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
Nov 3, 2026 13:23	Andrew Epstein	CPPg++14.2.0	Success	178,746
Nov 3, 2026 13:11	Andrew Epstein	CPPg++14.2.0	Success	59,716
Nov 3, 2026 13:02	Andrew Epstein	CPPg++14.2.0	Success	56,294
Nov 3, 2026 12:54	Andrew Epstein	CPPg++14.2.0	Success	22,471
Nov 3, 2026 12:51	Andrew Epstein	CPPg++14.2.0	Success	3,443
Nov 3, 2026 12:46	Andrew Epstein	CPPg++14.2.0	Success	85,533
Nov 3, 2026 12:21	Andrew Epstein	CPPg++14.2.0	Success	111,309
Nov 3, 2026 12:03	Andrew Epstein	CPPg++14.2.0	Success	85,841
Nov 3, 2026 11:52	Andrew Epstein	CPPg++14.2.0	Success	36,970
Nov 3, 2026 11:45	Andrew Epstein	CPPg++14.2.0	Success	61,940
Nov 3, 2026 11:36	Andrew Epstein	CPPg++14.2.0	Success	63,116
Nov 3, 2026 11:21	Andrew Epstein	CPPg++14.2.0	Success	36,973
Nov 3, 2026 11:18	Andrew Epstein	CPPg++14.2.0	Success	16,251
Nov 3, 2026 11:18	Andrew Epstein	CPPg++14.2.0	Success	16,293
Nov 3, 2026 11:10	Andrew Epstein	CPPg++14.2.0	Success	104,651
Nov 3, 2026 10:57	Andrew Epstein	CPPg++14.2.0	Success	103,928
Nov 3, 2026 10:44	Andrew Epstein	CPPg++14.2.0	Success	101,844
Nov 3, 2026 10:26	Andrew Epstein	CPPg++14.2.0	Success	37,110
Nov 3, 2026 10:14	Andrew Epstein	CPPg++14.2.0	Success	33,941
Nov 3, 2026 09:47	Andrew Epstein	CPPg++14.2.0	Success	60,322
Nov 3, 2026 09:37	Andrew Epstein	CPPg++14.2.0	Success	37,381
Nov 3, 2026 09:25	Andrew Epstein	CPPg++14.2.0	Success	9,928
Nov 3, 2026 09:24	Andrew Epstein	CPPg++14.2.0	Success	9,929
Nov 3, 2026 09:19	Andrew Epstein	CPPg++14.2.0	Success	53,475
Nov 3, 2026 09:11	Andrew Epstein	CPPg++14.2.0	Success	98,722
Nov 3, 2026 09:03	Andrew Epstein	CPPg++14.2.0	Success	101,432
Nov 3, 2026 08:36	Andrew Epstein	CPPg++14.2.0	Success	3,451
Nov 3, 2026 08:33	Andrew Epstein	CPPg++14.2.0	Success	105,100
Nov 3, 2026 08:23	Andrew Epstein	CPPg++14.2.0	Success	73,040
Nov 3, 2026 08:05	Andrew Epstein	CPPg++14.2.0	Success	95,768
Nov 3, 2026 07:54	Andrew Epstein	CPPg++14.2.0	Success	107,726
Nov 3, 2026 07:46	Andrew Epstein	CPPg++14.2.0	Success	130,774
Nov 3, 2026 07:39	Andrew Epstein	CPPg++14.2.0	Success	13,120
Nov 3, 2026 07:32	Andrew Epstein	CPPg++14.2.0	Success	85,070
Nov 3, 2026 07:21	Andrew Epstein	CPPg++14.2.0	Success	3,476
Nov 3, 2026 07:19	Andrew Epstein	CPPg++14.2.0	Success	30,457
Nov 3, 2026 07:09	Andrew Epstein	CPPg++14.2.0	Success	10,163
Nov 3, 2026 07:02	Andrew Epstein	CPPg++14.2.0	Success	10,085
Nov 3, 2026 06:50	Andrew Epstein	CPPg++14.2.0	Success	33,801
Nov 3, 2026 06:45	Andrew Epstein	CPPg++14.2.0	Success	9,911
Nov 3, 2026 06:26	Andrew Epstein	CPPg++14.2.0	Success	68,396
Nov 3, 2026 06:17	Andrew Epstein	CPPg++14.2.0	Success	69,806
Nov 3, 2026 06:01	Andrew Epstein	CPPg++14.2.0	Success	72,731
Nov 3, 2026 05:46	Andrew Epstein	CPPg++14.2.0	Success	9,988
Nov 3, 2026 05:43	Andrew Epstein	CPPg++14.2.0	Success	33,965
Nov 3, 2026 05:38	Andrew Epstein	CPPg++14.2.0	Success	34,023
Nov 3, 2026 05:31	Andrew Epstein	CPPg++14.2.0	Success	3,506
Nov 3, 2026 05:29	Andrew Epstein	CPPg++14.2.0	Success	35,573
Nov 3, 2026 05:06	Andrew Epstein	CPPg++14.2.0	Success	52,235
Nov 3, 2026 04:59	Andrew Epstein	CPPg++14.2.0	Success	87,745
Nov 3, 2026 04:35	Andrew Epstein	CPPg++14.2.0	Success	58,526
Nov 3, 2026 04:24	Andrew Epstein	CPPg++14.2.0	Success	9,964
Nov 3, 2026 04:10	Andrew Epstein	CPPg++14.2.0	Success	3,502
Nov 3, 2026 04:02	Andrew Epstein	CPPg++14.2.0	Success	58,510
Nov 3, 2026 03:58	Andrew Epstein	CPPg++14.2.0	Success	88,884
Nov 3, 2026 03:51	Andrew Epstein	CPPg++14.2.0	Success	30,665
Nov 3, 2026 03:34	Andrew Epstein	CPPg++14.2.0	Success	36,354
Nov 3, 2026 03:22	Andrew Epstein	CPPg++14.2.0	Success	57,209
Nov 3, 2026 03:16	Andrew Epstein	CPPg++14.2.0	Success	43,675
Nov 3, 2026 02:19	Andrew Epstein	CPPg++14.2.0	Success	3,561
Nov 3, 2026 02:16	Andrew Epstein	CPPg++14.2.0	Success	34,430
Nov 3, 2026 02:09	Andrew Epstein	CPPg++14.2.0	Success	57,894
Nov 3, 2026 01:39	Andrew Epstein	CPPg++14.2.0	Success	56,543
Nov 3, 2026 01:29	Andrew Epstein	CPPg++14.2.0	Success	34,424
Nov 2, 2026 12:20	Keshav Bansal	RUSTrust-1.95.0	Success	105,762+94.55 RP
Nov 1, 2026 21:13	ambarish1729	CPPg++10.5.0	Success	6,856+560.18 RP
Nov 1, 2026 20:59	ambarish1729	CPPg++10.5.0	Success	11,131+254.81 RP
Nov 1, 2026 19:43	Dinu Goyal	CPPg++10.5.0	Success	14,228+519.04 RP
Nov 1, 2026 19:39	ambarish1729	CPPg++10.5.0	Success	15,538+472.25 RP
Nov 1, 2026 19:28	ambarish1729	CPPg++10.5.0	Success	58,366+171.33 RP
Nov 1, 2026 19:23	Dinu Goyal	CPPg++10.5.0	Error
Nov 1, 2026 19:20	Dinu Goyal	CPPg++10.5.0	Success	55,902
Nov 1, 2026 19:15	Dinu Goyal	CPPg++10.5.0	Error
Nov 1, 2026 19:11	Dinu Goyal	CPPg++10.5.0	Success	66,708
Nov 1, 2026 19:08	Dinu Goyal	CPPg++10.5.0	Success	54,406+4.09 RP
Nov 1, 2026 19:04	Dinu Goyal	CPPg++10.5.0	Success	55,643+2.25 RP
Nov 1, 2026 18:54	Dinu Goyal	CPPg++10.5.0	Success	92,356
Nov 1, 2026 18:48	Dinu Goyal	CPPg++10.5.0	Success	56,347+14.32 RP
Nov 1, 2026 07:53	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	5,772
Nov 1, 2026 07:10	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	6,543
Nov 1, 2026 06:36	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	6,538
Nov 1, 2026 06:32	timothygk	CPPclang++20.1.2	Success	10,086
Nov 1, 2026 06:23	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	5,752+944.31 RP
Nov 1, 2026 06:10	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	12,591+230.68 RP
Nov 1, 2026 05:43	timothygk	CPPclang++20.1.2	Success	10,587
Nov 1, 2026 04:14	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	17,745+194.89 RP
Nov 1, 2026 03:44	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	27,126+198.19 RP
Nov 1, 2026 01:59	Md Nafis Ul Haque Shifat	CPPg++10.5.0	Success	58,664+170.46 RP
Oct 31, 2026 11:42	timothygk	CPPclang++20.1.2	Error
Oct 31, 2026 11:34	timothygk	CPPclang++20.1.2	Success	9,823
Oct 31, 2026 11:33	Anirudha Saraf	CPPg++10.5.0	Success	391,757
Oct 31, 2026 11:29	Anirudha Saraf	CPPg++10.5.0	Success	2,046,384
Oct 31, 2026 11:23	timothygk	CPPclang++20.1.2	Success	10,927
Oct 31, 2026 11:21	Anirudha Saraf	CPPg++14.2.0	Success	19,570+254.13 RP
Oct 31, 2026 11:15	Anirudha Saraf	CPPg++14.2.0	Error	+108.96 RP
Oct 31, 2026 10:58	Anirudha Saraf	CPPg++10.5.0	Success	67,616+35.64 RP
Oct 31, 2026 10:47	Anirudha Saraf	CPPg++10.5.0	Success	89,087+0.28 RP
Oct 31, 2026 10:45	Anirudha Saraf	CPPg++10.5.0	Success	89,312+111.97 RP
Oct 30, 2026 16:04	Dinu Goyal	CPPg++10.5.0	Success	61,294+50.75 RP
Oct 30, 2026 15:55	Dinu Goyal	CPPg++10.5.0	Success	88,972+112.39 RP

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