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 13, 2026 15:48	Dominique Garmier	CPPclang++18.1.3	Success	8,718
Mar 13, 2026 15:46	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 15:43	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 15:42	Dominique Garmier	CPPclang++18.1.3	Success	8,107
Mar 13, 2026 15:37	Dominique Garmier	CPPclang++18.1.3	Success	10,405
Mar 13, 2026 15:35	Dominique Garmier	CPPclang++18.1.3	Success	15,616
Mar 13, 2026 15:33	Dominique Garmier	CPPclang++18.1.3	Success	8,101+30.47 RP
Mar 13, 2026 15:32	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 15:30	Dominique Garmier	CPPclang++18.1.3	Success	8,306+241.86 RP
Mar 13, 2026 15:30	Dominique Garmier	CPPg++13.3.0	Success	10,394+101.80 RP
Mar 13, 2026 15:26	wn	CPPclang++18.1.3	Error
Mar 13, 2026 15:24	wn	CPPclang++18.1.3	Error
Mar 13, 2026 15:21	Dominique Garmier	CPPclang++18.1.3	Success	11,662
Mar 13, 2026 15:20	Dominique Garmier	CPPclang++18.1.3	Success	11,624+2.95 RP
Mar 13, 2026 15:19	wn	CPPclang++18.1.3	Error
Mar 13, 2026 15:18	wn	CPPclang++18.1.3	Error
Mar 13, 2026 15:15	Dominique Garmier	CPPclang++18.1.3	Success	11,664+6.71 RP
Mar 13, 2026 15:14	Dominique Garmier	CPPclang++18.1.3	Success	13,041
Mar 13, 2026 15:12	Dominique Garmier	CPPclang++18.1.3	Success	77,023
Mar 13, 2026 15:11	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 15:10	Hung T.Nguyen	CPPg++13.3.0	Success	44,519
Mar 13, 2026 15:09	Dominique Garmier	CPPclang++18.1.3	Success	11,756+8.81 RP
Mar 13, 2026 15:08	Dominique Garmier	CPPclang++18.1.3	Success	12,377
Mar 13, 2026 15:04	Dominique Garmier	CPPclang++18.1.3	Success	11,879+14.42 RP
Mar 13, 2026 15:01	Dominique Garmier	CPPclang++18.1.3	Success	16,268
Mar 13, 2026 14:59	caando	CPPg++13.3.0	Error
Mar 13, 2026 14:58	Hung T.Nguyen	CPPg++13.3.0	Success	43,124
Mar 13, 2026 14:57	Eric Ceglie	CPPclang++18.1.3	Success	14,531+309.40 RP
Mar 13, 2026 14:57	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 14:55	caando	CPPg++13.3.0	Error
Mar 13, 2026 14:47	Dominique Garmier	CPPclang++18.1.3	Success	12,263
Mar 13, 2026 14:46	Dominique Garmier	CPPclang++18.1.3	Success	12,408
Mar 13, 2026 14:44	Dominique Garmier	CPPclang++18.1.3	Success	12,086+100.24 RP
Mar 13, 2026 14:39	Dominique Garmier	CPPclang++18.1.3	Success	13,752+283.55 RP
Mar 13, 2026 14:37	Hung T.Nguyen	CPPg++13.3.0	Success	43,124+26.57 RP
Mar 13, 2026 14:36	Dominique Garmier	CPPclang++18.1.3	Success	25,991
Mar 13, 2026 14:35	caando	CPPg++13.3.0	Success	7,972
Mar 13, 2026 14:34	Dominique Garmier	CPPclang++18.1.3	Success	47,618
Mar 13, 2026 14:32	Eric Ceglie	CPPclang++18.1.3	Success	26,400+2.71 RP
Mar 13, 2026 14:32	Eric Ceglie	CPPg++13.3.0	Success	29,761
Mar 13, 2026 14:32	Hung T.Nguyen	CPPg++13.3.0	Success	49,872
Mar 13, 2026 14:31	caando	CPPg++13.3.0	Error
Mar 13, 2026 14:30	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 13, 2026 14:29	Eric Ceglie	CPPclang++18.1.3	Success	27,466
Mar 13, 2026 14:29	Eric Ceglie	CPPclang++18.1.3	Success	27,955
Mar 13, 2026 14:28	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 13, 2026 14:26	Eric Ceglie	CPPg++13.3.0	Success	29,540
Mar 13, 2026 14:26	Eric Ceglie	CPPg++13.3.0	Success	28,603
Mar 13, 2026 14:26	Eric Ceglie	CPPg++13.3.0	Success	28,350
Mar 13, 2026 14:24	Hung T.Nguyen	CPPg++13.3.0	Success	76,290
Mar 13, 2026 14:19	caando	CPPg++13.3.0	Error	+13.70 RP
Mar 13, 2026 14:19	Dominique Garmier	CPPclang++18.1.3	Success	54,204
Mar 13, 2026 14:18	Dominique Garmier	CPPclang++18.1.3	Success	62,889
Mar 13, 2026 14:18	caando	CPPg++13.3.0	Success	4,960
Mar 13, 2026 14:13	Dominique Garmier	CPPclang++18.1.3	Error
Mar 13, 2026 14:13	caando	CPPg++13.3.0	Success	7,210
Mar 13, 2026 13:58	caando	CPPg++13.3.0	Success	7,979
Mar 13, 2026 13:54	caando	CPPg++13.3.0	Success	7,693
Mar 13, 2026 13:52	Dominique Garmier	CPPclang++18.1.3	Success	146,771
Mar 13, 2026 13:44	Dominique Garmier	CPPclang++18.1.3	Success	151,055
Mar 13, 2026 13:41	Dominique Garmier	CPPclang++18.1.3	Success	97,115
Mar 13, 2026 13:26	Eric Ceglie	CPPg++13.3.0	Success	52,501
Mar 13, 2026 13:24	Eric Ceglie	CPPg++13.3.0	Success	209,678
Mar 13, 2026 13:20	Dominique Garmier	CPPclang++18.1.3	Success	22,542+41.01 RP
Mar 13, 2026 13:19	Dominique Garmier	CPPclang++18.1.3	Success	130,810
Mar 13, 2026 13:17	Dominique Garmier	CPPg++13.3.0	Success	126,572
Mar 13, 2026 13:00	Eric Ceglie	CPPclang++18.1.3	Success	26,663
Mar 13, 2026 12:55	Dominique Garmier	CPPclang++18.1.3	Success	165,201
Mar 13, 2026 12:55	Eric Ceglie	CPPg++13.3.0	Success	42,468
Mar 13, 2026 12:53	Dominique Garmier	CPPclang++18.1.3	Success	146,655
Mar 13, 2026 12:53	Eric Ceglie	CPPg++13.3.0	Success	27,919
Mar 13, 2026 12:53	Eric Ceglie	CPPg++13.3.0	Success	27,865
Mar 13, 2026 12:53	Eric Ceglie	CPPclang++18.1.3	Success	45,278
Mar 13, 2026 12:52	Dominique Garmier	CPPclang++18.1.3	Success	124,793
Mar 13, 2026 12:50	Dominique Garmier	CPPclang++18.1.3	Success	24,845
Mar 13, 2026 12:50	Eric Ceglie	CPPg++13.3.0	Success	43,704
Mar 13, 2026 12:49	Eric Ceglie	CPPg++13.3.0	Success	27,869
Mar 13, 2026 12:49	Eric Ceglie	CPPg++13.3.0	Success	27,872
Mar 13, 2026 12:49	Eric Ceglie	CPPg++13.3.0	Success	27,877
Mar 13, 2026 12:48	Dominique Garmier	CPPclang++18.1.3	Success	24,858
Mar 13, 2026 12:47	Eric Ceglie	CPPg++13.3.0	Success	28,318
Mar 13, 2026 12:47	Eric Ceglie	CPPg++13.3.0	Success	28,228
Mar 13, 2026 12:47	Eric Ceglie	CPPg++13.3.0	Success	28,236
Mar 13, 2026 12:47	Dominique Garmier	CPPg++13.3.0	Success	79,353
Mar 13, 2026 12:47	Dominique Garmier	CPPclang++18.1.3	Success	24,838+3.02 RP
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	27,063
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,665
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,590+4.44 RP
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,972
Mar 13, 2026 12:44	Dominique Garmier	CPPg++13.3.0	Success	29,782
Mar 13, 2026 12:44	Eric Ceglie	CPPclang++18.1.3	Success	27,843
Mar 13, 2026 12:44	Eric Ceglie	CPPclang++18.1.3	Success	27,588
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	26,908+0.79 RP
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	27,965
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	26,965+13.49 RP
Mar 13, 2026 12:43	Dominique Garmier	CPPg++13.3.0	Success	132,089
Mar 13, 2026 12:42	Eric Ceglie	CPPg++13.3.0	Success	34,026
Mar 13, 2026 12:42	Eric Ceglie	CPPg++13.3.0	Success	34,006
Mar 13, 2026 12:41	Eric Ceglie	CPPg++13.3.0	Success	38,136
Mar 13, 2026 12:41	Eric Ceglie	CPPg++13.3.0	Success	37,151

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