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 21, 2026 19:46	Dominique Garmier	RUSTrust-1.94.0	Success	9,258
Mar 21, 2026 19:45	Dominique Garmier	RUSTrust-1.94.0	Success	18,477
Mar 21, 2026 19:41	Dominique Garmier	RUSTrust-1.94.0	Success	9,229
Mar 21, 2026 19:27	Dominique Garmier	RUSTrust-1.94.0	Success	10,436
Mar 21, 2026 19:25	Dominique Garmier	RUSTrust-1.94.0	Success	9,131
Mar 21, 2026 19:22	Dominique Garmier	RUSTrust-1.94.0	Success	9,381
Mar 21, 2026 19:21	Dominique Garmier	RUSTrust-1.94.0	Success	40,084
Mar 21, 2026 19:19	Dominique Garmier	RUSTrust-1.94.0	Success	47,427
Mar 21, 2026 19:17	Dominique Garmier	RUSTrust-1.94.0	Error
Mar 21, 2026 19:14	Dominique Garmier	RUSTrust-1.94.0	Success	64,364
Mar 21, 2026 19:13	Dominique Garmier	GOgo1.26.1	Success	94,339
Mar 21, 2026 19:13	Dominique Garmier	RUSTrust-1.94.0	Success	57,703
Mar 21, 2026 19:11	Dominique Garmier	GOgo1.26.1	Success	88,699
Mar 21, 2026 19:10	Dominique Garmier	RUSTrust-1.94.0	Success	94,496
Mar 21, 2026 19:07	Dominique Garmier	RUSTrust-1.94.0	Success	64,622
Mar 21, 2026 19:06	Dominique Garmier	RUSTrust-1.94.0	Success	99,502
Mar 21, 2026 18:16	olliecrow	GOgo1.26.1	Success	5,873+2.03 RP
Mar 21, 2026 17:33	olliecrow	GOgo1.26.1	Success	5,880+22.26 RP
Mar 21, 2026 17:21	olliecrow	CPPg++13.3.0	Error
Mar 21, 2026 17:16	olliecrow	CSHARP9.0.14	Error
Mar 21, 2026 17:11	olliecrow	CSHARP9.0.14	Error
Mar 21, 2026 17:07	olliecrow	CSHARP9.0.14	Success	31,188
Mar 21, 2026 16:39	olliecrow	GOgo1.26.1	Error
Mar 21, 2026 16:20	Josu San Martin	CPPg++13.3.0	Success	5,707
Mar 21, 2026 16:20	Josu San Martin	CPPclang++18.1.3	Success	5,295
Mar 21, 2026 16:15	Dominique Garmier	RUSTrust-1.94.0	Success	64,288
Mar 21, 2026 15:44	Josu San Martin	CPPclang++18.1.3	Success	6,222
Mar 21, 2026 15:21	olliecrow	CSHARP9.0.14	Success	31,347
Mar 21, 2026 15:14	olliecrow	GOgo1.21.13	Success	5,958+6.73 RP
Mar 21, 2026 15:08	olliecrow	GOgo1.26.1	Success	5,982+147.52 RP
Mar 21, 2026 14:54	Josu San Martin	CPPclang++18.1.3	Success	5,641
Mar 21, 2026 14:50	olliecrow	CSHARP9.0.14	Success	43,663
Mar 21, 2026 14:48	wn	CPPclang++18.1.3	Error
Mar 21, 2026 14:47	olliecrow	RUSTrust-1.94.0	Success	6,116
Mar 21, 2026 14:47	olliecrow	RUSTrust-1.94.0	Success	6,159
Mar 21, 2026 14:46	olliecrow	RUSTrust-1.94.0	Success	6,122
Mar 21, 2026 14:46	olliecrow	RUSTrust-1.94.0	Success	6,123
Mar 21, 2026 14:46	olliecrow	RUSTrust-1.94.0	Success	6,122
Mar 21, 2026 14:46	olliecrow	RUSTrust-1.94.0	Success	6,123
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,141
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,099
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,127
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,124
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,058
Mar 21, 2026 14:45	olliecrow	RUSTrust-1.94.0	Success	6,047
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,126
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,138
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,127
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,129
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,125
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,135
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,130
Mar 21, 2026 14:44	olliecrow	RUSTrust-1.94.0	Success	6,159
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,153
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,094
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,096
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,051
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,152
Mar 21, 2026 14:43	olliecrow	RUSTrust-1.94.0	Success	6,094
Mar 21, 2026 14:42	olliecrow	RUSTrust-1.94.0	Success	6,129
Mar 21, 2026 14:42	olliecrow	RUSTrust-1.94.0	Success	6,137
Mar 21, 2026 14:42	olliecrow	RUSTrust-1.94.0	Success	6,157
Mar 21, 2026 14:42	olliecrow	RUSTrust-1.94.0	Success	6,142
Mar 21, 2026 14:41	olliecrow	RUSTrust-1.94.0	Success	6,118
Mar 21, 2026 14:41	olliecrow	RUSTrust-1.94.0	Success	6,070
Mar 21, 2026 14:41	olliecrow	RUSTrust-1.94.0	Success	6,117
Mar 21, 2026 14:41	olliecrow	RUSTrust-1.94.0	Success	6,142
Mar 21, 2026 14:41	olliecrow	RUSTrust-1.94.0	Success	6,161
Mar 21, 2026 14:40	olliecrow	RUSTrust-1.94.0	Success	6,083
Mar 21, 2026 14:40	olliecrow	RUSTrust-1.94.0	Success	6,125
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,135
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,124
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,120
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,117
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,041
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,132
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,072
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,091
Mar 21, 2026 14:39	olliecrow	RUSTrust-1.94.0	Success	6,087
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,088
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,090
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,125
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,160
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,140
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,148
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,117
Mar 21, 2026 14:38	olliecrow	RUSTrust-1.94.0	Success	6,160
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,142
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,095
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,070
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,125
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,135
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,122
Mar 21, 2026 14:37	olliecrow	RUSTrust-1.94.0	Success	6,093
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,120
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,121
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,123
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,084
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,093
Mar 21, 2026 14:36	olliecrow	RUSTrust-1.94.0	Success	6,159

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