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 1, 2026 13:14	George Seabridge	RUSTrust-1.95.0	Success	8,127
Aug 1, 2026 13:13	George Seabridge	RUSTrust-1.95.0	Success	8,151
Aug 1, 2026 13:12	George Seabridge	RUSTrust-1.95.0	Success	7,659
Aug 1, 2026 13:08	George Seabridge	RUSTrust-1.95.0	Success	8,153
Aug 1, 2026 13:07	George Seabridge	RUSTrust-1.95.0	Success	8,125
Aug 1, 2026 13:01	George Seabridge	RUSTrust-1.95.0	Success	8,145
Aug 1, 2026 13:00	George Seabridge	RUSTrust-1.95.0	Success	7,458
Aug 1, 2026 12:59	George Seabridge	RUSTrust-1.95.0	Success	8,144
Aug 1, 2026 12:33	George Seabridge	RUSTrust-1.95.0	Success	6,890+6.08 RP
Aug 1, 2026 12:32	George Seabridge	RUSTrust-1.95.0	Success	10,554
Aug 1, 2026 12:01	George Seabridge	RUSTrust-1.95.0	Success	10,709
Aug 1, 2026 11:45	George Seabridge	RUSTrust-1.95.0	Success	140,041
Aug 1, 2026 11:25	George Seabridge	RUSTrust-1.95.0	Success	6,919+3.13 RP
Aug 1, 2026 11:22	George Seabridge	RUSTrust-1.95.0	Success	7,956
Aug 1, 2026 11:17	George Seabridge	RUSTrust-1.95.0	Success	7,670
Aug 1, 2026 11:10	George Seabridge	RUSTrust-1.95.0	Success	7,941
Aug 1, 2026 11:04	George Seabridge	RUSTrust-1.95.0	Success	6,934+154.84 RP
Aug 1, 2026 11:03	George Seabridge	RUSTrust-1.95.0	Success	7,905
Aug 1, 2026 10:56	George Seabridge	RUSTrust-1.95.0	Success	7,768+21.67 RP
Aug 1, 2026 10:55	George Seabridge	RUSTrust-1.95.0	Success	9,672
Aug 1, 2026 10:54	George Seabridge	RUSTrust-1.95.0	Success	20,732
Aug 1, 2026 10:46	George Seabridge	RUSTrust-1.95.0	Success	7,901+48.38 RP
Aug 1, 2026 10:33	Victor Mercklé	CPPg++14.2.0	Success	4,381
Aug 1, 2026 10:27	Victor Mercklé	CPPg++14.2.0	Success	4,385
Aug 1, 2026 10:22	Victor Mercklé	CPPg++14.2.0	Success	4,680
Aug 1, 2026 10:17	Victor Mercklé	CPPg++14.2.0	Success	4,762
Aug 1, 2026 10:01	George Seabridge	RUSTrust-1.95.0	Success	8,215+77.03 RP
Jul 31, 2026 23:57	George Seabridge	RUSTrust-1.95.0	Success	12,364
Jul 31, 2026 23:56	George Seabridge	RUSTrust-1.95.0	Success	10,856
Jul 31, 2026 22:20	Tony	CPPg++10.5.0	Success	54,403+71.48 RP
Jul 31, 2026 22:19	Tony	CPPg++10.5.0	Error
Jul 31, 2026 21:56	George Seabridge	RUSTrust-1.95.0	Success	8,992
Jul 31, 2026 19:51	boop34	CPPg++14.2.0	Error
Jul 31, 2026 19:01	George Seabridge	RUSTrust-1.95.0	Success	8,942
Jul 31, 2026 18:44	George Seabridge	RUSTrust-1.95.0	Error
Jul 31, 2026 18:43	George Seabridge	RUSTrust-1.95.0	Error
Jul 31, 2026 18:33	George Seabridge	RUSTrust-1.95.0	Success	17,570
Jul 31, 2026 18:24	George Seabridge	RUSTrust-1.95.0	Success	8,869
Jul 31, 2026 18:24	George Seabridge	RUSTrust-1.95.0	Success	8,814
Jul 31, 2026 18:12	boop34	CPPg++14.2.0	Success	8,608
Jul 31, 2026 18:08	George Seabridge	RUSTrust-1.95.0	Success	9,183
Jul 31, 2026 18:07	boop34	CPPg++14.2.0	Success	8,534
Jul 31, 2026 18:06	George Seabridge	RUSTrust-1.95.0	Success	8,903
Jul 31, 2026 17:59	George Seabridge	RUSTrust-1.95.0	Success	8,823
Jul 31, 2026 17:53	George Seabridge	RUSTrust-1.95.0	Success	8,828
Jul 31, 2026 17:50	George Seabridge	RUSTrust-1.95.0	Success	9,238
Jul 31, 2026 17:39	George Seabridge	RUSTrust-1.95.0	Success	9,172
Jul 31, 2026 17:39	boop34	CPPg++14.2.0	Error
Jul 31, 2026 16:27	George Seabridge	RUSTrust-1.95.0	Success	8,770+891.51 RP
Jul 31, 2026 16:14	boop34	CPPg++14.2.0	Success	16,447
Jul 31, 2026 16:01	boop34	CPPg++14.2.0	Error
Jul 31, 2026 15:32	boop34	CPPg++14.2.0	Success	14,177
Jul 31, 2026 15:27	boop34	CPPg++14.2.0	Success	14,170
Jul 31, 2026 15:24	boop34	CPPg++14.2.0	Error
Jul 31, 2026 14:55	boop34	CPPg++14.2.0	Error
Jul 31, 2026 14:47	boop34	CPPg++14.2.0	Error
Jul 31, 2026 13:29	CodeReclaimers	CPPclang++20.1.2	Success	15,053
Jul 31, 2026 13:22	George Seabridge	RUSTrust-1.95.0	Success	41,129
Jul 31, 2026 13:19	George Seabridge	RUSTrust-1.95.0	Success	100,325
Jul 31, 2026 13:17	George Seabridge	RUSTrust-1.95.0	Success	69,443
Jul 31, 2026 13:11	George Seabridge	RUSTrust-1.95.0	Success	40,203+59.00 RP
Jul 31, 2026 13:09	George Seabridge	RUSTrust-1.95.0	Success	60,011
Jul 31, 2026 12:50	George Seabridge	RUSTrust-1.95.0	Success	55,188
Jul 31, 2026 12:39	George Seabridge	RUSTrust-1.97.1	Success	69,694
Jul 31, 2026 12:36	George Seabridge	RUSTrust-1.95.0	Success	69,521
Jul 31, 2026 12:07	boop34	CPPg++14.2.0	Success	8,453
Jul 31, 2026 11:37	George Seabridge	RUSTrust-1.95.0	Success	81,680
Jul 31, 2026 10:46	George Seabridge	RUSTrust-1.95.0	Success	52,704+64.98 RP
Jul 31, 2026 10:27	George Seabridge	RUSTrust-1.97.1	Success	80,154+99.16 RP
Jul 31, 2026 08:58	George Seabridge	RUSTrust-1.95.0	Success	390,662+25.60 RP
Jul 31, 2026 05:56	Tony	CPPg++10.5.0	Success	89,023+112.33 RP
Jul 30, 2026 20:45	boop34	CPPg++14.2.0	Success	20,179
Jul 30, 2026 20:27	wn	CPPg++14.2.0	Success	3,316
Jul 30, 2026 20:26	wn	CPPg++14.2.0	Success	3,375
Jul 30, 2026 20:26	wn	CPPg++14.2.0	Success	3,304
Jul 30, 2026 20:01	boop34	CPPg++14.2.0	Success	8,653
Jul 30, 2026 19:55	boop34	CPPg++14.2.0	Success	8,291+17.77 RP
Jul 30, 2026 19:41	boop34	CPPg++14.2.0	Success	8,415+62.23 RP
Jul 30, 2026 19:36	boop34	CPPg++14.2.0	Success	34,289
Jul 30, 2026 19:27	boop34	CPPg++14.2.0	Success	34,092
Jul 30, 2026 19:19	boop34	CPPg++14.2.0	Success	32,785
Jul 30, 2026 18:57	boop34	CPPg++14.2.0	Success	21,987
Jul 30, 2026 17:48	CodeReclaimers	CPPclang++20.1.2	Success	15,247
Jul 30, 2026 17:38	boop34	CPPg++14.2.0	Success	8,970
Jul 30, 2026 17:29	boop34	CPPg++14.2.0	Success	21,444
Jul 30, 2026 17:26	boop34	CPPg++14.2.0	Success	21,346
Jul 30, 2026 17:25	CodeReclaimers	CPPclang++20.1.2	Success	16,466
Jul 30, 2026 16:41	boop34	CPPg++14.2.0	Success	20,940
Jul 30, 2026 16:40	boop34	CPPg++14.2.0	Error
Jul 30, 2026 16:38	boop34	CPPg++14.2.0	Error
Jul 30, 2026 16:22	CodeReclaimers	CPPclang++20.1.2	Success	15,729
Jul 30, 2026 16:01	CodeReclaimers	CPPclang++20.1.2	Success	18,952
Jul 30, 2026 15:45	CodeReclaimers	CPPclang++20.1.2	Success	14,557+129.73 RP
Jul 30, 2026 15:35	CodeReclaimers	CPPclang++20.1.2	Success	19,795
Jul 30, 2026 15:10	CodeReclaimers	CPPclang++20.1.2	Success	17,946+171.77 RP
Jul 30, 2026 15:05	CodeReclaimers	CPPg++10.5.0	Success	25,943+168.74 RP
Jul 30, 2026 14:48	CodeReclaimers	CPPg++10.5.0	Success	48,715
Jul 30, 2026 14:43	CodeReclaimers	CPPclang++20.1.2	Success	46,143+65.34 RP
Jul 30, 2026 14:32	CodeReclaimers	CPPclang++20.1.2	Success	69,486
Jul 30, 2026 14:15	CodeReclaimers	CPPg++10.5.0	Success	66,058+151.38 RP

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