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
Feb 20, 2026 18:09	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 17:00	Daniel Mastalerz	CPPclang++18.1.3	Success	5,853
Feb 20, 2026 16:53	Daniel Mastalerz	CPPclang++18.1.3	Success	5,773
Feb 20, 2026 16:51	Daniel Mastalerz	CPPclang++18.1.3	Success	5,777
Feb 20, 2026 16:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,883
Feb 20, 2026 16:43	Daniel Mastalerz	CPPclang++18.1.3	Success	5,853
Feb 20, 2026 16:38	Daniel Mastalerz	CPPclang++18.1.3	Success	5,742+2.42 RP
Feb 20, 2026 16:35	Daniel Mastalerz	CPPclang++18.1.3	Success	5,833
Feb 20, 2026 16:32	Daniel Mastalerz	CPPclang++18.1.3	Success	5,817
Feb 20, 2026 16:30	Daniel Mastalerz	CPPclang++18.1.3	Success	5,832
Feb 20, 2026 16:26	wn	CPPclang++18.1.3	Success	5,178
Feb 20, 2026 16:26	Mikołaj Uzarski	CPPg++13.3.0	Success	5,853
Feb 20, 2026 16:26	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 16:25	Daniel Mastalerz	CPPclang++18.1.3	Success	5,851
Feb 20, 2026 16:22	Daniel Mastalerz	CPPclang++18.1.3	Success	5,842
Feb 20, 2026 16:22	Daniel Mastalerz	CPPg++13.3.0	Success	7,233
Feb 20, 2026 16:22	wn	CPPclang++18.1.3	Error
Feb 20, 2026 16:22	wn	CPPclang++18.1.3	Error
Feb 20, 2026 16:20	Daniel Mastalerz	CPPg++13.3.0	Success	6,662
Feb 20, 2026 16:20	Daniel Mastalerz	CPPclang++18.1.3	Success	5,830
Feb 20, 2026 16:20	wn	CPPclang++18.1.3	Success	5,202
Feb 20, 2026 16:20	wn	CPPclang++18.1.3	Success	5,213
Feb 20, 2026 16:13	wn	CPPclang++18.1.3	Error
Feb 20, 2026 16:12	wn	CPPclang++18.1.3	Success	5,779
Feb 20, 2026 16:12	wn	CPPclang++18.1.3	Success	5,040
Feb 20, 2026 16:12	wn	CPPclang++18.1.3	Success	5,040
Feb 20, 2026 16:10	wn	CPPclang++18.1.3	Success	5,159
Feb 20, 2026 16:10	wn	CPPclang++18.1.3	Success	5,143
Feb 20, 2026 16:10	wn	CPPclang++18.1.3	Success	5,071
Feb 20, 2026 16:07	wn	CPPclang++18.1.3	Success	5,039+0.39 RP
Feb 20, 2026 16:03	wn	CPPclang++18.1.3	Success	5,167
Feb 20, 2026 16:01	wn	CPPclang++18.1.3	Success	6,063
Feb 20, 2026 15:58	wn	CPPclang++18.1.3	Success	6,122
Feb 20, 2026 15:54	wn	CPPclang++18.1.3	Success	6,156
Feb 20, 2026 15:53	wn	CPPclang++18.1.3	Success	6,006
Feb 20, 2026 15:52	wn	CPPclang++18.1.3	Error
Feb 20, 2026 15:51	wn	CPPclang++18.1.3	Error
Feb 20, 2026 15:49	wn	CPPclang++18.1.3	Success	6,009
Feb 20, 2026 15:43	wn	CPPclang++18.1.3	Success	5,040+0.39 RP
Feb 20, 2026 15:43	wn	CPPclang++18.1.3	Success	5,062
Feb 20, 2026 15:42	wn	CPPclang++18.1.3	Success	5,041
Feb 20, 2026 15:41	wn	CPPclang++18.1.3	Success	5,063
Feb 20, 2026 15:36	wn	CPPclang++18.1.3	Success	5,452
Feb 20, 2026 14:56	wn	CPPclang++18.1.3	Success	5,136
Feb 20, 2026 14:07	wn	CPPclang++18.1.3	Success	5,196
Feb 20, 2026 14:07	wn	CPPclang++18.1.3	Success	5,041+8.62 RP
Feb 20, 2026 14:07	wn	CPPclang++18.1.3	Success	5,217
Feb 20, 2026 14:04	wn	CPPclang++18.1.3	Success	5,176
Feb 20, 2026 14:04	wn	CPPclang++18.1.3	Success	5,186
Feb 20, 2026 14:03	wn	CPPclang++18.1.3	Success	5,195
Feb 20, 2026 14:03	wn	CPPclang++18.1.3	Success	5,217
Feb 20, 2026 14:02	wn	CPPclang++18.1.3	Success	5,164
Feb 20, 2026 14:02	wn	CPPclang++18.1.3	Success	5,063+3.50 RP
Feb 20, 2026 14:00	wn	CPPclang++18.1.3	Success	5,072+0.39 RP
Feb 20, 2026 13:58	wn	CPPclang++18.1.3	Success	5,641
Feb 20, 2026 13:45	CheckHarry	CPPg++13.3.0	Success	20,214+28.59 RP
Feb 20, 2026 13:37	CheckHarry	CPPg++13.3.0	Success	21,454+31.50 RP
Feb 20, 2026 13:17	CheckHarry	CPPg++13.3.0	Success	51,609
Feb 20, 2026 13:13	CheckHarry	CPPg++13.3.0	Success	23,009+44.49 RP
Feb 20, 2026 13:12	CheckHarry	CPPg++13.3.0	Error
Feb 20, 2026 13:10	CheckHarry	CPPg++13.3.0	Success	25,633+100.06 RP
Feb 20, 2026 13:03	CheckHarry	CPPg++13.3.0	Success	62,015
Feb 20, 2026 12:57	CheckHarry	CPPg++13.3.0	Success	66,978
Feb 20, 2026 12:56	CheckHarry	CPPg++13.3.0	Error
Feb 20, 2026 12:56	CheckHarry	CPPg++13.3.0	Error
Feb 20, 2026 12:47	CheckHarry	CPPg++13.3.0	Success	34,475+17.76 RP
Feb 20, 2026 12:46	CheckHarry	CPPg++13.3.0	Success	57,801
Feb 20, 2026 12:38	CheckHarry	CPPclang++18.1.3	Success	57,044
Feb 20, 2026 12:26	CheckHarry	CPPg++13.3.0	Success	49,030
Feb 20, 2026 12:26	CheckHarry	CPPg++13.3.0	Error
Feb 20, 2026 02:23	Serhii Sakhno	CPPg++13.3.0	Success	72,954
Feb 20, 2026 02:22	Serhii Sakhno	CPPg++13.3.0	Success	73,074
Feb 20, 2026 02:01	Serhii Sakhno	CPPg++13.3.0	Success	73,027
Feb 20, 2026 02:01	Serhii Sakhno	CPPg++13.3.0	Success	72,871+0.39 RP
Feb 20, 2026 01:34	Serhii Sakhno	CPPg++13.3.0	Success	73,081+0.51 RP
Feb 20, 2026 01:12	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,598
Feb 20, 2026 01:08	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,616
Feb 20, 2026 01:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,564
Feb 20, 2026 01:05	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,728
Feb 20, 2026 01:01	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,608
Feb 20, 2026 00:59	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,521
Feb 20, 2026 00:54	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,613
Feb 20, 2026 00:51	Serhii Sakhno	CPPg++13.3.0	Success	73,360
Feb 20, 2026 00:51	Serhii Sakhno	CPPg++13.3.0	Success	73,776
Feb 20, 2026 00:46	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,530
Feb 20, 2026 00:41	Serhii Sakhno	CPPg++13.3.0	Success	73,357+11.09 RP
Feb 20, 2026 00:41	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,514
Feb 20, 2026 00:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,530
Feb 20, 2026 00:30	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,524
Feb 19, 2026 23:56	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,501+87.15 RP
Feb 19, 2026 23:50	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 23:49	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 23:45	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,831
Feb 19, 2026 23:44	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 23:42	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,115
Feb 19, 2026 23:42	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 19, 2026 23:38	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,426
Feb 19, 2026 23:38	Daniel Mastalerz	CPPclang++18.1.3	Success	5,750+2.42 RP
Feb 19, 2026 23:36	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 19, 2026 23:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,823

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