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 14, 2026 21:29	wn	CPPclang++18.1.3	Success	4,350
Mar 14, 2026 21:29	wn	CPPclang++18.1.3	Success	4,456
Mar 14, 2026 21:29	wn	CPPclang++18.1.3	Success	4,437
Mar 14, 2026 21:28	wn	CPPclang++18.1.3	Success	4,356
Mar 14, 2026 21:28	wn	CPPclang++18.1.3	Success	4,417
Mar 14, 2026 21:28	wn	CPPclang++18.1.3	Success	4,370
Mar 14, 2026 21:28	wn	CPPclang++18.1.3	Success	4,406
Mar 14, 2026 21:27	wn	CPPclang++18.1.3	Success	4,359
Mar 14, 2026 21:27	wn	CPPclang++18.1.3	Success	4,406
Mar 14, 2026 21:27	wn	CPPclang++18.1.3	Success	4,366
Mar 14, 2026 21:27	wn	CPPclang++18.1.3	Success	4,440
Mar 14, 2026 21:26	wn	CPPclang++18.1.3	Success	4,356
Mar 14, 2026 21:26	wn	CPPclang++18.1.3	Success	4,409
Mar 14, 2026 21:26	wn	CPPclang++18.1.3	Success	4,356
Mar 14, 2026 21:26	wn	CPPclang++18.1.3	Success	4,440
Mar 14, 2026 21:25	wn	CPPclang++18.1.3	Success	4,371
Mar 14, 2026 21:25	wn	CPPclang++18.1.3	Success	4,413
Mar 14, 2026 21:25	wn	CPPclang++18.1.3	Success	4,353
Mar 14, 2026 21:25	wn	CPPclang++18.1.3	Success	4,408
Mar 14, 2026 21:24	wn	CPPclang++18.1.3	Success	4,353
Mar 14, 2026 21:24	wn	CPPclang++18.1.3	Success	4,419
Mar 14, 2026 21:24	wn	CPPclang++18.1.3	Success	4,404
Mar 14, 2026 21:24	wn	CPPclang++18.1.3	Success	4,401
Mar 14, 2026 21:23	wn	CPPclang++18.1.3	Success	4,362
Mar 14, 2026 21:23	wn	CPPclang++18.1.3	Success	4,387
Mar 14, 2026 21:23	wn	CPPclang++18.1.3	Success	4,357
Mar 14, 2026 21:23	wn	CPPclang++18.1.3	Success	4,397
Mar 14, 2026 21:22	wn	CPPclang++18.1.3	Success	4,368
Mar 14, 2026 21:22	wn	CPPclang++18.1.3	Success	4,405
Mar 14, 2026 21:22	wn	CPPclang++18.1.3	Success	4,373
Mar 14, 2026 21:22	wn	CPPclang++18.1.3	Success	4,419
Mar 14, 2026 21:21	wn	CPPclang++18.1.3	Success	4,372
Mar 14, 2026 21:21	wn	CPPclang++18.1.3	Success	4,444
Mar 14, 2026 21:21	wn	CPPclang++18.1.3	Success	4,383
Mar 14, 2026 21:21	wn	CPPclang++18.1.3	Success	4,445
Mar 14, 2026 21:20	wn	CPPclang++18.1.3	Success	4,439
Mar 14, 2026 21:20	wn	CPPclang++18.1.3	Success	4,515
Mar 14, 2026 21:20	wn	CPPclang++18.1.3	Success	4,540
Mar 14, 2026 21:18	Ondřej Polanecký	CPPg++13.3.0	Success	45,228+83.57 RP
Mar 14, 2026 21:06	Ondřej Polanecký	CPPg++13.3.0	Success	72,710+132.70 RP
Mar 14, 2026 20:59	wn	CPPclang++18.1.3	Success	6,351
Mar 14, 2026 20:58	wn	CPPclang++18.1.3	Success	4,260+2.20 RP
Mar 14, 2026 20:57	wn	CPPclang++18.1.3	Success	4,265
Mar 14, 2026 20:54	wn	CPPclang++18.1.3	Success	4,846
Mar 14, 2026 20:52	wn	CPPclang++18.1.3	Success	4,264+0.55 RP
Mar 14, 2026 20:51	wn	CPPclang++18.1.3	Success	4,313
Mar 14, 2026 20:50	wn	CPPclang++18.1.3	Success	4,284
Mar 14, 2026 20:49	wn	CPPclang++18.1.3	Success	4,265+2.20 RP
Mar 14, 2026 20:48	wn	CPPclang++18.1.3	Error
Mar 14, 2026 20:46	Ondřej Polanecký	CPPg++13.3.0	Success	2,068,539+4.83 RP
Mar 14, 2026 20:38	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 14, 2026 20:36	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 14, 2026 20:24	wn	CPPclang++18.1.3	Success	6,099
Mar 14, 2026 20:07	wn	CPPclang++18.1.3	Success	4,473
Mar 14, 2026 20:02	wn	CPPclang++18.1.3	Error
Mar 14, 2026 20:02	wn	CPPclang++18.1.3	Error
Mar 14, 2026 20:01	wn	CPPclang++18.1.3	Error
Mar 14, 2026 19:46	wn	CPPclang++18.1.3	Error
Mar 14, 2026 19:45	wn	CPPclang++18.1.3	Success	4,344
Mar 14, 2026 19:45	wn	CPPclang++18.1.3	Error
Mar 14, 2026 19:44	wn	CPPclang++18.1.3	Error
Mar 14, 2026 19:43	wn	CPPclang++18.1.3	Error
Mar 14, 2026 19:37	wn	CPPclang++18.1.3	Success	30,116
Mar 14, 2026 19:25	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 19:19	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 19:18	zielaj	CPPclang++18.1.3	Error
Mar 14, 2026 19:15	wn	CPPclang++18.1.3	Success	4,269+1.10 RP
Mar 14, 2026 19:13	wn	CPPclang++18.1.3	Success	4,271
Mar 14, 2026 19:11	wn	CPPclang++18.1.3	Success	4,281
Mar 14, 2026 19:10	wn	CPPclang++18.1.3	Success	4,277
Mar 14, 2026 19:04	Elijah Kin	CPPclang++18.1.3	Success	65,785
Mar 14, 2026 19:03	wn	CPPclang++18.1.3	Success	4,271+3.83 RP
Mar 14, 2026 19:03	wn	CPPclang++18.1.3	Success	4,278
Mar 14, 2026 18:58	wn	CPPclang++18.1.3	Success	4,282
Mar 14, 2026 18:55	wn	CPPclang++18.1.3	Success	4,278+1.09 RP
Mar 14, 2026 18:45	wn	CPPclang++18.1.3	Success	4,283
Mar 14, 2026 18:45	Elijah Kin	CPPclang++18.1.3	Success	65,747+1.49 RP
Mar 14, 2026 18:31	wn	CPPclang++18.1.3	Success	4,280
Mar 14, 2026 18:30	wn	CPPclang++18.1.3	Success	4,439
Mar 14, 2026 18:25	Elijah Kin	CPPclang++18.1.3	Success	66,413
Mar 14, 2026 18:24	Elijah Kin	CPPclang++18.1.3	Success	68,750
Mar 14, 2026 18:23	Elijah Kin	CPPclang++18.1.3	Success	68,782
Mar 14, 2026 18:21	Elijah Kin	CPPclang++18.1.3	Success	72,575
Mar 14, 2026 18:16	wn	CPPclang++18.1.3	Success	4,280+29.64 RP
Mar 14, 2026 18:09	Elijah Kin	CPPclang++18.1.3	Success	66,396+2.65 RP
Mar 14, 2026 18:08	Elijah Kin	CPPclang++18.1.3	Success	69,667
Mar 14, 2026 18:05	Elijah Kin	CPPclang++18.1.3	Success	67,583+21.67 RP
Mar 14, 2026 18:02	Elijah Kin	CPPg++13.3.0	Success	139,908
Mar 14, 2026 17:59	wn	CPPclang++18.1.3	Error
Mar 14, 2026 17:57	Elijah Kin	CPPg++13.3.0	Success	104,987
Mar 14, 2026 17:49	Elijah Kin	CPPg++13.3.0	Success	79,182+3.63 RP
Mar 14, 2026 17:38	Elijah Kin	CPPg++13.3.0	Success	81,525+95.39 RP
Mar 14, 2026 17:23	matsuoka-601	CPPclang++18.1.3	Success	4,884
Mar 14, 2026 16:37	wn	CPPclang++18.1.3	Error
Mar 14, 2026 16:31	wn	CPPclang++18.1.3	Success	4,418
Mar 14, 2026 16:29	wn	CPPclang++18.1.3	Success	5,876
Mar 14, 2026 16:27	wn	CPPclang++18.1.3	Error
Mar 14, 2026 16:27	wn	CPPclang++18.1.3	Success	5,926
Mar 14, 2026 16:20	wn	CPPclang++18.1.3	Success	5,910
Mar 14, 2026 16:08	matsuoka-601	CPPclang++18.1.3	Success	5,402

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