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 8, 2026 08:39	caando	CPPg++13.3.0	Success	7,899
Mar 8, 2026 08:38	caando	CPPg++13.3.0	Success	7,941
Mar 8, 2026 08:37	caando	CPPg++13.3.0	Error
Mar 8, 2026 08:35	caando	CPPg++13.3.0	Success	7,686
Mar 8, 2026 08:33	caando	CPPg++13.3.0	Success	8,259
Mar 8, 2026 08:32	caando	CPPg++13.3.0	Success	9,764
Mar 8, 2026 08:31	caando	CPPg++13.3.0	Success	9,378
Mar 8, 2026 08:31	caando	CPPg++13.3.0	Success	12,343
Mar 8, 2026 08:29	caando	CPPg++13.3.0	Success	20,576
Mar 8, 2026 08:14	caando	CPPg++13.3.0	Success	8,792
Mar 8, 2026 08:12	caando	CPPg++13.3.0	Success	9,256
Mar 8, 2026 08:07	caando	CPPg++13.3.0	Success	8,742
Mar 8, 2026 08:06	caando	CPPg++13.3.0	Success	38,965
Mar 8, 2026 07:55	caando	CPPg++13.3.0	Success	8,709
Mar 8, 2026 07:53	caando	CPPg++13.3.0	Success	8,802
Mar 8, 2026 07:51	caando	CPPg++13.3.0	Success	8,799
Mar 8, 2026 07:25	caando	CPPg++13.3.0	Success	9,362
Mar 8, 2026 07:24	caando	CPPg++13.3.0	Success	9,013
Mar 8, 2026 06:59	caando	CPPg++13.3.0	Success	8,243
Mar 8, 2026 06:42	caando	CPPg++13.3.0	Success	8,670
Mar 8, 2026 06:40	caando	CPPg++13.3.0	Success	8,383
Mar 8, 2026 06:31	caando	CPPg++13.3.0	Success	9,299
Mar 8, 2026 06:19	caando	CPPg++13.3.0	Success	8,393
Mar 8, 2026 06:18	caando	CPPg++13.3.0	Success	8,447
Mar 8, 2026 06:15	caando	CPPg++13.3.0	Success	8,625
Mar 8, 2026 06:00	caando	CPPg++13.3.0	Success	9,410
Mar 8, 2026 05:59	caando	CPPg++13.3.0	Error
Mar 8, 2026 05:58	caando	CPPg++13.3.0	Success	8,468
Mar 8, 2026 05:56	caando	CPPg++13.3.0	Success	10,221
Mar 8, 2026 05:54	caando	CPPg++13.3.0	Success	10,487
Mar 8, 2026 05:50	caando	CPPg++13.3.0	Success	8,514
Mar 8, 2026 05:47	caando	CPPg++13.3.0	Success	9,016
Mar 8, 2026 05:45	caando	CPPg++13.3.0	Success	9,379
Mar 8, 2026 05:35	caando	CPPg++13.3.0	Success	9,384
Mar 8, 2026 05:34	caando	CPPg++13.3.0	Success	9,365
Mar 8, 2026 00:26	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 8, 2026 00:23	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 8, 2026 00:14	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 8, 2026 00:11	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 8, 2026 00:07	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 7, 2026 23:43	avoidcatenjoyers	CPPclang++18.1.3	Success	2,079,607+4.81 RP
Mar 7, 2026 23:42	avoidcatenjoyers	CPPclang++18.1.3	Error
Mar 7, 2026 20:37	psep	CPPg++13.3.0	Success	58,503
Mar 7, 2026 20:36	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:35	psep	CPPg++13.3.0	Success	41,965
Mar 7, 2026 20:34	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:32	psep	CPPg++13.3.0	Success	41,825
Mar 7, 2026 20:30	psep	CPPg++13.3.0	Success	41,783
Mar 7, 2026 20:28	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:23	psep	CPPg++13.3.0	Success	46,767
Mar 7, 2026 20:22	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:20	psep	CPPg++13.3.0	Success	46,292
Mar 7, 2026 20:19	psep	CPPg++13.3.0	Success	41,285
Mar 7, 2026 20:15	psep	CPPg++13.3.0	Success	47,433
Mar 7, 2026 20:14	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:08	psep	CPPg++13.3.0	Success	60,637
Mar 7, 2026 20:07	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:05	psep	CPPg++13.3.0	Error
Mar 7, 2026 20:00	psep	CPPg++13.3.0	Success	41,813
Mar 7, 2026 19:58	psep	CPPg++13.3.0	Error
Mar 7, 2026 19:57	psep	CPPg++13.3.0	Error
Mar 7, 2026 19:50	psep	CPPg++13.3.0	Success	41,025+4.11 RP
Mar 7, 2026 19:49	psep	CPPg++13.3.0	Error
Mar 7, 2026 19:48	psep	CPPg++13.3.0	Success	54,057
Mar 7, 2026 19:47	psep	CPPg++13.3.0	Success	58,627
Mar 7, 2026 19:46	psep	CPPg++13.3.0	Success	51,370
Mar 7, 2026 19:45	psep	CPPg++13.3.0	Success	48,046
Mar 7, 2026 19:41	psep	CPPg++13.3.0	Success	57,780
Mar 7, 2026 19:37	psep	CPPg++13.3.0	Success	46,507
Mar 7, 2026 19:33	psep	CPPg++13.3.0	Success	43,608
Mar 7, 2026 19:21	wn	CPPclang++18.1.3	Error
Mar 7, 2026 19:21	wn	CPPclang++18.1.3	Error
Mar 7, 2026 18:16	wn	CPPclang++18.1.3	Success	4,400
Mar 7, 2026 18:00	psep	CPPg++13.3.0	Success	44,271
Mar 7, 2026 17:56	psep	CPPg++13.3.0	Success	48,400
Mar 7, 2026 14:10	wn	CPPclang++18.1.3	Success	4,684
Mar 7, 2026 14:01	wn	CPPclang++18.1.3	Success	4,380
Mar 7, 2026 12:42	Mohammad Anas Khan	CPPg++13.3.0	Success	150,679
Mar 7, 2026 12:41	Mohammad Anas Khan	CPPg++13.3.0	Success	150,632+61.45 RP
Mar 7, 2026 12:38	Mohammad Anas Khan	CPPg++13.3.0	Error
Mar 7, 2026 12:34	Mohammad Anas Khan	CPPg++13.3.0	Success	2,026,339
Mar 7, 2026 09:43	Mohammad Anas Khan	CPPg++13.3.0	Success	2,024,553+4.94 RP
Mar 7, 2026 05:33	Josu San Martin	CPPclang++18.1.3	Success	5,187
Mar 7, 2026 05:25	Josu San Martin	CPPclang++18.1.3	Success	5,825
Mar 6, 2026 21:46	wn	CPPclang++18.1.3	Success	4,437
Mar 6, 2026 21:45	wn	CPPclang++18.1.3	Success	4,377
Mar 6, 2026 21:33	wn	CPPclang++18.1.3	Success	4,437
Mar 6, 2026 21:33	wn	CPPclang++18.1.3	Success	4,438
Mar 6, 2026 21:32	wn	CPPclang++18.1.3	Success	4,437
Mar 6, 2026 21:32	wn	CPPclang++18.1.3	Success	4,440
Mar 6, 2026 21:32	wn	CPPclang++18.1.3	Success	4,486
Mar 6, 2026 21:32	wn	CPPclang++18.1.3	Success	4,444
Mar 6, 2026 21:31	wn	CPPclang++18.1.3	Success	4,561
Mar 6, 2026 21:31	wn	CPPclang++18.1.3	Success	4,372
Mar 6, 2026 21:25	wn	CPPclang++18.1.3	Error
Mar 6, 2026 20:00	caando	CPPg++13.3.0	Success	11,854
Mar 6, 2026 20:00	caando	CPPg++13.3.0	Success	11,908
Mar 6, 2026 19:56	caando	CPPg++13.3.0	Success	11,880
Mar 6, 2026 19:54	caando	CPPg++13.3.0	Success	11,859
Mar 6, 2026 19:52	caando	CPPg++13.3.0	Success	12,027

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