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
Feb 24, 2026 19:30	wn	CPPclang++18.1.3	Success	5,607
Feb 24, 2026 19:29	Daniel Mastalerz	CPPclang++18.1.3	Success	6,246
Feb 24, 2026 19:29	Daniel Mastalerz	CPPclang++18.1.3	Success	6,566
Feb 24, 2026 19:28	Daniel Mastalerz	CPPclang++18.1.3	Success	5,494+17.39 RP
Feb 24, 2026 19:26	Daniel Mastalerz	CPPclang++18.1.3	Success	5,643
Feb 24, 2026 19:16	Daniel Mastalerz	CPPclang++18.1.3	Success	5,833
Feb 24, 2026 19:14	Daniel Mastalerz	CPPclang++18.1.3	Success	12,113
Feb 24, 2026 19:12	Daniel Mastalerz	CPPclang++18.1.3	Success	5,574
Feb 24, 2026 19:03	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 24, 2026 19:02	Daniel Mastalerz	CPPclang++18.1.3	Success	5,621
Feb 24, 2026 19:00	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 24, 2026 18:59	Daniel Mastalerz	CPPclang++18.1.3	Success	7,172
Feb 24, 2026 18:58	Daniel Mastalerz	CPPclang++18.1.3	Success	7,153
Feb 24, 2026 18:56	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,703
Feb 24, 2026 18:53	Daniel Mastalerz	CPPclang++18.1.3	Success	5,576
Feb 24, 2026 18:53	Daniel Mastalerz	CPPclang++18.1.3	Success	5,560
Feb 24, 2026 18:53	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,519
Feb 24, 2026 18:51	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,656
Feb 24, 2026 18:49	Daniel Mastalerz	CPPclang++18.1.3	Success	5,597
Feb 24, 2026 18:48	Daniel Mastalerz	CPPclang++18.1.3	Success	5,585
Feb 24, 2026 18:45	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,490+3.64 RP
Feb 24, 2026 18:41	Daniel Mastalerz	CPPclang++18.1.3	Success	5,551
Feb 24, 2026 18:40	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,503
Feb 24, 2026 18:38	Daniel Mastalerz	CPPclang++18.1.3	Success	5,660
Feb 24, 2026 18:36	Daniel Mastalerz	CPPclang++18.1.3	Success	5,623
Feb 24, 2026 18:30	Kacper Grzybowski	CPPg++13.3.0	Success	52,934
Feb 24, 2026 18:28	Kacper Grzybowski	CPPg++13.3.0	Success	48,754+47.41 RP
Feb 24, 2026 18:19	Kacper Grzybowski	CPPg++13.3.0	Success	63,409+2.28 RP
Feb 24, 2026 17:17	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,516
Feb 24, 2026 17:15	Daniel Mastalerz	CPPclang++18.1.3	Success	5,704
Feb 24, 2026 16:51	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 24, 2026 16:48	spatial	RUSTrust-1.93.1	Success	84,169
Feb 24, 2026 16:44	spatial	RUSTrust-1.93.1	Success	75,434
Feb 24, 2026 16:37	Daniel Mastalerz	CPPclang++18.1.3	Success	8,444
Feb 24, 2026 16:36	spatial	RUSTrust-1.93.1	Success	84,054
Feb 24, 2026 16:34	spatial	RUSTrust-1.93.1	Error
Feb 24, 2026 16:32	spatial	RUSTrust-1.93.1	Error
Feb 24, 2026 16:32	Daniel Mastalerz	CPPclang++18.1.3	Success	8,662
Feb 24, 2026 16:24	Daniel Mastalerz	CPPclang++18.1.3	Success	5,725
Feb 24, 2026 16:22	spatial	RUSTrust-1.93.1	Success	72,056+33.92 RP
Feb 24, 2026 16:18	spatial	RUSTrust-1.93.1	Success	95,365+0.27 RP
Feb 24, 2026 16:16	spatial	RUSTrust-1.93.1	Success	95,614+104.59 RP
Feb 24, 2026 15:18	wn	CPPclang++18.1.3	Success	4,707
Feb 24, 2026 14:09	Alex Kent	CPPg++13.3.0	Success	43,280
Feb 24, 2026 13:55	Sneed	CPPclang++18.1.3	Success	12,965+279.42 RP
Feb 24, 2026 13:51	Sneed	CPPclang++18.1.3	Error
Feb 24, 2026 13:45	Sneed	CPPclang++18.1.3	Success	67,037
Feb 24, 2026 13:39	Sneed	CPPclang++18.1.3	Success	20,330+256.71 RP
Feb 24, 2026 13:31	Sneed	CPPclang++18.1.3	Success	42,522+2.01 RP
Feb 24, 2026 13:31	Sneed	CPPclang++18.1.3	Error
Feb 24, 2026 13:30	Sneed	CPPclang++18.1.3	Success	42,889+14.53 RP
Feb 24, 2026 11:44	satoru.net	CPPg++13.3.0	Success	35,283
Feb 24, 2026 11:41	satoru.net	CPPg++13.3.0	Success	32,086
Feb 24, 2026 11:37	satoru.net	CPPg++13.3.0	Success	38,406
Feb 24, 2026 11:33	satoru.net	CPPg++13.3.0	Success	40,792
Feb 24, 2026 11:18	satoru.net	CPPg++13.3.0	Success	34,929
Feb 24, 2026 10:00	satoru.net	CPPg++13.3.0	Error
Feb 24, 2026 08:25	satoru.net	CPPg++13.3.0	Error
Feb 24, 2026 07:16	satoru.net	CPPg++13.3.0	Success	29,766+37.29 RP
Feb 24, 2026 06:55	satoru.net	CPPg++13.3.0	Success	33,711
Feb 23, 2026 21:47	Daniel Mastalerz	CPPclang++18.1.3	Success	6,120
Feb 23, 2026 21:41	Daniel Mastalerz	CPPclang++18.1.3	Success	6,197
Feb 23, 2026 21:41	Daniel Mastalerz	CPPclang++18.1.3	Success	6,122
Feb 23, 2026 21:37	Daniel Mastalerz	CPPclang++18.1.3	Success	5,864
Feb 23, 2026 21:36	Daniel Mastalerz	CPPclang++18.1.3	Success	5,719
Feb 23, 2026 21:32	Daniel Mastalerz	CPPclang++18.1.3	Success	5,691
Feb 23, 2026 21:31	Daniel Mastalerz	CPPclang++18.1.3	Success	5,854
Feb 23, 2026 21:25	Daniel Mastalerz	CPPclang++18.1.3	Success	5,578
Feb 23, 2026 21:22	Daniel Mastalerz	CPPclang++18.1.3	Success	5,691
Feb 23, 2026 21:22	Daniel Mastalerz	CPPclang++18.1.3	Success	5,685
Feb 23, 2026 21:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,617
Feb 23, 2026 21:07	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 21:03	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:54	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:53	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:50	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:47	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:46	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:45	wn	CPPclang++18.1.3	Success	4,397
Feb 23, 2026 20:45	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:42	wn	CPPclang++18.1.3	Success	4,438
Feb 23, 2026 20:40	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:36	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:34	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:33	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 20:31	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 23, 2026 19:52	wn	CPPclang++18.1.3	Success	4,455
Feb 23, 2026 19:49	wn	CPPclang++18.1.3	Success	4,441
Feb 23, 2026 19:48	wn	CPPclang++18.1.3	Success	5,450
Feb 23, 2026 19:47	satoru.net	CPPg++13.3.0	Success	33,482+4.75 RP
Feb 23, 2026 19:47	wn	CPPclang++18.1.3	Success	4,880
Feb 23, 2026 19:44	wn	CPPclang++18.1.3	Error
Feb 23, 2026 19:43	wn	CPPclang++18.1.3	Success	5,040
Feb 23, 2026 19:41	wn	CPPclang++18.1.3	Error
Feb 23, 2026 19:40	wn	CPPclang++18.1.3	Success	5,072
Feb 23, 2026 19:33	Kacper Grzybowski	CPPg++13.3.0	Success	64,674
Feb 23, 2026 19:24	wn	CPPclang++18.1.3	Success	4,387
Feb 23, 2026 19:24	Kacper Grzybowski	CPPg++13.3.0	Success	64,340+136.56 RP
Feb 23, 2026 19:23	wn	CPPclang++18.1.3	Success	5,378
Feb 23, 2026 19:23	wn	CPPclang++18.1.3	Success	5,664

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