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
Jun 27, 2026 12:39	Daniel Mastalerz	CPPclang++20.1.2	Error
Jun 27, 2026 12:30	Daniel Mastalerz	CPPclang++20.1.2	Error	+301.16 RP
Jun 27, 2026 12:29	Daniel Mastalerz	CPPclang++18.1.3	Error
Jun 27, 2026 12:25	Daniel Mastalerz	CPPclang++18.1.3	Error
Jun 27, 2026 10:54	Daniel Mastalerz	CPPclang++18.1.3	Error
Jun 27, 2026 10:49	Victor Mercklé	GOgo1.26.2	Error
Jun 27, 2026 10:49	Daniel Mastalerz	CPPclang++20.1.2	Success	7,492
Jun 27, 2026 10:44	Victor Mercklé	GOgo1.26.2	Error
Jun 27, 2026 10:40	Daniel Mastalerz	CPPclang++20.1.2	Success	6,393
Jun 27, 2026 10:20	Daniel Mastalerz	CPPclang++18.1.3	Error
Jun 27, 2026 02:27	Code Hints	CPPg++14.2.0	Success	7,064
Jun 27, 2026 02:23	Code Hints	CPPg++14.2.0	Success	6,992
Jun 27, 2026 02:16	Code Hints	CPPclang++20.1.2	Success	6,368
Jun 27, 2026 02:14	Code Hints	CPPclang++20.1.2	Success	7,215
Jun 27, 2026 02:12	Code Hints	CPPclang++20.1.2	Success	7,218
Jun 27, 2026 01:28	Code Hints	CPPclang++20.1.2	Success	6,268
Jun 27, 2026 01:27	Code Hints	CPPclang++20.1.2	Success	6,361
Jun 27, 2026 01:26	Code Hints	CPPclang++20.1.2	Success	6,167+32.72 RP
Jun 27, 2026 01:05	Code Hints	CPPclang++20.1.2	Success	7,083
Jun 27, 2026 01:04	Code Hints	CPPclang++20.1.2	Success	7,102
Jun 27, 2026 01:03	Code Hints	CPPclang++20.1.2	Success	7,107
Jun 27, 2026 00:43	A_Shaman	CPPg++10.5.0	Success	37,506+27.38 RP
Jun 27, 2026 00:22	Code Hints	CPPclang++20.1.2	Success	16,144
Jun 27, 2026 00:19	Code Hints	CPPclang++20.1.2	Success	7,305
Jun 27, 2026 00:17	Code Hints	CPPclang++20.1.2	Success	8,547
Jun 27, 2026 00:15	Code Hints	CPPclang++20.1.2	Success	7,084
Jun 26, 2026 23:50	Code Hints	CPPclang++20.1.2	Success	6,294+787.98 RP
Jun 26, 2026 23:06	Code Hints	CPPclang++20.1.2	Success	12,487+663.40 RP
Jun 26, 2026 18:35	Josu San Martin	CPPclang++20.1.2	Error
Jun 26, 2026 18:35	Josu San Martin	CPPclang++18.1.3	Error
Jun 26, 2026 13:05	Victor Mercklé	CPPg++14.2.0	Success	4,401
Jun 26, 2026 12:47	Victor Mercklé	CPPg++14.2.0	Success	4,244
Jun 26, 2026 12:32	Jamal Abdulov	CPPg++10.5.0	Success	523,816
Jun 26, 2026 12:27	Jamal Abdulov	CPPg++10.5.0	Success	365,014
Jun 26, 2026 12:25	Jamal Abdulov	CPPg++10.5.0	Success	391,900
Jun 26, 2026 12:24	Victor Mercklé	CPPg++14.2.0	Success	5,184
Jun 26, 2026 12:22	Jamal Abdulov	CPPg++10.5.0	Error
Jun 26, 2026 12:18	Victor Mercklé	CPPg++14.2.0	Success	4,187
Jun 26, 2026 12:17	Jamal Abdulov	CPPg++10.5.0	Success	89,075+112.26 RP
Jun 26, 2026 12:09	Victor Mercklé	CPPg++14.2.0	Success	4,294
Jun 26, 2026 12:04	Victor Mercklé	CPPg++14.2.0	Success	4,330
Jun 26, 2026 11:51	Victor Mercklé	CPPg++14.2.0	Success	5,095
Jun 26, 2026 11:30	Victor Mercklé	CPPg++14.2.0	Success	4,164
Jun 26, 2026 11:17	Victor Mercklé	CPPg++14.2.0	Success	4,639
Jun 26, 2026 10:52	Victor Mercklé	CPPg++14.2.0	Success	4,468
Jun 26, 2026 10:40	Victor Mercklé	CPPg++14.2.0	Success	4,179
Jun 26, 2026 10:24	Victor Mercklé	CPPg++14.2.0	Success	8,992
Jun 26, 2026 10:12	Victor Mercklé	CPPg++14.2.0	Success	4,396
Jun 26, 2026 09:38	Victor Mercklé	CPPg++14.2.0	Success	5,050
Jun 26, 2026 09:26	Victor Mercklé	CPPg++14.2.0	Success	4,169
Jun 26, 2026 08:54	Victor Mercklé	CPPg++14.2.0	Success	4,937
Jun 26, 2026 08:47	Victor Mercklé	CPPg++14.2.0	Success	8,867
Jun 26, 2026 08:38	Victor Mercklé	CPPg++14.2.0	Success	10,289
Jun 26, 2026 08:06	Victor Mercklé	CPPg++14.2.0	Success	5,001
Jun 26, 2026 07:09	Victor Mercklé	CPPg++14.2.0	Success	4,185
Jun 26, 2026 06:58	Victor Mercklé	CPPg++14.2.0	Success	7,570
Jun 26, 2026 06:46	Victor Mercklé	CPPg++14.2.0	Success	7,364
Jun 26, 2026 05:05	Victor Mercklé	CPPg++14.2.0	Success	16,550
Jun 26, 2026 04:55	Victor Mercklé	CPPg++14.2.0	Success	5,004
Jun 26, 2026 04:45	Victor Mercklé	CPPg++14.2.0	Success	4,870
Jun 25, 2026 23:25	Victor Mercklé	CPPg++14.2.0	Success	4,949
Jun 25, 2026 23:12	Victor Mercklé	CPPg++14.2.0	Success	5,220
Jun 25, 2026 22:52	Victor Mercklé	CPPg++14.2.0	Success	5,331
Jun 25, 2026 22:44	Victor Mercklé	CPPg++14.2.0	Success	5,375
Jun 25, 2026 22:38	Victor Mercklé	CPPg++14.2.0	Success	9,001
Jun 25, 2026 22:29	Victor Mercklé	CPPg++14.2.0	Success	4,156+7.50 RP
Jun 25, 2026 22:19	Victor Mercklé	CPPg++14.2.0	Success	4,194
Jun 25, 2026 21:49	Victor Mercklé	CPPg++14.2.0	Success	5,586
Jun 25, 2026 21:29	Victor Mercklé	CPPg++14.2.0	Success	4,190
Jun 25, 2026 21:17	Victor Mercklé	CPPg++14.2.0	Success	9,435
Jun 25, 2026 21:10	Victor Mercklé	CPPg++14.2.0	Success	7,790
Jun 25, 2026 20:57	Victor Mercklé	CPPg++14.2.0	Success	5,646
Jun 25, 2026 20:47	Victor Mercklé	CPPg++14.2.0	Success	5,662
Jun 25, 2026 20:33	Victor Mercklé	CPPg++14.2.0	Success	4,194
Jun 25, 2026 20:24	Victor Mercklé	CPPg++14.2.0	Success	4,949
Jun 25, 2026 20:14	Victor Mercklé	CPPg++14.2.0	Success	4,169+8.03 RP
Jun 25, 2026 20:02	Victor Mercklé	CPPg++14.2.0	Success	4,205
Jun 25, 2026 19:54	Victor Mercklé	CPPg++14.2.0	Success	12,134
Jun 25, 2026 19:47	Victor Mercklé	CPPg++14.2.0	Success	5,350
Jun 25, 2026 19:35	Victor Mercklé	CPPg++14.2.0	Success	4,184
Jun 25, 2026 19:21	Victor Mercklé	CPPg++14.2.0	Success	4,207
Jun 25, 2026 19:07	Victor Mercklé	CPPg++14.2.0	Success	4,696
Jun 25, 2026 18:51	Victor Mercklé	CPPg++14.2.0	Success	4,347
Jun 25, 2026 18:40	Victor Mercklé	CPPg++14.2.0	Success	12,850
Jun 25, 2026 18:32	Victor Mercklé	CPPg++14.2.0	Success	12,836
Jun 25, 2026 18:24	Victor Mercklé	CPPg++14.2.0	Success	4,246
Jun 25, 2026 18:12	Victor Mercklé	CPPg++14.2.0	Success	4,777
Jun 25, 2026 17:57	Victor Mercklé	CPPg++14.2.0	Success	4,221
Jun 25, 2026 17:45	Victor Mercklé	CPPg++14.2.0	Success	4,227
Jun 25, 2026 17:19	Victor Mercklé	CPPg++14.2.0	Success	4,231
Jun 25, 2026 17:03	Victor Mercklé	CPPg++14.2.0	Success	5,585
Jun 25, 2026 16:46	Victor Mercklé	CPPg++14.2.0	Success	5,490
Jun 25, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Success	4,699
Jun 25, 2026 16:27	Victor Mercklé	CPPg++14.2.0	Success	4,551
Jun 25, 2026 16:22	Victor Mercklé	CPPg++14.2.0	Success	4,468
Jun 25, 2026 16:11	Victor Mercklé	CPPg++14.2.0	Success	5,032
Jun 25, 2026 15:57	Victor Mercklé	CPPg++14.2.0	Success	15,521
Jun 25, 2026 15:51	Victor Mercklé	CPPg++14.2.0	Success	5,143
Jun 25, 2026 15:46	Victor Mercklé	CPPg++14.2.0	Success	6,733
Jun 25, 2026 15:33	Victor Mercklé	CPPg++14.2.0	Success	7,612

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