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
Feb 23, 2026 21:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,617
Feb 23, 2026 21:07	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 21:03	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:54	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:53	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:50	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:47	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:46	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:45	wn	CPPclang++18.1.3	Success	4,397
Feb 23, 2026 20:45	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:42	wn	CPPclang++18.1.3	Success	4,438
Feb 23, 2026 20:40	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:36	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:34	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:33	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:31	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 19:52	wn	CPPclang++18.1.3	Success	4,455
Feb 23, 2026 19:49	wn	CPPclang++18.1.3	Success	4,441
Feb 23, 2026 19:48	wn	CPPclang++18.1.3	Success	5,450
Feb 23, 2026 19:47	satoru.net	CPPg++13.3.0	Success	33,482+4.75 RP
Feb 23, 2026 19:47	wn	CPPclang++18.1.3	Success	4,880
Feb 23, 2026 19:44	wn	CPPclang++18.1.3	Error
Feb 23, 2026 19:43	wn	CPPclang++18.1.3	Success	5,040
Feb 23, 2026 19:41	wn	CPPclang++18.1.3	Error
Feb 23, 2026 19:40	wn	CPPclang++18.1.3	Success	5,072
Feb 23, 2026 19:33	Kacper Grzybowski	CPPg++13.3.0	Success	64,674
Feb 23, 2026 19:24	wn	CPPclang++18.1.3	Success	4,387
Feb 23, 2026 19:24	Kacper Grzybowski	CPPg++13.3.0	Success	64,340+136.56 RP
Feb 23, 2026 19:23	wn	CPPclang++18.1.3	Success	5,378
Feb 23, 2026 19:23	wn	CPPclang++18.1.3	Success	5,664
Feb 23, 2026 18:59	Kacper Grzybowski	CPPg++13.3.0	Success	530,041+18.87 RP
Feb 23, 2026 18:39	wn	CPPclang++18.1.3	Success	4,419
Feb 23, 2026 18:28	wn	CPPclang++18.1.3	Success	7,136
Feb 23, 2026 18:04	wn	CPPclang++18.1.3	Success	4,732
Feb 23, 2026 18:04	wn	CPPclang++18.1.3	Success	4,639
Feb 23, 2026 18:03	wn	CPPclang++18.1.3	Success	4,599
Feb 23, 2026 18:02	wn	CPPclang++18.1.3	Success	4,582
Feb 23, 2026 18:01	wn	CPPclang++18.1.3	Success	4,591
Feb 23, 2026 18:01	wn	CPPclang++18.1.3	Success	4,631
Feb 23, 2026 18:01	wn	CPPclang++18.1.3	Success	4,595
Feb 23, 2026 18:01	wn	CPPclang++18.1.3	Success	4,406
Feb 23, 2026 18:01	wn	CPPclang++18.1.3	Success	4,684
Feb 23, 2026 18:00	wn	CPPclang++18.1.3	Success	4,570
Feb 23, 2026 18:00	wn	CPPclang++18.1.3	Success	4,558
Feb 23, 2026 18:00	wn	CPPclang++18.1.3	Success	4,440
Feb 23, 2026 18:00	wn	CPPclang++18.1.3	Success	4,607
Feb 23, 2026 17:59	wn	CPPclang++18.1.3	Success	4,437
Feb 23, 2026 17:59	wn	CPPclang++18.1.3	Success	4,386
Feb 23, 2026 17:58	wn	CPPclang++18.1.3	Success	4,366+11.48 RP
Feb 23, 2026 17:37	satoru.net	CPPg++13.3.0	Success	34,023+10.34 RP
Feb 23, 2026 17:24	satoru.net	CPPg++13.3.0	Success	35,461
Feb 23, 2026 17:22	satoru.net	CPPg++13.3.0	Success	35,832
Feb 23, 2026 17:17	satoru.net	CPPg++13.3.0	Success	36,103
Feb 23, 2026 17:11	satoru.net	CPPg++13.3.0	Success	35,264
Feb 23, 2026 17:06	satoru.net	CPPg++13.3.0	Success	66,912
Feb 23, 2026 17:03	satoru.net	CPPg++13.3.0	Success	36,583
Feb 23, 2026 17:01	satoru.net	CPPg++13.3.0	Success	36,302
Feb 23, 2026 16:39	satoru.net	CPPg++13.3.0	Success	35,264+22.26 RP
Feb 23, 2026 16:37	satoru.net	CPPg++13.3.0	Error
Feb 23, 2026 16:36	satoru.net	CPPg++13.3.0	Success	41,221
Feb 23, 2026 16:35	satoru.net	CPPg++13.3.0	Error
Feb 23, 2026 16:28	satoru.net	CPPg++13.3.0	Success	38,295
Feb 23, 2026 16:23	satoru.net	CPPg++13.3.0	Success	38,302
Feb 23, 2026 16:22	wn	CPPclang++18.1.3	Success	5,417
Feb 23, 2026 16:21	wn	CPPclang++18.1.3	Success	5,377
Feb 23, 2026 16:18	wn	CPPclang++18.1.3	Success	5,007
Feb 23, 2026 16:11	wn	CPPclang++18.1.3	Success	4,388+9.31 RP
Feb 23, 2026 16:09	satoru.net	CPPg++13.3.0	Success	40,135
Feb 23, 2026 16:04	MathSO	GOgo1.26.0	Success	263,770
Feb 23, 2026 16:01	satoru.net	CPPg++13.3.0	Success	38,268+15.69 RP
Feb 23, 2026 15:58	MathSO	GOgo1.26.0	Error
Feb 23, 2026 15:57	MathSO	GOgo1.26.0	Error
Feb 23, 2026 15:22	satoru.net	CPPg++13.3.0	Success	40,712+36.37 RP
Feb 23, 2026 14:37	satoru.net	CPPg++13.3.0	Success	47,789+37.66 RP
Feb 23, 2026 14:19	satoru.net	CPPg++13.3.0	Success	58,278+22.86 RP
Feb 23, 2026 14:03	satoru.net	CPPg++13.3.0	Success	67,660
Feb 23, 2026 13:53	satoru.net	CPPg++13.3.0	Success	67,237+9.71 RP
Feb 23, 2026 13:51	satoru.net	CPPg++13.3.0	Success	71,935+29.24 RP
Feb 23, 2026 13:51	satoru.net	CPPg++13.3.0	Error
Feb 23, 2026 13:45	satoru.net	CPPg++13.3.0	Success	91,095+109.78 RP
Feb 23, 2026 13:43	satoru.net	CPPg++13.3.0	Error
Feb 23, 2026 13:42	satoru.net	CPPg++13.3.0	Error
Feb 23, 2026 12:14	CheckHarry	CPPg++13.3.0	Error
Feb 23, 2026 11:39	CheckHarry	CPPg++13.3.0	Success	14,590+190.69 RP
Feb 22, 2026 23:37	wn	CPPclang++18.1.3	Error
Feb 22, 2026 23:22	wn	CPPclang++18.1.3	Success	7,990
Feb 22, 2026 23:17	wn	CPPclang++18.1.3	Success	4,759
Feb 22, 2026 23:16	wn	CPPclang++18.1.3	Error
Feb 22, 2026 23:14	wn	CPPclang++18.1.3	Error
Feb 22, 2026 23:14	wn	CPPclang++18.1.3	Success	5,057
Feb 22, 2026 23:13	wn	CPPclang++18.1.3	Success	4,678
Feb 22, 2026 23:10	wn	CPPclang++18.1.3	Success	4,406+1.54 RP
Feb 22, 2026 23:10	wn	CPPclang++18.1.3	Success	4,524
Feb 22, 2026 23:09	wn	CPPclang++18.1.3	Success	4,607
Feb 22, 2026 23:08	wn	CPPclang++18.1.3	Success	4,409+5.64 RP
Feb 22, 2026 23:08	wn	CPPclang++18.1.3	Success	4,556
Feb 22, 2026 23:08	wn	CPPclang++18.1.3	Success	4,558
Feb 22, 2026 23:07	wn	CPPclang++18.1.3	Success	4,589
Feb 22, 2026 23:07	wn	CPPclang++18.1.3	Success	4,608
Feb 22, 2026 22:57	wn	CPPclang++18.1.3	Success	4,436

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