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
Aug 16, 2026 18:56	marko1597	CPPg++12.4.0	Success	5,180
Aug 16, 2026 18:56	marko1597	CPPg++14.2.0	Success	5,150
Aug 16, 2026 18:56	marko1597	CPPg++13.3.0	Success	5,147
Aug 16, 2026 18:47	marko1597	CPPg++13.3.0	Error
Aug 16, 2026 18:44	marko1597	CPPg++12.4.0	Success	4,596
Aug 16, 2026 18:44	marko1597	CPPg++13.3.0	Success	5,157
Aug 16, 2026 18:44	marko1597	CPPg++13.3.0	Success	4,651
Aug 16, 2026 18:41	marko1597	CPPg++13.3.0	Success	4,602
Aug 16, 2026 18:41	marko1597	CPPg++13.3.0	Success	4,873
Aug 16, 2026 18:41	marko1597	CPPg++13.3.0	Success	4,780
Aug 16, 2026 18:36	marko1597	CPPg++13.3.0	Success	4,584+2.85 RP
Aug 16, 2026 18:36	marko1597	CPPg++14.2.0	Success	4,590+22.55 RP
Aug 16, 2026 18:25	marko1597	CPPclang++20.1.2	Error
Aug 16, 2026 18:12	marko1597	CPPg++14.2.0	Success	4,638+150.08 RP
Aug 16, 2026 18:12	marko1597	CPPclang++16.0.6	Success	5,877
Aug 16, 2026 18:12	marko1597	CPPclang++17.0.6	Success	5,354
Aug 16, 2026 18:12	marko1597	CPPclang++20.1.2	Success	5,142
Aug 16, 2026 17:54	marko1597	CPPclang++20.1.2	Error
Aug 16, 2026 17:46	marko1597	CPPclang++20.1.2	Success	6,360
Aug 16, 2026 17:46	marko1597	CPPclang++20.1.2	Success	5,260
Aug 16, 2026 17:46	marko1597	CPPclang++20.1.2	Success	6,525
Aug 16, 2026 15:32	marko1597	CPPclang++20.1.2	Success	5,064
Aug 16, 2026 15:32	marko1597	CPPclang++20.1.2	Success	5,071
Aug 16, 2026 15:32	marko1597	CPPclang++20.1.2	Error
Aug 16, 2026 15:23	marko1597	CPPg++14.2.0	Success	5,263
Aug 16, 2026 15:23	marko1597	CPPclang++20.1.2	Success	5,818
Aug 16, 2026 15:23	marko1597	CPPclang++20.1.2	Success	4,985+122.42 RP
Aug 16, 2026 13:20	marko1597	CPPclang++20.1.2	Success	5,402
Aug 16, 2026 13:20	marko1597	CPPclang++20.1.2	Success	5,418
Aug 16, 2026 13:20	marko1597	CPPclang++20.1.2	Success	5,495
Aug 16, 2026 13:20	marko1597	CPPclang++20.1.2	Success	5,425
Aug 16, 2026 13:19	marko1597	CPPclang++20.1.2	Success	5,417
Aug 16, 2026 13:19	marko1597	CPPclang++20.1.2	Success	5,421
Aug 16, 2026 13:17	marko1597	CPPclang++14.0.6	Success	6,896
Aug 16, 2026 13:17	marko1597	CPPclang++15.0.7	Success	5,414
Aug 16, 2026 13:17	marko1597	CPPclang++16.0.6	Success	5,450
Aug 16, 2026 13:17	marko1597	CPPclang++17.0.6	Success	5,601
Aug 16, 2026 13:16	marko1597	CPPclang++18.1.3	Success	5,399
Aug 16, 2026 13:16	marko1597	CPPclang++19.1.1	Success	5,317
Aug 16, 2026 13:16	marko1597	CPPg++10.5.0	Success	6,141
Aug 16, 2026 13:16	marko1597	CPPg++11.5.0	Success	6,575
Aug 16, 2026 13:16	marko1597	CPPg++12.4.0	Success	5,923
Aug 16, 2026 13:15	marko1597	CPPg++13.3.0	Success	5,889
Aug 16, 2026 13:15	marko1597	CPPg++14.2.0	Success	5,920
Aug 16, 2026 12:12	marko1597	CPPclang++20.1.2	Success	5,541
Aug 16, 2026 12:02	marko1597	CPPclang++20.1.2	Success	136,010
Aug 16, 2026 11:53	marko1597	CPPclang++20.1.2	Success	10,451
Aug 16, 2026 11:25	marko1597	CPPclang++20.1.2	Success	10,720
Aug 16, 2026 11:20	marko1597	CPPclang++20.1.2	Success	15,106
Aug 16, 2026 07:54	marko1597	CPPclang++20.1.2	Success	5,386
Aug 16, 2026 07:32	marko1597	CPPclang++20.1.2	Success	127,984
Aug 16, 2026 07:13	marko1597	CPPclang++20.1.2	Success	127,377
Aug 16, 2026 07:13	marko1597	CPPclang++20.1.2	Success	5,309+233.97 RP
Aug 16, 2026 00:06	marko1597	CPPclang++20.1.2	Success	135,853
Aug 15, 2026 23:45	marko1597	CPPclang++20.1.2	Success	6,437
Aug 15, 2026 23:14	marko1597	CPPclang++20.1.2	Success	6,062+30.71 RP
Aug 15, 2026 22:46	marko1597	CPPclang++20.1.2	Success	6,204
Aug 15, 2026 22:41	marko1597	CPPclang++20.1.2	Success	136,014
Aug 15, 2026 22:36	marko1597	CPPclang++20.1.2	Success	150,128
Aug 15, 2026 22:16	marko1597	CPPclang++20.1.2	Success	132,495
Aug 15, 2026 21:53	marko1597	CPPclang++20.1.2	Success	95,731
Aug 15, 2026 20:30	Tomislav Tunkovic	CPPclang++18.1.3	Success	4,369
Aug 15, 2026 20:28	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,297+12.39 RP
Aug 15, 2026 20:24	Tomislav Tunkovic	CPPclang++18.1.3	Success	4,365
Aug 15, 2026 20:01	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,320+119.91 RP
Aug 15, 2026 19:56	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,556+36.48 RP
Aug 15, 2026 18:58	Asmit Singh	CPPg++10.5.0	Success	89,001+112.36 RP
Aug 15, 2026 12:55	Tomislav Tunkovic	CPPclang++18.1.3	Success	4,633+0.47 RP
Aug 15, 2026 12:53	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,634+0.47 RP
Aug 15, 2026 12:46	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,635+44.67 RP
Aug 15, 2026 12:42	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,733+16.39 RP
Aug 15, 2026 12:35	Tomislav Tunkovic	CPPg++14.2.0	Success	5,076
Aug 15, 2026 12:31	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,770+27.76 RP
Aug 15, 2026 12:16	Tomislav Tunkovic	CPPclang++20.1.2	Success	4,834+91.61 RP
Aug 15, 2026 10:06	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,066
Aug 15, 2026 09:51	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,058+1.56 RP
Aug 15, 2026 09:39	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,062+175.97 RP
Aug 15, 2026 06:00	Tomislav Tunkovic	CPPg++14.2.0	Success	6,253
Aug 15, 2026 00:36	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,768
Aug 15, 2026 00:24	Tomislav Tunkovic	CPPclang++20.1.2	Success	5,557+444.70 RP
Aug 14, 2026 23:44	Tomislav Tunkovic	CPPclang++20.1.2	Success	7,381+800.66 RP
Aug 14, 2026 23:11	Tomislav Tunkovic	CPPg++14.2.0	Success	18,045+554.17 RP
Aug 14, 2026 19:47	Lan Hoang Dao	CPPclang++20.1.2	Error
Aug 14, 2026 19:44	marko1597	CPPclang++20.1.2	Success	86,576
Aug 14, 2026 19:07	marko1597	CPPclang++20.1.2	Success	108,695
Aug 14, 2026 19:00	Lan Hoang Dao	CPPclang++20.1.2	Error
Aug 14, 2026 18:53	marko1597	CPPclang++20.1.2	Error
Aug 14, 2026 18:46	marko1597	CPPclang++20.1.2	Success	114,987
Aug 14, 2026 18:45	Lan Hoang Dao	CPPclang++20.1.2	Error
Aug 14, 2026 18:20	marko1597	CPPclang++20.1.2	Success	6,243
Aug 14, 2026 18:07	marko1597	CPPclang++20.1.2	Success	115,655
Aug 14, 2026 17:53	marko1597	CPPclang++20.1.2	Success	155,076
Aug 14, 2026 17:49	marko1597	CPPclang++20.1.2	Success	6,380
Aug 14, 2026 17:45	marko1597	CPPclang++20.1.2	Success	6,184
Aug 14, 2026 17:42	marko1597	CPPclang++20.1.2	Success	6,177+7.05 RP
Aug 14, 2026 17:39	marko1597	CPPclang++20.1.2	Success	193,254
Aug 14, 2026 17:37	marko1597	CPPclang++20.1.2	Success	143,133
Aug 14, 2026 17:34	marko1597	CPPclang++20.1.2	Error
Aug 14, 2026 17:17	marko1597	CPPclang++20.1.2	Success	6,204+1.82 RP
Aug 14, 2026 17:11	marko1597	CPPclang++20.1.2	Success	183,576

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