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
Aug 11, 2026 00:44	Victor Mercklé	CPPg++14.2.0	Success	3,909
Aug 11, 2026 00:39	Victor Mercklé	CPPg++14.2.0	Success	4,073
Aug 11, 2026 00:34	Victor Mercklé	CPPg++14.2.0	Success	3,887+7.92 RP
Aug 11, 2026 00:20	Victor Mercklé	CPPg++14.2.0	Success	7,255
Aug 11, 2026 00:15	Victor Mercklé	CPPg++14.2.0	Success	3,918
Aug 11, 2026 00:04	Victor Mercklé	CPPg++14.2.0	Success	3,997
Aug 10, 2026 23:56	Victor Mercklé	CPPg++14.2.0	Success	4,443
Aug 10, 2026 23:51	Victor Mercklé	CPPg++14.2.0	Success	3,942
Aug 10, 2026 23:34	Victor Mercklé	CPPg++14.2.0	Success	3,955
Aug 10, 2026 23:28	Victor Mercklé	CPPg++14.2.0	Success	3,899+5.25 RP
Aug 10, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	3,927
Aug 10, 2026 21:47	Tony	CPPg++11.5.0	Error
Aug 10, 2026 21:35	Lan Hoang Dao	CPPg++10.5.0	Success	62,604
Aug 10, 2026 21:32	Lan Hoang Dao	CPPg++10.5.0	Success	62,586
Aug 10, 2026 21:29	Lan Hoang Dao	CPPg++10.5.0	Success	62,598
Aug 10, 2026 21:28	Lan Hoang Dao	CPPg++10.5.0	Success	62,608
Aug 10, 2026 21:22	Lan Hoang Dao	CPPg++10.5.0	Success	58,215+30.85 RP
Aug 10, 2026 20:47	Tony	CPPg++11.5.0	Error
Aug 10, 2026 19:04	Lan Hoang Dao	CPPg++10.5.0	Success	70,959+21.27 RP
Aug 10, 2026 19:03	Lan Hoang Dao	CPPg++10.5.0	Success	83,570+19.79 RP
Aug 10, 2026 18:56	Lan Hoang Dao	CPPg++10.5.0	Success	100,526
Aug 10, 2026 18:55	Lan Hoang Dao	CPPg++10.5.0	Success	103,138
Aug 10, 2026 18:53	Lan Hoang Dao	CPPg++10.5.0	Success	102,567
Aug 10, 2026 18:52	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:52	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:43	Lan Hoang Dao	CPPg++10.5.0	Success	104,721
Aug 10, 2026 18:42	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:41	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:40	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:38	Lan Hoang Dao	CPPg++10.5.0	Success	100,128+52.97 RP
Aug 10, 2026 18:36	Victor Mercklé	CPPg++14.2.0	Success	4,637
Aug 10, 2026 18:33	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:30	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:30	Victor Mercklé	CPPg++14.2.0	Success	3,942
Aug 10, 2026 18:28	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	3,912
Aug 10, 2026 18:18	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:16	Victor Mercklé	CPPg++14.2.0	Success	4,084
Aug 10, 2026 17:59	Victor Mercklé	CPPg++14.2.0	Success	3,925
Aug 10, 2026 17:56	Lan Hoang Dao	CPPg++10.5.0	Success	213,189
Aug 10, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	3,907+32.34 RP
Aug 10, 2026 17:41	Lan Hoang Dao	CPPg++10.5.0	Success	213,199+38.28 RP
Aug 10, 2026 17:41	Victor Mercklé	CPPg++14.2.0	Error	+82.78 RP
Aug 10, 2026 17:39	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:32	Victor Mercklé	CPPg++14.2.0	Success	5,943
Aug 10, 2026 17:31	Lan Hoang Dao	CPPg++10.5.0	Success	1,640,388
Aug 10, 2026 17:27	Victor Mercklé	CPPg++14.2.0	Success	4,206
Aug 10, 2026 17:27	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:26	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:24	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:19	Victor Mercklé	CPPg++14.2.0	Success	4,542
Aug 10, 2026 17:15	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:13	Victor Mercklé	CPPg++14.2.0	Success	4,097
Aug 10, 2026 17:08	Victor Mercklé	CPPg++14.2.0	Success	4,797
Aug 10, 2026 17:06	Lan Hoang Dao	CPPg++10.5.0	Success	1,159,471+8.62 RP
Aug 10, 2026 17:02	Victor Mercklé	CPPg++14.2.0	Success	5,546
Aug 10, 2026 16:57	Victor Mercklé	CPPg++14.2.0	Success	4,168
Aug 10, 2026 16:52	Victor Mercklé	CPPg++14.2.0	Success	4,092
Aug 10, 2026 16:47	Victor Mercklé	CPPg++14.2.0	Success	4,210
Aug 10, 2026 16:42	Victor Mercklé	CPPg++14.2.0	Success	4,123
Aug 10, 2026 16:37	Victor Mercklé	CPPg++14.2.0	Success	4,101
Aug 10, 2026 16:32	Victor Mercklé	CPPg++14.2.0	Success	5,614
Aug 10, 2026 16:27	Victor Mercklé	CPPg++14.2.0	Success	5,985
Aug 10, 2026 16:22	Victor Mercklé	CPPg++14.2.0	Success	4,334
Aug 10, 2026 15:36	Victor Mercklé	CPPg++14.2.0	Success	6,034
Aug 10, 2026 15:26	Victor Mercklé	CPPg++14.2.0	Success	4,356
Aug 10, 2026 15:18	Victor Mercklé	CPPg++14.2.0	Success	11,911
Aug 10, 2026 15:14	shuming.li	CPPclang++19.1.1	Success	98,076+101.96 RP
Aug 10, 2026 14:12	Victor Mercklé	CPPg++14.2.0	Success	4,303
Aug 10, 2026 13:58	Victor Mercklé	CPPg++14.2.0	Success	4,923
Aug 10, 2026 12:13	Victor Mercklé	CPPg++14.2.0	Success	5,477
Aug 10, 2026 12:04	Victor Mercklé	CPPg++14.2.0	Success	5,252
Aug 10, 2026 11:21	Victor Mercklé	CPPg++14.2.0	Success	4,943
Aug 10, 2026 11:15	Victor Mercklé	CPPg++14.2.0	Success	5,188
Aug 10, 2026 10:16	Victor Mercklé	CPPg++14.2.0	Success	44,210
Aug 10, 2026 10:01	Victor Mercklé	CPPg++14.2.0	Success	46,806
Aug 10, 2026 09:52	Victor Mercklé	CPPg++14.2.0	Success	6,076
Aug 10, 2026 09:46	Victor Mercklé	CPPg++14.2.0	Success	5,743
Aug 10, 2026 08:31	Victor Mercklé	CPPg++14.2.0	Success	4,097
Aug 9, 2026 20:48	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:42	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:41	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:40	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:39	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:39	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:38	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:37	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:36	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:34	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:31	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:30	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:28	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:27	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:27	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:25	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:22	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:18	Tony	CPPg++14.2.0	Error
Aug 9, 2026 20:17	Tony	CPPclang++18.1.3	Error
Aug 9, 2026 20:15	Tony	CPPg++11.5.0	Error
Aug 9, 2026 20:14	Tony	CPPg++11.5.0	Error

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