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 10, 2026 15:30	Jarno	RUSTrust-1.94.0	Success	52,143
Mar 10, 2026 15:25	Jarno	RUSTrust-1.94.0	Success	60,443
Mar 10, 2026 15:20	Jarno	RUSTrust-1.94.0	Success	48,027
Mar 10, 2026 15:19	Jarno	RUSTrust-1.94.0	Success	47,920
Mar 10, 2026 15:13	Jarno	RUSTrust-1.94.0	Success	56,514
Mar 10, 2026 15:13	Jarno	RUSTrust-1.94.0	Success	56,343
Mar 10, 2026 14:52	Jarno	RUSTrust-1.94.0	Success	47,084+33.51 RP
Mar 10, 2026 14:47	Jarno	RUSTrust-1.94.0	Success	55,905+153.28 RP
Mar 10, 2026 14:41	Jarno	RUSTrust-1.94.0	Success	390,641+25.60 RP
Mar 10, 2026 14:34	Sergey Serebryakov	CPPg++13.3.0	Success	9,162+78.60 RP
Mar 10, 2026 14:24	Keefe	CPPg++13.3.0	Success	34,567
Mar 10, 2026 13:59	Keefe	CPPg++13.3.0	Success	35,579
Mar 10, 2026 13:44	Sergey Serebryakov	CPPg++13.3.0	Success	9,877
Mar 10, 2026 13:42	Sergey Serebryakov	CPPg++13.3.0	Success	9,873+1'007.72 RP
Mar 10, 2026 05:33	olliecrow	RUSTrust-1.94.0	Success	389,057
Mar 10, 2026 05:14	olliecrow	RUSTrust-1.93.0	Success	365,540
Mar 10, 2026 04:20	olliecrow	CPPclang++18.1.3	Error	+1'478.57 RP
Mar 9, 2026 21:04	wn	CPPclang++18.1.3	Success	4,437
Mar 9, 2026 20:34	wn	CPPclang++18.1.3	Success	4,364
Mar 9, 2026 20:32	wn	CPPg++13.3.0	Success	4,837
Mar 9, 2026 20:32	wn	CPPg++13.3.0	Success	9,491
Mar 9, 2026 20:29	wn	CPPg++13.3.0	Success	5,043
Mar 9, 2026 20:29	wn	CPPg++13.3.0	Success	9,930
Mar 9, 2026 20:24	wn	CPPg++13.3.0	Error
Mar 9, 2026 20:24	wn	CPPg++13.3.0	Success	47,542
Mar 9, 2026 20:16	wn	CPPclang++18.1.3	Success	48,708
Mar 9, 2026 20:04	Pavel Samygin	CPPg++13.3.0	Error
Mar 9, 2026 16:44	wn	CPPclang++18.1.3	Success	4,357
Mar 9, 2026 16:36	wn	CPPclang++18.1.3	Success	4,401
Mar 9, 2026 16:14	wn	CPPclang++18.1.3	Success	4,402
Mar 9, 2026 15:57	wn	CPPclang++18.1.3	Success	5,433
Mar 9, 2026 10:32	Ilya Alimov	CPPclang++18.1.3	Error
Mar 9, 2026 10:26	Ilya Alimov	CPPclang++18.1.3	Error
Mar 9, 2026 05:14	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 05:00	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:52	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:43	olliecrow	CPPg++13.3.0	Success	6,519
Mar 9, 2026 04:30	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:44	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:35	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:23	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:05	olliecrow	CPPg++13.3.0	Success	5,947
Mar 9, 2026 02:50	olliecrow	CPPg++13.3.0	Success	5,398+65.55 RP
Mar 9, 2026 02:29	olliecrow	CPPg++13.3.0	Success	5,675
Mar 8, 2026 22:46	wn	CPPclang++18.1.3	Success	4,420
Mar 8, 2026 22:36	wn	CPPclang++18.1.3	Success	4,439
Mar 8, 2026 21:50	wn	CPPclang++18.1.3	Success	4,471
Mar 8, 2026 21:49	wn	CPPclang++18.1.3	Success	4,609
Mar 8, 2026 21:23	wn	CPPclang++18.1.3	Success	4,380
Mar 8, 2026 21:20	wn	CPPclang++18.1.3	Success	4,357
Mar 8, 2026 20:22	wn	CPPclang++18.1.3	Success	4,372
Mar 8, 2026 20:10	wn	CPPclang++18.1.3	Success	4,468
Mar 8, 2026 19:53	wn	CPPclang++18.1.3	Success	4,357
Mar 8, 2026 19:40	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:40	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:39	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:18	wn	CPPclang++18.1.3	Success	4,368
Mar 8, 2026 19:16	wn	CPPclang++18.1.3	Success	4,399
Mar 8, 2026 19:13	wn	CPPclang++18.1.3	Success	4,712
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,855
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,438
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,455
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,816
Mar 8, 2026 19:11	wn	CPPclang++18.1.3	Success	4,408
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,846
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,439
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,845
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,437
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,485
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,443
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,443
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,438
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,454
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,438
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,440
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,453
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,448
Mar 8, 2026 19:08	wn	CPPclang++18.1.3	Success	4,455
Mar 8, 2026 19:05	wn	CPPclang++18.1.3	Success	4,446
Mar 8, 2026 17:59	wn	CPPclang++18.1.3	Success	4,370
Mar 8, 2026 17:59	wn	CPPclang++18.1.3	Success	4,370
Mar 8, 2026 17:58	wn	CPPclang++18.1.3	Success	4,385
Mar 8, 2026 17:05	wn	CPPclang++18.1.3	Success	4,387
Mar 8, 2026 17:04	wn	CPPclang++18.1.3	Error
Mar 8, 2026 16:48	caando	CPPg++13.3.0	Success	5,830
Mar 8, 2026 15:47	caando	CPPg++13.3.0	Success	5,593
Mar 8, 2026 15:46	caando	CPPg++13.3.0	Success	5,557
Mar 8, 2026 15:43	caando	CPPg++13.3.0	Success	5,545
Mar 8, 2026 15:29	caando	CPPg++13.3.0	Success	8,457
Mar 8, 2026 15:27	caando	CPPg++13.3.0	Success	5,129
Mar 8, 2026 15:19	caando	CPPg++13.3.0	Success	8,267
Mar 8, 2026 15:18	caando	CPPg++13.3.0	Success	8,268
Mar 8, 2026 15:18	caando	CPPg++13.3.0	Success	8,264
Mar 8, 2026 15:16	caando	CPPg++13.3.0	Success	8,265
Mar 8, 2026 14:54	caando	CPPg++13.3.0	Success	9,011
Mar 8, 2026 14:53	caando	CPPg++13.3.0	Success	9,106
Mar 8, 2026 14:52	caando	CPPg++13.3.0	Success	9,017
Mar 8, 2026 11:44	wn	CPPclang++18.1.3	Success	5,558
Mar 8, 2026 11:18	wn	CPPclang++18.1.3	Success	4,759
Mar 8, 2026 11:17	wn	CPPclang++18.1.3	Success	4,600

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