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 17, 2026 18:22	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,210
Mar 17, 2026 17:35	Sergey Serebryakov	CPPg++13.3.0	Success	7,204
Mar 17, 2026 17:32	Sergey Serebryakov	CPPg++13.3.0	Success	7,189
Mar 17, 2026 17:23	Sergey Serebryakov	CPPg++13.3.0	Success	7,054
Mar 17, 2026 17:13	Sergey Serebryakov	CPPg++13.3.0	Success	7,063
Mar 17, 2026 17:00	caando	CPPg++13.3.0	Success	5,173
Mar 17, 2026 16:59	caando	CPPg++13.3.0	Success	5,303
Mar 17, 2026 16:56	caando	CPPg++13.3.0	Success	5,215
Mar 17, 2026 16:54	caando	CPPg++13.3.0	Success	5,188
Mar 17, 2026 16:52	caando	CPPg++13.3.0	Success	5,105
Mar 17, 2026 16:49	caando	CPPg++13.3.0	Success	4,722
Mar 17, 2026 16:49	Sergey Serebryakov	CPPg++13.3.0	Success	9,304
Mar 17, 2026 16:48	Sergey Serebryakov	CPPg++13.3.0	Success	9,306
Mar 17, 2026 16:44	caando	CPPg++13.3.0	Success	5,128
Mar 17, 2026 16:38	caando	CPPg++13.3.0	Success	4,896
Mar 17, 2026 16:36	shartgepetto	CPPclang++18.1.3	Success	7,235
Mar 17, 2026 16:35	shartgepetto	CPPclang++18.1.3	Success	7,223+7.62 RP
Mar 17, 2026 16:27	caando	CPPg++13.3.0	Success	4,891
Mar 17, 2026 16:26	caando	CPPg++13.3.0	Success	4,941
Mar 17, 2026 16:25	caando	CPPg++13.3.0	Error
Mar 17, 2026 16:20	caando	CPPg++13.3.0	Success	5,103
Mar 17, 2026 16:13	caando	CPPg++13.3.0	Success	5,141
Mar 17, 2026 16:11	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,112
Mar 17, 2026 16:11	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,132
Mar 17, 2026 16:09	shartgepetto	CPPclang++18.1.3	Success	7,384
Mar 17, 2026 16:09	shartgepetto	CPPclang++18.1.3	Success	7,413
Mar 17, 2026 16:09	shartgepetto	CPPclang++18.1.3	Success	7,436
Mar 17, 2026 15:55	shartgepetto	CPPclang++18.1.3	Success	7,271
Mar 17, 2026 15:55	shartgepetto	CPPclang++18.1.3	Success	7,271
Mar 17, 2026 15:55	shartgepetto	CPPclang++18.1.3	Success	8,680
Mar 17, 2026 15:36	shartgepetto	CPPclang++18.1.3	Success	7,407
Mar 17, 2026 15:36	shartgepetto	CPPclang++18.1.3	Success	7,360
Mar 17, 2026 15:36	shartgepetto	CPPclang++18.1.3	Success	7,561
Mar 17, 2026 15:20	shartgepetto	CPPclang++18.1.3	Success	9,603
Mar 17, 2026 15:20	wn	CPPclang++18.1.3	Success	4,283
Mar 17, 2026 15:20	shartgepetto	CPPclang++18.1.3	Success	10,784
Mar 17, 2026 15:20	shartgepetto	CPPclang++18.1.3	Success	11,750
Mar 17, 2026 15:16	wn	CPPclang++18.1.3	Success	4,261
Mar 17, 2026 15:06	caando	CPPg++13.3.0	Success	5,795
Mar 17, 2026 15:02	caando	CPPg++13.3.0	Success	5,100
Mar 17, 2026 15:02	wn	CPPclang++18.1.3	Success	4,281
Mar 17, 2026 15:00	Yuriy Lyfenko	CPPg++13.3.0	Success	8,650
Mar 17, 2026 15:00	wn	CPPclang++18.1.3	Success	4,285
Mar 17, 2026 15:00	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 17, 2026 15:00	Yuriy Lyfenko	CPPg++13.3.0	Success	8,663
Mar 17, 2026 14:59	wn	CPPg++13.3.0	Success	4,688
Mar 17, 2026 14:59	Yuriy Lyfenko	CPPg++13.3.0	Success	8,531
Mar 17, 2026 14:58	wn	CPPclang++18.1.3	Success	4,335
Mar 17, 2026 14:58	wn	CPPclang++18.1.3	Success	4,293
Mar 17, 2026 14:54	wn	CPPclang++18.1.3	Error
Mar 17, 2026 14:54	Yuriy Lyfenko	CPPg++13.3.0	Success	8,437
Mar 17, 2026 14:53	wn	CPPg++13.3.0	Success	4,414
Mar 17, 2026 14:50	Yuriy Lyfenko	CPPg++13.3.0	Success	8,406
Mar 17, 2026 14:49	shartgepetto	CPPclang++18.1.3	Success	68,811
Mar 17, 2026 14:46	Yuriy Lyfenko	CPPg++13.3.0	Success	9,136
Mar 17, 2026 14:35	Yuriy Lyfenko	CPPg++13.3.0	Success	9,815
Mar 17, 2026 14:35	caando	CPPg++13.3.0	Success	8,170
Mar 17, 2026 14:32	caando	CPPg++13.3.0	Success	8,580
Mar 17, 2026 14:29	caando	CPPg++13.3.0	Error
Mar 17, 2026 14:28	caando	CPPg++13.3.0	Success	5,060
Mar 17, 2026 14:27	shartgepetto	CPPclang++18.1.3	Success	7,784
Mar 17, 2026 14:27	shartgepetto	CPPclang++18.1.3	Success	7,748
Mar 17, 2026 14:27	shartgepetto	CPPclang++18.1.3	Success	7,768
Mar 17, 2026 14:26	caando	CPPg++13.3.0	Success	6,088
Mar 17, 2026 14:25	caando	CPPg++13.3.0	Success	6,015
Mar 17, 2026 14:23	caando	CPPg++13.3.0	Success	5,163
Mar 17, 2026 14:18	caando	CPPg++13.3.0	Success	5,124
Mar 17, 2026 14:16	caando	CPPg++13.3.0	Success	5,242
Mar 17, 2026 14:14	caando	CPPg++13.3.0	Success	5,239
Mar 17, 2026 13:06	shartgepetto	CPPclang++18.1.3	Success	7,388
Mar 17, 2026 13:06	shartgepetto	CPPclang++18.1.3	Success	7,309
Mar 17, 2026 13:06	shartgepetto	CPPclang++18.1.3	Success	7,263+3.22 RP
Mar 17, 2026 12:06	shartgepetto	CPPclang++18.1.3	Success	7,280+1.88 RP
Mar 17, 2026 12:06	shartgepetto	CPPclang++18.1.3	Success	7,317
Mar 17, 2026 12:05	shartgepetto	CPPclang++18.1.3	Success	7,290+84.24 RP
Mar 17, 2026 11:19	limanjun99	CPPg++13.3.0	Success	5,918
Mar 17, 2026 10:53	limanjun99	CPPg++13.3.0	Success	5,909+34.78 RP
Mar 17, 2026 10:50	limanjun99	CPPg++13.3.0	Success	6,033+25.16 RP
Mar 17, 2026 10:45	limanjun99	CPPg++13.3.0	Success	6,126+50.36 RP
Mar 17, 2026 10:31	limanjun99	CPPg++13.3.0	Error
Mar 17, 2026 10:30	limanjun99	CPPg++13.3.0	Success	6,464
Mar 17, 2026 10:16	wn	CPPg++13.3.0	Success	4,410
Mar 17, 2026 10:16	wn	CPPclang++18.1.3	Success	4,283
Mar 17, 2026 10:12	wn	CPPclang++18.1.3	Success	4,315
Mar 17, 2026 10:11	limanjun99	CPPg++13.3.0	Success	6,321+4.99 RP
Mar 17, 2026 10:04	Joel Chong	CPPg++13.3.0	Success	49,868+1.03 RP
Mar 17, 2026 10:01	limanjun99	CPPg++13.3.0	Error
Mar 17, 2026 09:58	limanjun99	CPPg++13.3.0	Success	6,341+49.39 RP
Mar 17, 2026 09:54	Joel Chong	CPPg++13.3.0	Success	50,219
Mar 17, 2026 09:53	Joel Chong	CPPg++13.3.0	Success	50,149
Mar 17, 2026 09:52	limanjun99	CPPg++13.3.0	Success	6,546+2.56 RP
Mar 17, 2026 09:52	Joel Chong	CPPg++13.3.0	Success	50,126+0.24 RP
Mar 17, 2026 09:51	Joel Chong	CPPg++13.3.0	Success	50,187+33.82 RP
Mar 17, 2026 09:50	limanjun99	CPPg++13.3.0	Success	7,072
Mar 17, 2026 09:46	limanjun99	CPPg++13.3.0	Success	6,557+22.23 RP
Mar 17, 2026 09:46	limanjun99	CPPg++13.3.0	Success	6,654+307.68 RP
Mar 17, 2026 09:36	limanjun99	CPPg++13.3.0	Success	8,367+141.32 RP
Mar 17, 2026 09:28	limanjun99	CPPg++13.3.0	Success	17,470
Mar 17, 2026 09:24	limanjun99	CPPg++13.3.0	Success	17,341
Mar 17, 2026 08:45	limanjun99	CPPg++13.3.0	Success	9,489+111.26 RP

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