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 11, 2026 13:46	Sergey Serebryakov	CPPg++13.3.0	Success	7,489+15.33 RP
Mar 11, 2026 13:02	Advait Iyer	CPPclang++18.1.3	Success	41,351+1.49 RP
Mar 11, 2026 13:01	Advait Iyer	CPPg++13.3.0	Success	45,973
Mar 11, 2026 12:41	Sergey Serebryakov	CPPg++13.3.0	Success	7,576+55.74 RP
Mar 10, 2026 23:02	Josu San Martin	CPPg++13.3.0	Success	5,612
Mar 10, 2026 22:24	Josu San Martin	RUSTrust-1.94.0	Success	5,434
Mar 10, 2026 21:58	wn	CPPclang++18.1.3	Success	57,088
Mar 10, 2026 21:54	wn	CPPclang++18.1.3	Success	52,977
Mar 10, 2026 21:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,364+12.43 RP
Mar 10, 2026 21:48	wn	CPPclang++18.1.3	Success	52,050
Mar 10, 2026 21:46	Daniel Mastalerz	CPPclang++18.1.3	Success	5,432
Mar 10, 2026 21:45	wn	CPPclang++18.1.3	Error
Mar 10, 2026 21:43	Daniel Mastalerz	CPPclang++18.1.3	Success	5,480
Mar 10, 2026 21:42	Daniel Mastalerz	CPPclang++18.1.3	Success	6,393
Mar 10, 2026 21:40	Daniel Mastalerz	CPPclang++18.1.3	Success	6,431
Mar 10, 2026 21:22	wn	CPPclang++18.1.3	Success	68,852
Mar 10, 2026 21:14	wn	CPPclang++18.1.3	Success	56,895
Mar 10, 2026 21:12	wn	CPPclang++18.1.3	Success	46,841
Mar 10, 2026 21:08	wn	CPPclang++18.1.3	Success	52,147
Mar 10, 2026 20:53	wn	CPPclang++18.1.3	Success	4,440
Mar 10, 2026 20:52	wn	CPPclang++18.1.3	Success	4,397
Mar 10, 2026 20:50	wn	CPPclang++18.1.3	Success	4,455
Mar 10, 2026 20:44	Sergey Serebryakov	CPPg++13.3.0	Error
Mar 10, 2026 20:36	wn	CPPclang++18.1.3	Error
Mar 10, 2026 20:33	wn	CPPclang++18.1.3	Success	50,733
Mar 10, 2026 20:24	wn	CPPclang++18.1.3	Error
Mar 10, 2026 20:23	wn	CPPclang++18.1.3	Error
Mar 10, 2026 19:59	Josu San Martin	CPPclang++18.1.3	Success	5,066
Mar 10, 2026 19:58	Josu San Martin	CPPclang++18.1.3	Success	5,319
Mar 10, 2026 19:57	Josu San Martin	CPPclang++18.1.3	Success	5,064+15.86 RP
Mar 10, 2026 19:51	wn	CPPclang++18.1.3	Success	4,375
Mar 10, 2026 19:38	wn	CPPg++13.3.0	Error
Mar 10, 2026 19:30	wn	CPPclang++18.1.3	Error
Mar 10, 2026 19:29	wn	CPPclang++18.1.3	Success	4,401
Mar 10, 2026 19:08	Sergey Serebryakov	CPPg++13.3.0	Success	34,363
Mar 10, 2026 19:07	Sergey Serebryakov	CPPg++13.3.0	Success	34,333
Mar 10, 2026 19:00	Sergey Serebryakov	CPPg++13.3.0	Success	8,123
Mar 10, 2026 18:59	Sergey Serebryakov	CPPg++13.3.0	Success	22,295
Mar 10, 2026 18:58	Sergey Serebryakov	CPPg++13.3.0	Success	7,953
Mar 10, 2026 18:58	Sergey Serebryakov	CPPg++13.3.0	Success	7,954
Mar 10, 2026 18:57	Sergey Serebryakov	CPPg++13.3.0	Success	7,910+7.47 RP
Mar 10, 2026 18:57	Sergey Serebryakov	CPPg++13.3.0	Success	11,837
Mar 10, 2026 18:53	Josu San Martin	CPPclang++18.1.3	Success	7,879
Mar 10, 2026 18:51	Josu San Martin	CPPclang++18.1.3	Success	7,882
Mar 10, 2026 18:34	Daniel	CPPclang++18.1.3	Success	48,376
Mar 10, 2026 18:34	Daniel	CPPg++13.3.0	Success	38,619
Mar 10, 2026 18:33	Daniel	CPPg++13.3.0	Success	46,110
Mar 10, 2026 18:30	Daniel	CPPg++13.3.0	Success	46,774
Mar 10, 2026 18:29	Daniel	CPPclang++18.1.3	Success	49,201
Mar 10, 2026 18:28	Daniel	CPPg++13.3.0	Success	46,760
Mar 10, 2026 18:28	Daniel	CPPg++13.3.0	Success	46,831
Mar 10, 2026 18:28	Josu San Martin	CPPclang++18.1.3	Success	9,617
Mar 10, 2026 18:27	Sergey Serebryakov	CPPg++13.3.0	Success	7,957+0.79 RP
Mar 10, 2026 18:23	Sergey Serebryakov	CPPg++13.3.0	Success	7,962+48.82 RP
Mar 10, 2026 18:23	Sergey Serebryakov	CPPg++13.3.0	Success	9,137
Mar 10, 2026 18:19	Josu San Martin	CPPclang++18.1.3	Success	7,243
Mar 10, 2026 18:14	Josu San Martin	CPPclang++18.1.3	Success	7,233
Mar 10, 2026 17:52	Josu San Martin	CPPg++13.3.0	Success	5,485
Mar 10, 2026 17:44	Sergey Serebryakov	CPPg++13.3.0	Success	8,925
Mar 10, 2026 17:40	Sergey Serebryakov	CPPg++13.3.0	Success	8,946
Mar 10, 2026 17:33	Josu San Martin	CPPclang++18.1.3	Success	5,220
Mar 10, 2026 17:28	Josu San Martin	CPPclang++18.1.3	Success	5,330
Mar 10, 2026 17:14	caando	CPPg++13.3.0	Success	5,088
Mar 10, 2026 17:10	caando	CPPg++13.3.0	Success	5,039
Mar 10, 2026 17:05	caando	CPPg++13.3.0	Success	5,084
Mar 10, 2026 17:00	Sergey Serebryakov	CPPg++13.3.0	Success	8,834
Mar 10, 2026 16:58	caando	CPPg++13.3.0	Success	5,089
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

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