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
Mar 10, 2026 16:57	Josu San Martin	CPPclang++18.1.3	Error
Mar 10, 2026 16:56	caando	CPPg++13.3.0	Success	5,577
Mar 10, 2026 16:53	caando	CPPg++13.3.0	Success	5,042
Mar 10, 2026 16:52	Daniel	RUSTrust-1.94.0	Success	109,161
Mar 10, 2026 16:50	Daniel	RUSTrust-1.93.1	Success	61,196
Mar 10, 2026 16:46	Sergey Serebryakov	CPPg++13.3.0	Success	9,274
Mar 10, 2026 16:45	caando	CPPg++13.3.0	Success	5,131
Mar 10, 2026 16:43	caando	CPPg++13.3.0	Success	5,043
Mar 10, 2026 16:39	caando	CPPg++13.3.0	Success	5,966
Mar 10, 2026 16:38	Daniel	RUSTrust-1.93.1	Success	49,503
Mar 10, 2026 16:38	caando	CPPg++13.3.0	Success	5,069
Mar 10, 2026 16:38	Josu San Martin	CPPclang++18.1.3	Success	5,349
Mar 10, 2026 16:35	Daniel	RUSTrust-1.93.1	Success	90,399
Mar 10, 2026 16:34	Josu San Martin	CPPclang++18.1.3	Success	5,138
Mar 10, 2026 16:32	Sergey Serebryakov	CPPg++13.3.0	Success	8,905
Mar 10, 2026 16:32	Daniel	RUSTrust-1.93.1	Success	61,854
Mar 10, 2026 16:31	Sergey Serebryakov	CPPg++13.3.0	Success	8,909
Mar 10, 2026 16:25	Daniel	RUSTrust-1.93.1	Success	58,778
Mar 10, 2026 16:24	Daniel	RUSTrust-1.93.1	Error
Mar 10, 2026 16:20	caando	CPPg++13.3.0	Success	5,008
Mar 10, 2026 16:14	caando	CPPg++13.3.0	Success	4,996+48.86 RP
Mar 10, 2026 16:13	Josu San Martin	CPPclang++18.1.3	Success	5,105+12.96 RP
Mar 10, 2026 16:11	Josu San Martin	CPPclang++18.1.3	Success	5,279
Mar 10, 2026 16:10	Josu San Martin	CPPclang++18.1.3	Success	11,116
Mar 10, 2026 16:10	Josu San Martin	CPPclang++18.1.3	Success	11,122
Mar 10, 2026 16:08	Josu San Martin	CPPclang++18.1.3	Success	11,249
Mar 10, 2026 15:52	caando	CPPg++13.3.0	Success	5,255
Mar 10, 2026 15:42	caando	CPPg++13.3.0	Success	5,127
Mar 10, 2026 15:40	caando	CPPg++13.3.0	Success	87,570
Mar 10, 2026 15:37	Jarno	RUSTrust-1.94.0	Success	41,174+30.49 RP
Mar 10, 2026 15:31	Sergey Serebryakov	CPPg++13.3.0	Success	8,284+115.68 RP
Mar 10, 2026 15:30	Jarno	RUSTrust-1.94.0	Success	52,143
Mar 10, 2026 15:25	Jarno	RUSTrust-1.94.0	Success	60,443
Mar 10, 2026 15:20	Jarno	RUSTrust-1.94.0	Success	48,027
Mar 10, 2026 15:19	Jarno	RUSTrust-1.94.0	Success	47,920
Mar 10, 2026 15:13	Jarno	RUSTrust-1.94.0	Success	56,514
Mar 10, 2026 15:13	Jarno	RUSTrust-1.94.0	Success	56,343
Mar 10, 2026 14:52	Jarno	RUSTrust-1.94.0	Success	47,084+33.51 RP
Mar 10, 2026 14:47	Jarno	RUSTrust-1.94.0	Success	55,905+153.28 RP
Mar 10, 2026 14:41	Jarno	RUSTrust-1.94.0	Success	390,641+25.60 RP
Mar 10, 2026 14:34	Sergey Serebryakov	CPPg++13.3.0	Success	9,162+78.60 RP
Mar 10, 2026 14:24	Keefe	CPPg++13.3.0	Success	34,567
Mar 10, 2026 13:59	Keefe	CPPg++13.3.0	Success	35,579
Mar 10, 2026 13:44	Sergey Serebryakov	CPPg++13.3.0	Success	9,877
Mar 10, 2026 13:42	Sergey Serebryakov	CPPg++13.3.0	Success	9,873+1'007.72 RP
Mar 10, 2026 05:33	olliecrow	RUSTrust-1.94.0	Success	389,057
Mar 10, 2026 05:14	olliecrow	RUSTrust-1.93.0	Success	365,540
Mar 10, 2026 04:20	olliecrow	CPPclang++18.1.3	Error	+1'478.57 RP
Mar 9, 2026 21:04	wn	CPPclang++18.1.3	Success	4,437
Mar 9, 2026 20:34	wn	CPPclang++18.1.3	Success	4,364
Mar 9, 2026 20:32	wn	CPPg++13.3.0	Success	4,837
Mar 9, 2026 20:32	wn	CPPg++13.3.0	Success	9,491
Mar 9, 2026 20:29	wn	CPPg++13.3.0	Success	5,043
Mar 9, 2026 20:29	wn	CPPg++13.3.0	Success	9,930
Mar 9, 2026 20:24	wn	CPPg++13.3.0	Error
Mar 9, 2026 20:24	wn	CPPg++13.3.0	Success	47,542
Mar 9, 2026 20:16	wn	CPPclang++18.1.3	Success	48,708
Mar 9, 2026 20:04	Pavel Samygin	CPPg++13.3.0	Error
Mar 9, 2026 16:44	wn	CPPclang++18.1.3	Success	4,357
Mar 9, 2026 16:36	wn	CPPclang++18.1.3	Success	4,401
Mar 9, 2026 16:14	wn	CPPclang++18.1.3	Success	4,402
Mar 9, 2026 15:57	wn	CPPclang++18.1.3	Success	5,433
Mar 9, 2026 10:32	Ilya Alimov	CPPclang++18.1.3	Error
Mar 9, 2026 10:26	Ilya Alimov	CPPclang++18.1.3	Error
Mar 9, 2026 05:14	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 05:00	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:52	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 04:43	olliecrow	CPPg++13.3.0	Success	6,519
Mar 9, 2026 04:30	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:44	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:35	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:23	olliecrow	CPPg++13.3.0	Error
Mar 9, 2026 03:05	olliecrow	CPPg++13.3.0	Success	5,947
Mar 9, 2026 02:50	olliecrow	CPPg++13.3.0	Success	5,398+65.55 RP
Mar 9, 2026 02:29	olliecrow	CPPg++13.3.0	Success	5,675
Mar 8, 2026 22:46	wn	CPPclang++18.1.3	Success	4,420
Mar 8, 2026 22:36	wn	CPPclang++18.1.3	Success	4,439
Mar 8, 2026 21:50	wn	CPPclang++18.1.3	Success	4,471
Mar 8, 2026 21:49	wn	CPPclang++18.1.3	Success	4,609
Mar 8, 2026 21:23	wn	CPPclang++18.1.3	Success	4,380
Mar 8, 2026 21:20	wn	CPPclang++18.1.3	Success	4,357
Mar 8, 2026 20:22	wn	CPPclang++18.1.3	Success	4,372
Mar 8, 2026 20:10	wn	CPPclang++18.1.3	Success	4,468
Mar 8, 2026 19:53	wn	CPPclang++18.1.3	Success	4,357
Mar 8, 2026 19:40	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:40	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:39	wn	CPPclang++18.1.3	Error
Mar 8, 2026 19:18	wn	CPPclang++18.1.3	Success	4,368
Mar 8, 2026 19:16	wn	CPPclang++18.1.3	Success	4,399
Mar 8, 2026 19:13	wn	CPPclang++18.1.3	Success	4,712
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,855
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,438
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,455
Mar 8, 2026 19:12	wn	CPPclang++18.1.3	Success	4,816
Mar 8, 2026 19:11	wn	CPPclang++18.1.3	Success	4,408
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,846
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,439
Mar 8, 2026 19:10	wn	CPPclang++18.1.3	Success	4,845
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,437
Mar 8, 2026 19:09	wn	CPPclang++18.1.3	Success	4,485

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