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
Mar 14, 2026 16:03	Dominique Garmier	CPPclang++18.1.3	Success	8,173
Mar 14, 2026 15:03	Dominique Garmier	CPPclang++18.1.3	Error
Mar 14, 2026 14:37	Dominique Garmier	CPPclang++18.1.3	Error
Mar 14, 2026 14:24	Dominique Garmier	CPPclang++18.1.3	Error
Mar 14, 2026 14:22	matsuoka-601	CPPclang++18.1.3	Error
Mar 14, 2026 14:13	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,110
Mar 14, 2026 14:11	Mikołaj Uzarski	CPPclang++18.1.3	Success	10,793
Mar 14, 2026 14:05	Dominique Garmier	CPPclang++18.1.3	Error
Mar 14, 2026 13:57	Yuriy Lyfenko	CPPclang++18.1.3	Success	7,088
Mar 14, 2026 13:57	Dominique Garmier	CPPclang++18.1.3	Success	8,368
Mar 14, 2026 13:55	Dominique Garmier	CPPclang++18.1.3	Error
Mar 14, 2026 13:54	Yuriy Lyfenko	CPPg++13.3.0	Success	8,083
Mar 14, 2026 13:53	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 14, 2026 13:50	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 14, 2026 13:34	Yuriy Lyfenko	CPPg++13.3.0	Success	2,119,171
Mar 14, 2026 13:32	Yuriy Lyfenko	CPPg++13.3.0	Success	2,106,560
Mar 14, 2026 13:09	Dominique Garmier	CPPclang++18.1.3	Success	18,781
Mar 14, 2026 12:14	zielaj	CPPclang++18.1.3	Success	3,746
Mar 14, 2026 11:44	Dominique Garmier	CPPg++13.3.0	Error
Mar 14, 2026 11:35	Dominique Garmier	CPPclang++18.1.3	Success	15,390
Mar 14, 2026 11:22	Dominique Garmier	CPPg++13.3.0	Success	8,753
Mar 14, 2026 11:00	Dominique Garmier	CPPg++13.3.0	Success	16,613
Mar 14, 2026 04:46	caando	CPPg++13.3.0	Success	6,858
Mar 14, 2026 04:38	caando	CPPg++13.3.0	Success	6,925
Mar 14, 2026 04:37	caando	CPPg++13.3.0	Success	5,971
Mar 14, 2026 04:33	caando	CPPg++13.3.0	Success	6,253
Mar 13, 2026 22:29	wn	CPPclang++18.1.3	Success	5,817
Mar 13, 2026 22:27	wn	CPPclang++18.1.3	Success	5,806
Mar 13, 2026 22:20	wn	CPPclang++18.1.3	Success	5,882
Mar 13, 2026 21:59	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 21:54	Mikołaj Uzarski	CPPclang++18.1.3	Success	27,900
Mar 13, 2026 21:42	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 21:31	Mikołaj Uzarski	CPPclang++18.1.3	Error
Mar 13, 2026 21:12	wn	CPPclang++18.1.3	Success	6,343
Mar 13, 2026 21:03	wn	CPPclang++18.1.3	Success	6,227
Mar 13, 2026 20:40	wn	CPPclang++18.1.3	Success	6,547
Mar 13, 2026 20:24	caando	CPPg++13.3.0	Success	5,443
Mar 13, 2026 20:24	caando	CPPg++13.3.0	Success	5,000
Mar 13, 2026 19:52	wn	CPPclang++18.1.3	Success	4,337
Mar 13, 2026 19:42	wn	CPPclang++18.1.3	Error
Mar 13, 2026 19:41	wn	CPPclang++18.1.3	Error
Mar 13, 2026 19:39	wn	CPPclang++18.1.3	Error
Mar 13, 2026 19:38	wn	CPPclang++18.1.3	Success	4,335+3.72 RP
Mar 13, 2026 19:36	wn	CPPclang++18.1.3	Error
Mar 13, 2026 19:08	Keefe	CPPg++13.3.0	Error
Mar 13, 2026 18:54	wn	CPPclang++18.1.3	Success	4,342
Mar 13, 2026 18:52	wn	CPPclang++18.1.3	Success	4,368
Mar 13, 2026 18:44	wn	CPPclang++18.1.3	Success	4,406
Mar 13, 2026 18:41	caando	CPPg++13.3.0	Success	5,707
Mar 13, 2026 17:51	caando	CPPg++13.3.0	Success	4,679
Mar 13, 2026 17:47	caando	CPPg++13.3.0	Error
Mar 13, 2026 17:42	Keefe	CPPg++13.3.0	Success	8,270+686.20 RP
Mar 13, 2026 17:42	wn	CPPclang++18.1.3	Success	4,344
Mar 13, 2026 17:36	wn	CPPclang++18.1.3	Success	4,420
Mar 13, 2026 17:35	wn	CPPclang++18.1.3	Success	4,400
Mar 13, 2026 17:34	caando	CPPg++13.3.0	Success	6,896
Mar 13, 2026 17:19	Dominique Garmier	CPPg++13.3.0	Error
Mar 13, 2026 17:15	Dominique Garmier	CPPclang++18.1.3	Success	7,930+21.57 RP
Mar 13, 2026 17:11	wn	CPPclang++18.1.3	Success	4,343
Mar 13, 2026 17:05	caando	CPPg++13.3.0	Success	5,865
Mar 13, 2026 16:59	wn	CPPclang++18.1.3	Error
Mar 13, 2026 16:57	caando	CPPg++13.3.0	Success	4,768
Mar 13, 2026 16:54	caando	CPPg++13.3.0	Success	4,695
Mar 13, 2026 16:49	caando	CPPg++13.3.0	Success	5,792
Mar 13, 2026 16:43	caando	CPPg++13.3.0	Success	5,889
Mar 13, 2026 16:40	wn	CPPclang++18.1.3	Success	4,434
Mar 13, 2026 16:39	caando	CPPg++13.3.0	Success	4,650
Mar 13, 2026 16:37	caando	CPPg++13.3.0	Success	6,073
Mar 13, 2026 16:35	Dominique Garmier	CPPclang++18.1.3	Success	12,979
Mar 13, 2026 16:33	caando	CPPg++13.3.0	Success	5,494
Mar 13, 2026 16:32	Dominique Garmier	CPPclang++18.1.3	Error
Mar 13, 2026 16:30	Dominique Garmier	CPPg++13.3.0	Error
Mar 13, 2026 16:19	Dominique Garmier	CPPclang++18.1.3	Success	8,068+5.05 RP
Mar 13, 2026 16:04	Dominique Garmier	CPPclang++18.1.3	Success	11,328
Mar 13, 2026 16:02	wn	CPPclang++18.1.3	Success	4,431
Mar 13, 2026 15:50	Dominique Garmier	CPPclang++18.1.3	Success	79,611
Mar 13, 2026 15:49	Mikołaj Uzarski	CPPclang++18.1.3	Error
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

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