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 17, 2026 15:03	Josu San Martin	CPPg++13.3.0	Error
Jan 15, 2026 20:09	Praveen Singh	CPPg++13.3.0	Success	69,716+143.44 RP
Jan 15, 2026 20:08	Praveen Singh	CPPg++13.3.0	Error
Jan 15, 2026 20:04	Praveen Singh	CPPg++13.3.0	Error
Jan 15, 2026 17:21	Jonathan Gopel	RUSTrust-1.92.0	Success	62,696+0.67 RP
Jan 15, 2026 17:19	Jonathan Gopel	RUSTrust-1.92.0	Error
Jan 15, 2026 17:13	Jonathan Gopel	RUSTrust-1.92.0	Success	63,457
Jan 15, 2026 17:12	Jonathan Gopel	RUSTrust-1.92.0	Success	63,000
Jan 15, 2026 17:10	Jonathan Gopel	RUSTrust-1.92.0	Success	63,445
Jan 15, 2026 17:08	Jonathan Gopel	RUSTrust-1.92.0	Success	62,961+0.01 RP
Jan 15, 2026 17:02	Jonathan Gopel	RUSTrust-1.92.0	Success	62,965+128.21 RP
Jan 15, 2026 17:00	Jonathan Gopel	RUSTrust-1.92.0	Error
Jan 15, 2026 17:00	Jonathan Gopel	RUSTrust-1.92.0	Error
Jan 15, 2026 16:57	Jonathan Gopel	RUSTrust-1.92.0	Success	334,955
Jan 15, 2026 16:55	Jonathan Gopel	RUSTrust-1.92.0	Success	329,231
Jan 15, 2026 16:52	Jonathan Gopel	RUSTrust-1.92.0	Success	326,713+0.04 RP
Jan 15, 2026 16:52	Jonathan Gopel	RUSTrust-1.92.0	Success	335,118
Jan 15, 2026 16:50	Jonathan Gopel	RUSTrust-1.92.0	Success	327,167+2.93 RP
Jan 15, 2026 16:49	Jonathan Gopel	RUSTrust-1.92.0	Success	361,853+0.16 RP
Jan 15, 2026 16:48	Jonathan Gopel	RUSTrust-1.92.0	Success	369,278
Jan 15, 2026 16:41	Jonathan Gopel	RUSTrust-1.92.0	Success	363,899+0.64 RP
Jan 15, 2026 16:41	Jonathan Gopel	RUSTrust-1.92.0	Success	372,560+26.84 RP
Jan 15, 2026 03:47	Josu San Martin	CSHARP9.0.12	Error
Jan 15, 2026 03:00	Josu San Martin	CSHARP9.0.12	Success	56,335
Jan 15, 2026 02:58	Josu San Martin	CSHARP9.0.12	Success	138,617
Jan 15, 2026 02:38	Josu San Martin	CSHARP9.0.12	Success	134,925
Jan 15, 2026 02:36	Josu San Martin	CSHARP9.0.12	Success	56,324
Jan 15, 2026 02:35	Josu San Martin	CSHARP9.0.12	Success	73,132
Jan 15, 2026 02:30	Josu San Martin	CSHARP9.0.12	Success	76,568
Jan 15, 2026 02:21	Josu San Martin	CSHARP9.0.12	Success	396,270
Jan 15, 2026 02:10	Josu San Martin	CSHARP9.0.12	Success	387,879
Jan 15, 2026 02:10	Josu San Martin	CSHARP9.0.12	Success	60,835
Jan 15, 2026 02:09	Josu San Martin	CSHARP9.0.12	Success	78,021
Jan 15, 2026 01:25	Josu San Martin	CSHARP9.0.12	Success	87,835
Jan 15, 2026 01:24	Josu San Martin	CSHARP9.0.12	Success	87,813
Jan 15, 2026 01:24	Josu San Martin	CSHARP9.0.12	Success	56,456
Jan 15, 2026 01:23	Josu San Martin	CSHARP9.0.12	Success	60,635
Jan 15, 2026 01:20	Josu San Martin	CSHARP9.0.12	Success	78,000
Jan 15, 2026 01:11	Josu San Martin	CSHARP9.0.12	Success	76,584
Jan 15, 2026 00:33	Josu San Martin	CPPg++13.3.0	Success	6,083
Jan 15, 2026 00:29	Josu San Martin	CSHARP9.0.12	Success	487,233
Jan 15, 2026 00:19	Josu San Martin	CPPg++13.3.0	Success	10,284
Jan 15, 2026 00:16	Josu San Martin	CSHARP9.0.12	Success	519,517
Jan 15, 2026 00:02	Josu San Martin	CSHARP9.0.12	Success	100,612
Jan 12, 2026 18:58	Alexander Frolov	ZIG0.14.0	Success	25,514
Jan 12, 2026 18:55	Alexander Frolov	ZIG0.14.0	Success	25,425+21.16 RP
Jan 12, 2026 10:49	Min Li	CPPg++13.3.0	Success	2,067,654+4.84 RP
Jan 11, 2026 22:36	Sevas666	CSHARP9.0.11	Success	98,410+75.65 RP
Jan 11, 2026 22:31	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 22:25	Sevas666	CSHARP9.0.11	Success	385,106+25.97 RP
Jan 11, 2026 22:25	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 22:23	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 22:22	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 22:16	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 22:00	Sevas666	CSHARP9.0.11	Error
Jan 11, 2026 16:10	Pavel Skripkin	RUSTrust-1.92.0	Success	34,493+0.97 RP
Jan 11, 2026 16:09	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 16:06	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 16:03	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 15:56	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 15:42	Pavel Skripkin	RUSTrust-1.92.0	Success	34,609+3.12 RP
Jan 11, 2026 15:41	Pavel Skripkin	RUSTrust-1.92.0	Success	37,731
Jan 11, 2026 14:24	Pavel Skripkin	RUSTrust-1.92.0	Success	38,637
Jan 11, 2026 14:15	Pavel Skripkin	RUSTrust-1.92.0	Success	35,934
Jan 11, 2026 14:12	Pavel Skripkin	RUSTrust-1.92.0	Success	34,987+4.53 RP
Jan 11, 2026 13:54	Pavel Skripkin	RUSTrust-1.92.0	Success	35,551+28.12 RP
Jan 11, 2026 13:05	Pavel Skripkin	RUSTrust-1.92.0	Success	39,500+3.13 RP
Jan 11, 2026 12:39	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 12:36	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 11, 2026 08:39	Pavel Skripkin	RUSTrust-1.92.0	Success	39,994+9.02 RP
Jan 10, 2026 19:28	Alexander Frolov	ZIG0.14.0	Success	27,288
Jan 10, 2026 18:43	Alexander Frolov	ZIG0.14.0	Success	26,128+243.85 RP
Jan 10, 2026 18:39	Alexander Frolov	ZIG0.14.0	Error
Jan 10, 2026 16:19	Alexander Frolov	ZIG0.14.0	Success	65,128
Jan 10, 2026 12:37	Alexander Frolov	ZIG0.14.0	Success	48,884
Jan 10, 2026 12:25	Alexander Frolov	ZIG0.14.0	Success	51,958
Jan 10, 2026 12:09	Alexander Frolov	ZIG0.14.0	Success	47,695
Jan 10, 2026 11:06	Alexander Frolov	ZIG0.14.0	Success	46,700+0.59 RP
Jan 10, 2026 11:04	Alexander Frolov	ZIG0.14.0	Success	47,043
Jan 9, 2026 22:08	Alexander Frolov	ZIG0.14.0	Success	46,828+4.35 RP
Jan 9, 2026 22:00	Alexander Frolov	ZIG0.14.0	Success	47,802+1.98 RP
Jan 9, 2026 21:58	Alexander Frolov	ZIG0.14.0	Success	78,240
Jan 9, 2026 21:54	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:52	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:50	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:29	Alexander Frolov	ZIG0.14.0	Success	48,259+32.26 RP
Jan 9, 2026 21:18	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:17	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:15	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 21:13	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 20:31	Alexander Frolov	ZIG0.14.0	Success	88,400
Jan 9, 2026 20:25	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 20:09	Alexander Frolov	ZIG0.14.0	Success	79,336
Jan 9, 2026 20:03	Alexander Frolov	ZIG0.14.0	Success	88,523
Jan 9, 2026 19:58	Alexander Frolov	ZIG0.14.0	Success	81,358
Jan 9, 2026 19:55	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 19:54	Alexander Frolov	ZIG0.14.0	Error
Jan 9, 2026 18:54	AVG	CPPg++13.3.0	Success	44,762
Jan 9, 2026 18:51	AVG	CPPg++13.3.0	Success	42,905+5.21 RP
Jan 9, 2026 18:49	AVG	CPPg++13.3.0	Success	48,869

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