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
Mar 4, 2026 22:19	olliecrow	CPPclang++18.1.3	Success	5,968
Mar 4, 2026 17:28	juniskewl	CPPclang++18.1.3	Success	43,226
Mar 4, 2026 17:26	caando	CPPg++13.3.0	Success	5,254
Mar 4, 2026 17:14	juniskewl	CPPclang++18.1.3	Success	44,820
Mar 4, 2026 17:12	caando	CPPg++13.3.0	Success	5,161
Mar 4, 2026 17:09	caando	CPPg++13.3.0	Success	5,273
Mar 4, 2026 17:06	caando	CPPg++13.3.0	Success	5,588
Mar 4, 2026 17:04	juniskewl	CPPclang++18.1.3	Success	42,960+47.77 RP
Mar 4, 2026 17:04	caando	CPPg++13.3.0	Success	5,121+14.76 RP
Mar 4, 2026 17:03	caando	CPPg++13.3.0	Success	5,299
Mar 4, 2026 17:01	juniskewl	CPPclang++18.1.3	Success	61,847
Mar 4, 2026 16:58	juniskewl	CPPclang++18.1.3	Success	59,241
Mar 4, 2026 16:55	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:49	juniskewl	CPPclang++18.1.3	Success	62,665
Mar 4, 2026 16:46	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:43	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:34	juniskewl	CPPclang++18.1.3	Success	54,053+5.04 RP
Mar 4, 2026 16:33	juniskewl	CPPg++13.3.0	Success	60,639
Mar 4, 2026 16:27	juniskewl	CPPclang++18.1.3	Success	55,567+15.20 RP
Mar 4, 2026 16:26	caando	CPPg++13.3.0	Error
Mar 4, 2026 16:22	caando	CPPg++13.3.0	Error
Mar 4, 2026 16:12	caando	CPPg++13.3.0	Success	6,451
Mar 4, 2026 16:12	caando	CPPg++13.3.0	Success	6,363
Mar 4, 2026 16:11	juniskewl	CPPclang++18.1.3	Error
Mar 4, 2026 16:09	caando	CPPg++13.3.0	Success	5,283
Mar 4, 2026 16:07	caando	CPPg++13.3.0	Success	5,160+12.69 RP
Mar 4, 2026 16:06	caando	CPPg++13.3.0	Success	5,846
Mar 4, 2026 16:04	caando	CPPg++13.3.0	Success	5,451
Mar 4, 2026 15:57	caando	CPPg++13.3.0	Success	5,282
Mar 4, 2026 15:56	caando	CPPg++13.3.0	Success	5,287
Mar 4, 2026 15:54	caando	CPPg++13.3.0	Success	5,369
Mar 4, 2026 15:53	caando	CPPg++13.3.0	Success	5,327
Mar 4, 2026 15:49	caando	CPPg++13.3.0	Success	5,194+31.36 RP
Mar 4, 2026 15:40	caando	CPPg++13.3.0	Success	5,280+6.43 RP
Mar 4, 2026 15:26	juniskewl	CPPg++13.3.0	Success	63,707
Mar 4, 2026 15:25	juniskewl	CPPclang++18.1.3	Success	60,693+7.78 RP
Mar 4, 2026 15:24	juniskewl	CPPg++13.3.0	Success	63,702+152.15 RP
Mar 4, 2026 15:22	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:14	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:13	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:12	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:12	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:10	juniskewl	CPPg++13.3.0	Error
Mar 4, 2026 15:03	juniskewl	CPPclang++18.1.3	Success	2,069,359+4.83 RP
Mar 4, 2026 08:11	Daniel	RUSTrust-1.93.1	Success	60,504
Mar 4, 2026 08:07	Daniel	RUSTrust-1.93.1	Error
Mar 4, 2026 07:58	Daniel	RUSTrust-1.93.1	Error
Mar 4, 2026 07:46	Daniel	RUSTrust-1.93.1	Success	41,103
Mar 4, 2026 07:43	Daniel	RUSTrust-1.93.1	Success	42,576
Mar 4, 2026 07:35	Daniel	RUSTrust-1.93.1	Success	38,474+70.39 RP
Mar 4, 2026 07:30	Daniel	RUSTrust-1.93.1	Error
Mar 4, 2026 07:24	Daniel	RUSTrust-1.93.1	Success	70,449
Mar 4, 2026 07:20	Daniel	RUSTrust-1.93.1	Success	53,783
Mar 4, 2026 07:18	Daniel	RUSTrust-1.93.1	Success	52,795
Mar 4, 2026 07:16	Daniel	RUSTrust-1.93.1	Success	57,420
Mar 4, 2026 07:12	Daniel	RUSTrust-1.93.1	Success	52,762+0.05 RP
Mar 4, 2026 06:58	Daniel	RUSTrust-1.93.1	Success	52,854
Mar 4, 2026 06:58	Daniel	RUSTrust-1.93.1	Success	52,797
Mar 3, 2026 14:01	lipapipa	CPPg++13.3.0	Success	7,238
Mar 3, 2026 12:28	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 12:26	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 08:26	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 08:20	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 08:17	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 08:12	Priyansh Rathi	RUSTrust-1.93.1	Success	40,854
Mar 3, 2026 08:06	Priyansh Rathi	RUSTrust-1.93.1	Success	48,148
Mar 3, 2026 08:02	Priyansh Rathi	RUSTrust-1.93.1	Success	61,969
Mar 3, 2026 08:00	Priyansh Rathi	RUSTrust-1.93.1	Success	71,074
Mar 3, 2026 07:57	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 07:53	Priyansh Rathi	RUSTrust-1.93.1	Success	51,365
Mar 3, 2026 07:41	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 3, 2026 07:36	Priyansh Rathi	RUSTrust-1.93.1	Success	42,013
Mar 3, 2026 07:36	Priyansh Rathi	RUSTrust-1.93.1	Success	40,597
Mar 3, 2026 07:32	Priyansh Rathi	RUSTrust-1.93.1	Success	40,542+3.79 RP
Mar 3, 2026 07:29	Priyansh Rathi	RUSTrust-1.93.1	Success	47,787
Mar 3, 2026 07:26	Priyansh Rathi	RUSTrust-1.93.1	Success	41,174+2.39 RP
Mar 3, 2026 07:13	Uzman Zawahir	CPPg++13.3.0	Success	2,066,257+4.84 RP
Mar 2, 2026 23:03	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 22:19	Priyansh Rathi	RUSTrust-1.93.1	Success	47,261
Mar 2, 2026 22:16	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 22:11	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 22:07	Priyansh Rathi	RUSTrust-1.93.1	Success	42,425
Mar 2, 2026 22:04	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 21:59	Priyansh Rathi	RUSTrust-1.93.1	Success	44,542
Mar 2, 2026 21:46	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 21:44	Priyansh Rathi	RUSTrust-1.93.1	Success	104,858
Mar 2, 2026 21:41	Priyansh Rathi	RUSTrust-1.93.1	Success	104,854
Mar 2, 2026 21:39	Priyansh Rathi	RUSTrust-1.93.1	Success	258,760
Mar 2, 2026 21:37	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 21:35	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 21:33	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 21:15	Priyansh Rathi	RUSTrust-1.93.1	Success	65,367
Mar 2, 2026 21:04	Priyansh Rathi	RUSTrust-1.93.1	Success	41,703
Mar 2, 2026 16:58	Priyansh Rathi	RUSTrust-1.93.1	Success	41,584+0.31 RP
Mar 2, 2026 16:57	Priyansh Rathi	RUSTrust-1.93.1	Success	41,638+0.14 RP
Mar 2, 2026 16:49	Priyansh Rathi	RUSTrust-1.93.1	Success	44,608
Mar 2, 2026 16:40	Priyansh Rathi	RUSTrust-1.93.1	Success	57,872
Mar 2, 2026 16:19	Priyansh Rathi	RUSTrust-1.93.1	Error
Mar 2, 2026 16:17	Priyansh Rathi	RUSTrust-1.93.1	Success	55,788
Mar 2, 2026 16:14	Priyansh Rathi	RUSTrust-1.93.1	Success	41,862

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