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
Jan 7, 2026 20:37	Pavel Skripkin	RUSTrust-1.77.2	Error
Jan 7, 2026 20:34	Dmitry Yudakov	CSHARP9.0.11	Success	76,016
Jan 7, 2026 13:23	Petsku01	RUSTrust-1.92.0	Success	74,585
Jan 7, 2026 13:19	Pavel Skripkin	RUSTrust-1.77.2	Success	80,988
Jan 7, 2026 13:12	Pavel Skripkin	RUSTrust-1.77.2	Success	80,749
Jan 7, 2026 13:11	Pavel Skripkin	RUSTrust-1.77.2	Success	81,994
Jan 7, 2026 13:07	Pavel Skripkin	RUSTrust-1.77.2	Success	80,200+2.53 RP
Jan 7, 2026 12:51	Petsku01	RUSTrust-1.92.0	Error
Jan 7, 2026 12:27	Petsku01	RUSTrust-1.92.0	Error
Jan 7, 2026 12:19	Shubham Kr. Verma	CPPg++13.3.0	Success	75,245
Jan 7, 2026 12:18	Shubham Kr. Verma	CPPg++13.3.0	Success	73,649
Jan 7, 2026 12:16	Shubham Kr. Verma	CPPg++13.3.0	Success	73,605+131.02 RP
Jan 7, 2026 12:15	Shubham Kr. Verma	CPPg++13.3.0	Error
Jan 7, 2026 12:04	Pavel Skripkin	RUSTrust-1.77.2	Success	81,974
Jan 7, 2026 12:01	Shubham Kr. Verma	CPPg++13.3.0	Success	2,066,583+4.84 RP
Jan 7, 2026 11:43	Petsku01	RUSTrust-1.92.0	Success	67,354
Jan 7, 2026 11:35	Petsku01	RUSTrust-1.92.0	Success	81,146
Jan 7, 2026 10:57	Petsku01	CPPg++13.3.0	Error
Jan 7, 2026 10:54	Petsku01	CPPg++13.3.0	Error
Jan 7, 2026 10:49	Petsku01	CPPg++13.3.0	Success	45,452+53.80 RP
Jan 7, 2026 10:38	Petsku01	CPPg++13.3.0	Error
Jan 7, 2026 10:24	Petsku01	CPPg++13.3.0	Error
Jan 7, 2026 10:20	Petsku01	CPPg++13.3.0	Error
Jan 7, 2026 10:11	Petsku01	CPPclang++18.1.3	Success	69,664
Jan 7, 2026 10:09	Petsku01	CPPg++13.3.0	Success	63,657
Jan 7, 2026 10:08	Petsku01	CPPg++13.3.0	Success	63,685
Jan 7, 2026 09:46	Petsku01	CPPg++13.3.0	Success	2,043,126
Jan 7, 2026 09:39	Petsku01	CPPg++13.3.0	Success	68,671
Jan 7, 2026 09:38	Petsku01	CPPclang++18.1.3	Success	62,598
Jan 7, 2026 09:29	Pavel Skripkin	RUSTrust-1.77.2	Success	81,860+0.42 RP
Jan 7, 2026 09:28	Pavel Skripkin	RUSTrust-1.77.2	Success	103,559
Jan 7, 2026 09:26	Pavel Skripkin	RUSTrust-1.77.2	Success	103,879
Jan 7, 2026 09:23	Petsku01	CPPg++13.3.0	Success	2,020,559
Jan 7, 2026 08:55	Petsku01	CPPg++13.3.0	Success	72,365
Jan 7, 2026 08:39	Petsku01	CPPg++13.3.0	Success	60,164+9.18 RP
Jan 7, 2026 08:34	Petsku01	CPPg++13.3.0	Success	63,682+157.03 RP
Jan 7, 2026 04:07	Josu San Martin	GOgo1.25.5	Success	6,561+1'041.18 RP
Jan 6, 2026 20:10	Pavel Skripkin	RUSTrust-1.77.2	Success	82,145+121.74 RP
Jan 6, 2026 06:25	Krrish Raj	CPPg++13.3.0	Error
Jan 6, 2026 06:15	Krrish Raj	CPPg++13.3.0	Success	2,066,533+4.84 RP
Jan 5, 2026 21:44	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:40	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:40	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:39	lipapipa	CPPg++13.3.0	Success	64,159
Jan 5, 2026 21:37	lipapipa	CPPg++13.3.0	Success	109,099
Jan 5, 2026 21:34	lipapipa	CPPg++13.3.0	Success	55,073
Jan 5, 2026 21:33	lipapipa	CPPg++13.3.0	Success	55,257
Jan 5, 2026 21:32	lipapipa	CPPg++13.3.0	Success	55,463
Jan 5, 2026 21:27	lipapipa	CPPg++13.3.0	Success	57,261
Jan 5, 2026 21:25	lipapipa	CPPg++13.3.0	Success	54,755+29.16 RP
Jan 5, 2026 21:21	lipapipa	CPPg++13.3.0	Success	65,160+1.33 RP
Jan 5, 2026 21:20	lipapipa	CPPg++13.3.0	Success	66,304
Jan 5, 2026 21:18	lipapipa	CPPg++13.3.0	Success	65,728+4.60 RP
Jan 5, 2026 21:16	lipapipa	CPPg++13.3.0	Success	69,805
Jan 5, 2026 21:14	lipapipa	CPPg++13.3.0	Success	67,775+1.01 RP
Jan 5, 2026 21:13	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:09	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:08	lipapipa	CPPg++13.3.0	Error
Jan 5, 2026 21:07	lipapipa	CPPg++13.3.0	Success	68,242+1.38 RP
Jan 5, 2026 21:05	lipapipa	CPPg++13.3.0	Success	75,495
Jan 5, 2026 20:56	lipapipa	CPPg++13.3.0	Success	71,431
Jan 5, 2026 20:52	lipapipa	CPPg++13.3.0	Success	68,921
Jan 5, 2026 20:49	lipapipa	CPPg++13.3.0	Success	68,889+0.03 RP
Jan 5, 2026 20:46	lipapipa	CPPg++13.3.0	Success	68,962
Jan 5, 2026 20:40	lipapipa	CPPg++13.3.0	Success	68,905+0.76 RP
Jan 5, 2026 20:37	lipapipa	CPPg++13.3.0	Success	69,268+1.24 RP
Jan 5, 2026 20:36	lipapipa	CPPg++13.3.0	Success	69,867+10.21 RP
Jan 5, 2026 20:30	lipapipa	CPPg++13.3.0	Success	76,966
Jan 5, 2026 20:28	lipapipa	CPPg++13.3.0	Success	77,714
Jan 5, 2026 20:25	lipapipa	CPPg++13.3.0	Success	75,232+132.92 RP
Jan 5, 2026 16:34	Josu San Martin	CPPg++13.3.0	Success	28,861
Jan 5, 2026 06:04	Josu San Martin	CPPg++13.3.0	Success	39,177
Jan 5, 2026 05:25	Josu San Martin	CPPg++13.3.0	Success	7,230
Jan 5, 2026 04:16	Josu San Martin	CPPg++13.3.0	Success	7,325
Jan 5, 2026 02:45	Josu San Martin	CPPg++13.3.0	Success	56,725
Jan 5, 2026 02:10	Josu San Martin	CPPg++13.3.0	Error
Jan 4, 2026 17:53	Josu San Martin	CPPg++13.3.0	Success	6,841
Jan 4, 2026 06:18	Josu San Martin	CPPg++13.3.0	Success	10,296
Jan 4, 2026 05:45	Josu San Martin	CPPg++13.3.0	Success	9,536
Jan 4, 2026 04:35	Josu San Martin	CPPg++13.3.0	Success	6,000
Jan 4, 2026 04:30	Josu San Martin	CPPg++13.3.0	Error
Jan 4, 2026 04:28	Josu San Martin	CPPg++13.3.0	Success	6,005
Jan 3, 2026 16:56	Carlos MG	CPPg++13.3.0	Success	60,929+31.01 RP
Jan 3, 2026 16:50	Carlos MG	GOgo1.25.5	Success	92,258
Jan 3, 2026 16:47	Carlos MG	GOgo1.25.5	Success	105,316
Jan 3, 2026 16:43	Carlos MG	GOgo1.25.5	Success	75,731
Jan 3, 2026 16:37	Carlos MG	GOgo1.25.5	Success	80,669
Jan 3, 2026 16:34	Carlos MG	GOgo1.25.5	Success	80,688
Jan 3, 2026 16:30	Carlos MG	GOgo1.25.5	Success	80,796
Jan 3, 2026 16:25	Carlos MG	GOgo1.25.5	Success	93,595
Jan 3, 2026 16:22	Carlos MG	RUSTrust-1.92.0	Success	75,424
Jan 3, 2026 16:19	Carlos MG	RUSTrust-1.92.0	Success	75,123+3.94 RP
Jan 3, 2026 16:13	Carlos MG	RUSTrust-1.92.0	Success	368,966
Jan 3, 2026 16:12	Carlos MG	GOgo1.25.5	Success	77,414+30.55 RP
Jan 3, 2026 15:54	Carlos MG	GOgo1.25.5	Success	101,398+62.07 RP
Jan 3, 2026 15:43	Carlos MG	GOgo1.25.5	Success	273,579+36.55 RP
Jan 3, 2026 07:08	Keefe	CPPg++13.3.0	Error
Jan 3, 2026 06:56	Keefe	CPPg++13.3.0	Error
Jan 3, 2026 06:51	Pavitra Golchha	RUSTrust-1.92.0	Success	78,725+3.87 RP
Jan 3, 2026 06:48	Pavitra Golchha	RUSTrust-1.92.0	Success	133,150

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