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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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
Aug 11, 2025 11:37	ndren	RUSTrust-1.89.0	Success	462,915
Aug 11, 2025 11:35	ndren	RUSTrust-1.89.0	Error
Aug 11, 2025 11:31	ndren	RUSTrust-1.89.0	Success	432,847
Aug 11, 2025 11:31	ndren	RUSTrust-1.89.0	Success	432,373
Aug 11, 2025 11:29	ndren	RUSTrust-1.89.0	Success	381,485
Aug 11, 2025 11:28	ndren	RUSTrust-1.89.0	Success	378,197
Aug 11, 2025 11:28	ndren	RUSTrust-1.89.0	Success	400,758
Aug 11, 2025 11:23	ndren	CPPg++13.2.0	Success	60,834
Aug 11, 2025 11:23	ndren	CPPg++13.2.0	Error
Aug 11, 2025 11:20	ndren	CPPg++13.2.0	Success	61,407
Aug 11, 2025 11:19	ndren	CPPg++13.2.0	Success	61,399
Aug 11, 2025 09:45	Ashish Ahuja	CPPg++13.3.0	Error
Aug 11, 2025 05:45	Ryhbt	CPPg++13.3.0	Success	102,924
Aug 11, 2025 05:45	Ryhbt	CPPg++13.3.0	Success	68,454
Aug 11, 2025 05:45	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:44	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:44	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:42	Ryhbt	CPPg++13.3.0	Success	73,181
Aug 11, 2025 05:42	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:41	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:41	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:36	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:35	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:31	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:26	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:24	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:18	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 05:00	Ryhbt	CPPg++13.3.0	Success	56,584
Aug 11, 2025 03:31	Ryhbt	CPPg++13.3.0	Success	56,583
Aug 11, 2025 03:22	Ryhbt	CPPg++13.3.0	Success	67,423
Aug 11, 2025 03:19	Leon Zhao	CPPg++13.3.0	Success	57,389
Aug 11, 2025 02:57	Leon Zhao	CPPg++13.3.0	Success	11,917
Aug 11, 2025 02:57	Ryhbt	CPPg++13.3.0	Success	56,544
Aug 11, 2025 02:55	Ryhbt	CPPg++13.3.0	Success	62,864
Aug 11, 2025 02:50	Ryhbt	CPPg++13.3.0	Success	63,585
Aug 11, 2025 02:50	Ryhbt	CPPg++13.3.0	Success	63,585
Aug 11, 2025 02:48	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 02:47	Leon Zhao	CPP	Success	11,675
Aug 11, 2025 02:32	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 02:23	Ryhbt	CPPg++13.3.0	Success	53,903
Aug 11, 2025 02:22	Leon Zhao	CPPg++13.3.0	Success	12,428
Aug 11, 2025 02:15	Ryhbt	CPPg++13.3.0	Success	53,892+0.13 RP
Aug 11, 2025 02:13	Ryhbt	CPPg++13.3.0	Success	53,930
Aug 11, 2025 02:13	Ryhbt	CPPg++13.3.0	Success	53,929+13.57 RP
Aug 11, 2025 02:08	Ryhbt	CPPg++13.3.0	Success	58,871
Aug 11, 2025 02:01	Ryhbt	CPPg++13.3.0	Success	58,187+1.94 RP
Aug 11, 2025 02:00	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 01:59	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 01:37	Leon Zhao	CPPg++13.3.0	Success	11,223+11.06 RP
Aug 11, 2025 00:26	Leon Zhao	CPPg++13.3.0	Success	11,826
Aug 11, 2025 00:06	Leon Zhao	CPPg++13.3.0	Success	11,368
Aug 10, 2025 23:30	Leon Zhao	CPPg++13.3.0	Success	11,364+113.63 RP
Aug 10, 2025 23:23	Leon Zhao	CPPg++13.3.0	Success	13,049+37.96 RP
Aug 10, 2025 22:54	Leon Zhao	CPPg++13.3.0	Success	14,093
Aug 10, 2025 22:31	Leon Zhao	CPPg++13.3.0	Success	13,729+15.93 RP
Aug 10, 2025 21:23	rockyou1337	CPPg++13.3.0	Error
Aug 10, 2025 14:26	Ashish Ahuja	CPPg++13.3.0	Success	2,031,546
Aug 10, 2025 04:03	rockyou1337	CPPg++13.3.0	Success	76,689
Aug 10, 2025 03:51	rockyou1337	CPPg++13.3.0	Success	59,193
Aug 10, 2025 03:46	rockyou1337	CPPg++13.3.0	Success	65,802
Aug 9, 2025 13:17	rishab-nahar	CPPg++13.3.0	Success	2,066,905+4.84 RP
Aug 9, 2025 10:30	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 10:04	Ashish Ahuja	CPPg++13.3.0	Success	2,744,593
Aug 9, 2025 09:38	Ashish Ahuja	CPPg++13.3.0	Success	2,309,215
Aug 9, 2025 09:23	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 09:18	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 09:11	Ashish Ahuja	CPPg++13.3.0	Success	2,315,473
Aug 9, 2025 08:57	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 08:50	Ashish Ahuja	CPPg++13.3.0	Success	2,308,018
Aug 9, 2025 08:43	Ashish Ahuja	CPPg++13.3.0	Success	2,306,449
Aug 9, 2025 08:41	Ashish Ahuja	CPPg++13.3.0	Success	2,308,232
Aug 9, 2025 08:38	Ashish Ahuja	CPPg++13.3.0	Error
Aug 9, 2025 08:28	Ashish Ahuja	CPPg++13.3.0	Success	2,306,780
Aug 9, 2025 08:25	Ashish Ahuja	CPPg++13.3.0	Success	2,303,143
Aug 9, 2025 05:23	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 05:20	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 05:16	python357-1	CPPg++13.3.0	Error
Aug 9, 2025 03:40	Leon Zhao	CPPg++13.3.0	Success	14,113
Aug 9, 2025 03:30	Leon Zhao	CPPg++13.3.0	Success	14,036+0.10 RP
Aug 9, 2025 03:20	Leon Zhao	CPPg++13.3.0	Success	14,038+41.80 RP
Aug 9, 2025 02:33	Leon Zhao	CPPg++13.3.0	Success	14,913+31.33 RP
Aug 9, 2025 02:30	Leon Zhao	CPPg++13.3.0	Success	16,077
Aug 9, 2025 02:28	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 02:28	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:41	Leon Zhao	CPPg++13.3.0	Success	15,644+5.47 RP
Aug 9, 2025 01:40	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:40	Leon Zhao	CPPg++13.3.0	Success	15,779+7.66 RP
Aug 9, 2025 01:39	Leon Zhao	CPPg++13.3.0	Error
Aug 9, 2025 01:38	Leon Zhao	CPPg++13.3.0	Success	15,972+30.29 RP
Aug 9, 2025 01:36	Leon Zhao	CPPg++13.3.0	Success	17,625
Aug 9, 2025 00:55	Leon Zhao	CPPg++13.3.0	Success	16,784+0.25 RP
Aug 9, 2025 00:49	Leon Zhao	CPPg++13.3.0	Success	17,466
Aug 9, 2025 00:41	Leon Zhao	CPPg++13.3.0	Success	16,791+0.04 RP
Aug 9, 2025 00:40	Leon Zhao	CPPg++13.3.0	Success	17,521
Aug 9, 2025 00:36	Leon Zhao	CPPg++13.3.0	Success	16,794
Aug 9, 2025 00:33	Leon Zhao	CPPg++13.3.0	Success	18,315
Aug 9, 2025 00:30	Leon Zhao	CPPg++13.3.0	Success	16,797
Aug 9, 2025 00:29	Leon Zhao	CPPg++13.3.0	Success	16,792+12.13 RP
Aug 9, 2025 00:26	Leon Zhao	CPPg++13.3.0	Success	18,764
Aug 9, 2025 00:24	Leon Zhao	CPPg++13.3.0	Success	17,461

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