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
Feb 19, 2026 22:17	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,863
Feb 19, 2026 22:16	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,975
Feb 19, 2026 22:15	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,953
Feb 19, 2026 22:15	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,882
Feb 19, 2026 22:15	Daniel Mastalerz	CPPclang++18.1.3	Success	5,906
Feb 19, 2026 22:14	Serhii Sakhno	CPPg++13.3.0	Error
Feb 19, 2026 22:10	Daniel Mastalerz	CPPclang++18.1.3	Success	5,762
Feb 19, 2026 22:10	Daniel Mastalerz	CPPclang++18.1.3	Success	5,823
Feb 19, 2026 22:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,895
Feb 19, 2026 22:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,819
Feb 19, 2026 22:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,821
Feb 19, 2026 22:08	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,882
Feb 19, 2026 22:08	lipapipa	CPPg++13.3.0	Success	6,392
Feb 19, 2026 22:08	Daniel Mastalerz	CPPclang++18.1.3	Success	6,143
Feb 19, 2026 22:08	lipapipa	CPPg++13.3.0	Success	12,979
Feb 19, 2026 22:07	lipapipa	CPPg++13.3.0	Success	20,391
Feb 19, 2026 22:07	Daniel Mastalerz	CPPclang++18.1.3	Success	6,272
Feb 19, 2026 22:07	Serhii Sakhno	CPPg++13.3.0	Success	85,555
Feb 19, 2026 22:05	Daniel Mastalerz	CPPclang++18.1.3	Success	5,760
Feb 19, 2026 22:04	wn	CPPclang++18.1.3	Success	5,594
Feb 19, 2026 22:04	Daniel Mastalerz	CPPclang++18.1.3	Success	5,826
Feb 19, 2026 22:03	Daniel Mastalerz	CPPclang++18.1.3	Success	5,823
Feb 19, 2026 22:02	wn	CPPclang++18.1.3	Success	5,594
Feb 19, 2026 22:01	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 22:01	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,348
Feb 19, 2026 21:58	wn	CPPclang++18.1.3	Success	5,279
Feb 19, 2026 21:56	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,171
Feb 19, 2026 21:56	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,061
Feb 19, 2026 21:55	Daniel Mastalerz	CPPclang++18.1.3	Success	5,827
Feb 19, 2026 21:52	wn	CPPclang++18.1.3	Success	5,220
Feb 19, 2026 21:50	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,857
Feb 19, 2026 21:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,941
Feb 19, 2026 21:49	Daniel Mastalerz	CPPclang++18.1.3	Success	6,153
Feb 19, 2026 21:47	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,911
Feb 19, 2026 21:45	wn	CPPclang++18.1.3	Error
Feb 19, 2026 21:40	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 21:40	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,846
Feb 19, 2026 21:37	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 21:34	Serhii Sakhno	CPPg++13.3.0	Success	85,905
Feb 19, 2026 21:31	Serhii Sakhno	CPPg++13.3.0	Success	86,005
Feb 19, 2026 21:30	wn	CPPclang++18.1.3	Success	5,669
Feb 19, 2026 21:29	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,838
Feb 19, 2026 21:29	Daniel Mastalerz	CPPclang++18.1.3	Success	5,758+1.81 RP
Feb 19, 2026 21:27	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,953
Feb 19, 2026 21:26	Daniel Mastalerz	CPPclang++18.1.3	Success	5,764+15.81 RP
Feb 19, 2026 21:25	Daniel Mastalerz	CPPclang++18.1.3	Success	5,817+40.12 RP
Feb 19, 2026 21:22	Daniel Mastalerz	CPPclang++18.1.3	Success	5,956+12.31 RP
Feb 19, 2026 21:22	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 21:22	Daniel Mastalerz	CPPclang++18.1.3	Success	6,484
Feb 19, 2026 21:21	lipapipa	CPPg++13.3.0	Success	5,891
Feb 19, 2026 21:21	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 21:21	lipapipa	CPPg++13.3.0	Success	5,918
Feb 19, 2026 21:20	Daniel Mastalerz	CPPclang++18.1.3	Success	6,000+10.76 RP
Feb 19, 2026 21:12	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,137
Feb 19, 2026 21:10	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,113
Feb 19, 2026 21:09	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 21:07	lipapipa	CPPg++13.3.0	Success	5,898
Feb 19, 2026 21:07	lipapipa	CPPg++13.3.0	Success	5,848
Feb 19, 2026 21:05	lipapipa	CPPg++13.3.0	Success	5,814+13.21 RP
Feb 19, 2026 21:05	lipapipa	CPPg++13.3.0	Success	5,889
Feb 19, 2026 20:57	wn	CPPclang++18.1.3	Success	5,073+1.55 RP
Feb 19, 2026 20:52	wn	CPPclang++18.1.3	Success	5,077+0.78 RP
Feb 19, 2026 20:51	wn	CPPclang++18.1.3	Success	5,084
Feb 19, 2026 20:46	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,809
Feb 19, 2026 20:41	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,263
Feb 19, 2026 20:39	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,143
Feb 19, 2026 20:39	wn	CPPclang++18.1.3	Success	5,101
Feb 19, 2026 20:36	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 20:35	wn	CPPclang++18.1.3	Success	5,095
Feb 19, 2026 20:33	wn	CPPclang++18.1.3	Success	5,491
Feb 19, 2026 20:32	Daniel Mastalerz	CPPclang++18.1.3	Success	7,704
Feb 19, 2026 20:31	wn	CPPclang++18.1.3	Success	5,486
Feb 19, 2026 20:27	wn	CPPclang++18.1.3	Success	5,171
Feb 19, 2026 20:24	wn	CPPclang++18.1.3	Success	5,160
Feb 19, 2026 20:22	Daniel Mastalerz	CPPclang++18.1.3	Success	6,093
Feb 19, 2026 20:20	Daniel Mastalerz	CPPclang++18.1.3	Success	6,407
Feb 19, 2026 20:11	wn	CPPclang++18.1.3	Success	5,141
Feb 19, 2026 20:09	Daniel Mastalerz	CPPclang++18.1.3	Success	6,039+1.10 RP
Feb 19, 2026 20:08	Daniel Mastalerz	CPPclang++18.1.3	Success	6,139
Feb 19, 2026 20:06	wn	CPPclang++18.1.3	Success	5,111
Feb 19, 2026 20:06	Daniel Mastalerz	CPPclang++18.1.3	Success	6,043+4.10 RP
Feb 19, 2026 20:05	wn	CPPclang++18.1.3	Success	5,122
Feb 19, 2026 20:01	Daniel Mastalerz	CPPclang++18.1.3	Success	6,129
Feb 19, 2026 20:00	wn	CPPg++13.3.0	Error
Feb 19, 2026 19:57	wn	CPPclang++18.1.3	Success	5,079+30.91 RP
Feb 19, 2026 19:54	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 19:49	Daniel Mastalerz	CPPclang++18.1.3	Success	6,058+7.32 RP
Feb 19, 2026 19:44	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 19:39	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 19:34	wn	CPPclang++18.1.3	Success	5,195
Feb 19, 2026 19:34	lipapipa	CPPg++13.3.0	Success	5,888
Feb 19, 2026 19:24	wn	CPPclang++18.1.3	Success	5,283
Feb 19, 2026 19:23	wn	CPPclang++18.1.3	Success	5,284
Feb 19, 2026 19:21	wn	CPPclang++18.1.3	Success	5,190
Feb 19, 2026 19:18	wn	CPPclang++18.1.3	Success	5,260
Feb 19, 2026 19:15	Daniel Mastalerz	CPPclang++18.1.3	Success	6,085+41.59 RP
Feb 19, 2026 19:14	wn	CPPclang++18.1.3	Success	5,160+6.36 RP
Feb 19, 2026 19:11	wn	CPPclang++18.1.3	Success	5,177+64.21 RP
Feb 19, 2026 19:09	Daniel Mastalerz	CPPclang++18.1.3	Success	7,267
Feb 19, 2026 18:55	Daniel Mastalerz	CPPclang++18.1.3	Success	6,382

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