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
Jan 5, 2026 20:30	lipapipa	CPPg++13.3.0	Success	76,966
Jan 5, 2026 20:28	lipapipa	CPPg++13.3.0	Success	77,714
Jan 5, 2026 20:25	lipapipa	CPPg++13.3.0	Success	75,232+132.92 RP
Jan 5, 2026 16:34	Josu San Martin	CPPg++13.3.0	Success	28,861
Jan 5, 2026 06:04	Josu San Martin	CPPg++13.3.0	Success	39,177
Jan 5, 2026 05:25	Josu San Martin	CPPg++13.3.0	Success	7,230
Jan 5, 2026 04:16	Josu San Martin	CPPg++13.3.0	Success	7,325
Jan 5, 2026 02:45	Josu San Martin	CPPg++13.3.0	Success	56,725
Jan 5, 2026 02:10	Josu San Martin	CPPg++13.3.0	Error
Jan 4, 2026 17:53	Josu San Martin	CPPg++13.3.0	Success	6,841
Jan 4, 2026 06:18	Josu San Martin	CPPg++13.3.0	Success	10,296
Jan 4, 2026 05:45	Josu San Martin	CPPg++13.3.0	Success	9,536
Jan 4, 2026 04:35	Josu San Martin	CPPg++13.3.0	Success	6,000
Jan 4, 2026 04:30	Josu San Martin	CPPg++13.3.0	Error
Jan 4, 2026 04:28	Josu San Martin	CPPg++13.3.0	Success	6,005
Jan 3, 2026 16:56	Carlos MG	CPPg++13.3.0	Success	60,929+31.01 RP
Jan 3, 2026 16:50	Carlos MG	GOgo1.25.5	Success	92,258
Jan 3, 2026 16:47	Carlos MG	GOgo1.25.5	Success	105,316
Jan 3, 2026 16:43	Carlos MG	GOgo1.25.5	Success	75,731
Jan 3, 2026 16:37	Carlos MG	GOgo1.25.5	Success	80,669
Jan 3, 2026 16:34	Carlos MG	GOgo1.25.5	Success	80,688
Jan 3, 2026 16:30	Carlos MG	GOgo1.25.5	Success	80,796
Jan 3, 2026 16:25	Carlos MG	GOgo1.25.5	Success	93,595
Jan 3, 2026 16:22	Carlos MG	RUSTrust-1.92.0	Success	75,424
Jan 3, 2026 16:19	Carlos MG	RUSTrust-1.92.0	Success	75,123+3.94 RP
Jan 3, 2026 16:13	Carlos MG	RUSTrust-1.92.0	Success	368,966
Jan 3, 2026 16:12	Carlos MG	GOgo1.25.5	Success	77,414+30.55 RP
Jan 3, 2026 15:54	Carlos MG	GOgo1.25.5	Success	101,398+62.07 RP
Jan 3, 2026 15:43	Carlos MG	GOgo1.25.5	Success	273,579+36.55 RP
Jan 3, 2026 07:08	Keefe	CPPg++13.3.0	Error
Jan 3, 2026 06:56	Keefe	CPPg++13.3.0	Error
Jan 3, 2026 06:51	Pavitra Golchha	RUSTrust-1.92.0	Success	78,725+3.87 RP
Jan 3, 2026 06:48	Pavitra Golchha	RUSTrust-1.92.0	Success	133,150
Jan 3, 2026 06:47	Keefe	CPPg++13.3.0	Success	50,030
Jan 3, 2026 06:44	Pavitra Golchha	RUSTrust-1.92.0	Error
Jan 3, 2026 04:58	Josu San Martin	RUSTrust-1.92.0	Success	5,605+27.16 RP
Jan 3, 2026 04:48	Josu San Martin	CPPg++13.3.0	Success	8,939
Jan 3, 2026 04:13	Josu San Martin	RUSTrust-1.92.0	Success	83,500
Jan 3, 2026 04:10	Josu San Martin	CPPg++13.3.0	Success	9,497
Jan 3, 2026 04:05	Josu San Martin	CPPg++13.3.0	Success	6,127
Jan 3, 2026 04:04	Josu San Martin	CPPg++13.3.0	Error
Jan 3, 2026 03:44	Josu San Martin	CPPg++13.3.0	Error
Jan 3, 2026 03:44	Josu San Martin	CPPg++13.3.0	Error
Jan 3, 2026 03:23	Josu San Martin	RUSTrust-1.92.0	Success	5,648+15.60 RP
Jan 3, 2026 03:22	Josu San Martin	RUSTrust-1.92.0	Success	5,696
Jan 3, 2026 03:21	Josu San Martin	RUSTrust-1.92.0	Success	6,277
Jan 3, 2026 03:21	Josu San Martin	RUSTrust-1.92.0	Success	60,615
Jan 3, 2026 03:20	Josu San Martin	RUSTrust-1.92.0	Success	65,246
Jan 3, 2026 03:14	Josu San Martin	RUSTrust-1.92.0	Success	50,768
Jan 3, 2026 03:05	Josu San Martin	CPPg++13.3.0	Success	6,275
Jan 3, 2026 02:59	Josu San Martin	RUSTrust-1.92.0	Success	5,723
Jan 3, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Success	5,847
Jan 3, 2026 02:58	Josu San Martin	RUSTrust-1.92.0	Success	5,777
Jan 3, 2026 02:57	Josu San Martin	RUSTrust-1.92.0	Success	5,778
Jan 3, 2026 02:08	Josu San Martin	RUSTrust-1.92.0	Success	5,779
Jan 3, 2026 02:07	Josu San Martin	RUSTrust-1.92.0	Success	5,780
Jan 3, 2026 02:07	Josu San Martin	RUSTrust-1.92.0	Success	5,799
Jan 3, 2026 02:07	Josu San Martin	RUSTrust-1.92.0	Success	5,911
Jan 3, 2026 02:06	Josu San Martin	RUSTrust-1.92.0	Success	5,673+14.86 RP
Jan 3, 2026 02:05	Josu San Martin	CPPg++13.3.0	Success	6,269
Jan 2, 2026 22:29	Josu San Martin	RUSTrust-1.92.0	Success	5,753
Jan 2, 2026 22:24	Josu San Martin	RUSTrust-1.92.0	Success	5,765
Jan 2, 2026 22:24	Josu San Martin	RUSTrust-1.92.0	Success	5,697+9.22 RP
Jan 2, 2026 22:24	Josu San Martin	RUSTrust-1.92.0	Success	5,770
Jan 2, 2026 22:24	Josu San Martin	RUSTrust-1.92.0	Success	5,715
Jan 2, 2026 22:12	Josu San Martin	CPPg++13.3.0	Success	6,123
Jan 2, 2026 21:45	Josu San Martin	RUSTrust-1.92.0	Success	6,803
Jan 2, 2026 21:41	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 21:41	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 21:35	Pavitra Golchha	RUSTrust-1.92.0	Success	81,234
Jan 2, 2026 21:10	Pavitra Golchha	RUSTrust-1.92.0	Success	81,196+28.89 RP
Jan 2, 2026 21:03	Pavitra Golchha	RUSTrust-1.92.0	Success	197,949
Jan 2, 2026 21:00	Pavitra Golchha	RUSTrust-1.92.0	Success	198,211
Jan 2, 2026 20:55	Pavitra Golchha	RUSTrust-1.92.0	Success	197,273
Jan 2, 2026 19:03	Josu San Martin	RUSTrust-1.92.0	Success	5,762
Jan 2, 2026 19:03	Josu San Martin	RUSTrust-1.92.0	Success	5,787
Jan 2, 2026 19:02	Josu San Martin	RUSTrust-1.92.0	Success	5,765
Jan 2, 2026 18:55	Josu San Martin	CPPg++13.3.0	Success	9,783
Jan 2, 2026 18:53	Josu San Martin	RUSTrust-1.92.0	Success	5,712+59.06 RP
Jan 2, 2026 18:33	Josu San Martin	RUSTrust-1.92.0	Success	6,326
Jan 2, 2026 18:13	Josu San Martin	CPPg++13.3.0	Success	14,845
Jan 2, 2026 18:11	Josu San Martin	CPPg++13.3.0	Success	14,205
Jan 2, 2026 18:03	Josu San Martin	RUSTrust-1.92.0	Success	6,941
Jan 2, 2026 17:47	Josu San Martin	RUSTrust-1.92.0	Success	6,815
Jan 2, 2026 17:26	Josu San Martin	RUSTrust-1.92.0	Success	5,892
Jan 2, 2026 17:25	Josu San Martin	RUSTrust-1.92.0	Success	5,810+8.28 RP
Jan 2, 2026 17:23	Josu San Martin	RUSTrust-1.92.0	Success	6,437
Jan 2, 2026 17:16	Josu San Martin	RUSTrust-1.92.0	Success	6,995
Jan 2, 2026 17:15	Josu San Martin	RUSTrust-1.92.0	Success	11,223
Jan 2, 2026 17:12	Josu San Martin	RUSTrust-1.92.0	Success	5,824+59.10 RP
Jan 2, 2026 17:04	Josu San Martin	RUSTrust-1.92.0	Success	5,968
Jan 2, 2026 17:02	Josu San Martin	RUSTrust-1.92.0	Success	5,938
Jan 2, 2026 16:59	Josu San Martin	RUSTrust-1.92.0	Success	6,005
Jan 2, 2026 16:58	Josu San Martin	RUSTrust-1.92.0	Success	5,926+1.70 RP
Jan 2, 2026 16:54	Josu San Martin	CPPg++13.3.0	Success	6,822
Jan 2, 2026 16:49	Josu San Martin	CPPg++13.3.0	Success	7,472
Jan 2, 2026 16:48	Josu San Martin	CPPg++13.3.0	Success	6,902
Jan 2, 2026 16:46	Josu San Martin	RUSTrust-1.92.0	Success	5,939
Jan 2, 2026 16:39	Josu San Martin	RUSTrust-1.92.0	Success	5,929+210.84 RP
Jan 2, 2026 15:13	Josu San Martin	CPPg++13.3.0	Success	6,288+18.25 RP

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