	wn	CPPg++13.3.0	Error
Feb 15, 2026 18:37	Daniel Mastalerz	CPPclang++18.1.3	Success	6,855
Feb 15, 2026 18:35	Daniel Mastalerz	CPPclang++18.1.3	Success	6,382
Feb 15, 2026 18:31	Daniel Mastalerz	CPPclang++18.1.3	Success	6,726
Feb 15, 2026 18:24	Daniel Mastalerz	CPPclang++18.1.3	Success	6,648
Feb 15, 2026 18:01	wn	CPPg++13.3.0	Error
Feb 15, 2026 18:00	wn	CPPg++13.3.0	Success	11,840+120.90 RP
Feb 15, 2026 17:57	wn	CPPg++13.3.0	Success	13,818+514.40 RP
Feb 15, 2026 17:49	Juraj Zelman	RUSTrust-1.93.1	Success	14,912
Feb 15, 2026 17:12	wn	CPPg++13.3.0	Success	63,252
Feb 15, 2026 17:11	wn	CPPg++13.3.0	Success	88,492
Feb 15, 2026 17:07	wn	CPPg++13.3.0	Error
Feb 15, 2026 17:05	wn	CPPg++13.3.0	Error
Feb 15, 2026 17:03	wn	CPPg++13.3.0	Error
Feb 15, 2026 16:59	wn	CPPg++13.3.0	Error
Feb 15, 2026 16:53	wn	CPPg++13.3.0	Error
Feb 15, 2026 16:47	wn	CPPg++13.3.0	Error
Feb 15, 2026 16:43	wn	CPPg++13.3.0	Error
Feb 15, 2026 16:41	wn	CPPg++13.3.0	Error
Feb 15, 2026 15:36	wn	CPPg++13.3.0	Error
Feb 15, 2026 15:15	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,815+69.53 RP
Feb 15, 2026 15:02	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,098
Feb 15, 2026 14:44	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,060+8.13 RP
Feb 15, 2026 14:30	wn	CPPg++13.3.0	Error
Feb 15, 2026 14:20	wn	CPPg++13.3.0	Error
Feb 15, 2026 14:19	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,183
Feb 15, 2026 14:18	wn	CPPg++13.3.0	Error
Feb 15, 2026 14:12	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,090+10.71 RP
Feb 15, 2026 14:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,333
Feb 15, 2026 13:59	wn	CPPg++13.3.0	Error
Feb 15, 2026 13:56	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,130+49.54 RP
Feb 15, 2026 13:47	Daniel Mastalerz	CPPclang++18.1.3	Success	6,785
Feb 15, 2026 13:40	Daniel Mastalerz	CPPclang++18.1.3	Success	6,278+25.96 RP
Feb 15, 2026 13:38	Daniel Mastalerz	CPPclang++18.1.3	Success	6,813
Feb 15, 2026 13:36	Daniel Mastalerz	CPPclang++18.1.3	Success	6,382+24.17 RP
Feb 15, 2026 13:33	Daniel Mastalerz	CPPclang++18.1.3	Success	6,611
Feb 15, 2026 13:11	Daniel Mastalerz	CPPclang++18.1.3	Success	6,482+0.71 RP
Feb 15, 2026 12:35	Daniel Mastalerz	CPPclang++18.1.3	Success	7,571
Feb 15, 2026 12:33	Daniel Mastalerz	CPPclang++18.1.3	Success	7,332
Feb 15, 2026 12:25	Daniel Mastalerz	CPPclang++18.1.3	Success	9,428
Feb 15, 2026 12:14	wn	CPPg++13.3.0	Error
Feb 15, 2026 12:13	wn	CPPg++13.3.0	Error
Feb 15, 2026 11:58	Daniel Mastalerz	CPPclang++18.1.3	Success	7,345
Feb 15, 2026 11:46	Daniel Mastalerz	CPPclang++18.1.3	Success	8,442
Feb 15, 2026 11:43	Daniel Mastalerz	CPPg++13.3.0	Success	8,553
Feb 15, 2026 11:42	Daniel Mastalerz	CPPclang++18.1.3	Success	7,961

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