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
Dec 5, 2025 20:05	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 19:14	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 19:06	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 18:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 10:12	Alexander Ruliov	RUSTrust-1.91.1	Success	455,466+21.96 RP
Dec 5, 2025 09:03	lmaoha	CPPg++13.3.0	Success	2,065,415+4.84 RP
Dec 5, 2025 09:03	warship	CPPclang++18.1.3	Success	67,552+0.15 RP
Dec 5, 2025 08:58	warship	CPPclang++18.1.3	Success	78,954
Dec 5, 2025 08:52	warship	CPPclang++18.1.3	Success	78,854
Dec 5, 2025 08:47	warship	CPPclang++18.1.3	Success	67,622+3.76 RP
Dec 5, 2025 08:46	warship	CPPg++13.3.0	Success	75,884
Dec 5, 2025 08:39	warship	CPPg++13.3.0	Success	72,135
Dec 5, 2025 08:37	warship	CPPclang++18.1.3	Success	69,388+47.97 RP
Dec 5, 2025 08:35	warship	CPPclang++18.1.3	Error
Dec 5, 2025 08:34	warship	CPPclang++18.1.3	Error
Dec 5, 2025 08:25	warship	CPPclang++18.1.3	Success	145,554
Dec 5, 2025 07:09	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 07:03	Rajarshi Basu	CPPg++13.3.0	Success	2,433,278
Dec 5, 2025 07:01	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 07:00	Rajarshi Basu	CPPg++13.3.0	Success	837,386
Dec 5, 2025 06:58	Rajarshi Basu	CPPg++13.3.0	Success	844,879
Dec 5, 2025 06:57	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 06:56	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 06:55	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 06:16	Rajarshi Basu	CPPg++13.3.0	Success	1,089,329
Dec 5, 2025 06:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 5, 2025 03:55	warship	CPPclang++18.1.3	Success	104,010+1.95 RP
Dec 5, 2025 03:54	warship	CPPclang++18.1.3	Success	108,011
Dec 5, 2025 02:13	warship	CPPclang++18.1.3	Error
Dec 5, 2025 02:09	warship	CPPclang++18.1.3	Error
Dec 5, 2025 00:15	Dane Urban	CPPg++13.3.0	Success	395,096+20.47 RP
Dec 5, 2025 00:11	Dane Urban	CPPg++13.3.0	Success	2,066,353
Dec 5, 2025 00:01	Dane Urban	CPPg++13.3.0	Error
Dec 4, 2025 23:58	Dane Urban	CPPg++13.3.0	Error
Dec 4, 2025 23:57	Dane Urban	CPPg++13.3.0	Success	2,065,702+4.84 RP
Dec 4, 2025 19:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 4, 2025 19:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 4, 2025 19:08	Rajarshi Basu	CPPg++13.3.0	Success	54,897
Dec 4, 2025 19:07	Rajarshi Basu	CPPg++13.3.0	Error
Dec 4, 2025 19:07	Rajarshi Basu	CPPg++13.3.0	Error
Dec 4, 2025 19:07	Rajarshi Basu	CPPg++13.3.0	Success	50,950
Dec 4, 2025 19:06	Rajarshi Basu	CPPg++13.3.0	Success	52,399
Dec 4, 2025 19:03	Rajarshi Basu	CPPg++13.3.0	Success	16,659
Dec 4, 2025 19:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 4, 2025 18:18	Rajarshi Basu	CPPg++13.3.0	Success	9,010
Dec 4, 2025 18:17	Rajarshi Basu	CPPg++13.3.0	Success	9,114
Dec 4, 2025 18:17	Rajarshi Basu	CPPg++13.3.0	Success	8,817
Dec 4, 2025 15:11	Rajarshi Basu	CPPg++13.3.0	Success	9,133
Dec 4, 2025 15:11	Rajarshi Basu	CPPg++13.3.0	Success	8,967
Dec 4, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	10,274
Dec 4, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	9,756
Dec 4, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	9,034
Dec 4, 2025 13:37	Rajarshi Basu	CPPg++13.3.0	Success	8,586
Dec 4, 2025 13:36	Rajarshi Basu	CPPg++13.3.0	Success	8,407
Dec 4, 2025 13:35	Rajarshi Basu	CPPg++13.3.0	Success	8,405
Dec 4, 2025 13:34	Rajarshi Basu	CPPg++13.3.0	Success	8,386
Dec 4, 2025 13:33	Rajarshi Basu	CPPg++13.3.0	Success	8,981
Dec 4, 2025 13:32	Rajarshi Basu	CPPg++13.3.0	Success	8,593
Dec 4, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Success	8,861
Dec 4, 2025 13:29	Rajarshi Basu	CPPg++13.3.0	Success	8,226+5.30 RP
Dec 4, 2025 13:27	Rajarshi Basu	CPPg++13.3.0	Success	8,262+3.94 RP
Dec 4, 2025 13:24	Rajarshi Basu	CPPg++13.3.0	Success	9,100
Dec 4, 2025 13:24	Rajarshi Basu	CPPg++13.3.0	Success	9,512
Dec 4, 2025 13:23	Rajarshi Basu	CPPg++13.3.0	Success	8,820
Dec 4, 2025 13:23	Rajarshi Basu	CPPg++13.3.0	Success	9,039
Dec 4, 2025 13:22	Rajarshi Basu	CPPg++13.3.0	Success	8,718
Dec 4, 2025 13:14	Rajarshi Basu	CPPg++13.3.0	Success	9,252
Dec 4, 2025 13:13	Rajarshi Basu	CPPg++13.3.0	Success	10,537
Dec 4, 2025 13:12	Rajarshi Basu	CPPg++13.3.0	Success	9,260
Dec 4, 2025 06:59	warship	CPPclang++18.1.3	Success	106,222
Dec 4, 2025 06:57	warship	CPPclang++18.1.3	Success	106,163+1.20 RP
Dec 4, 2025 06:56	warship	CPPg++13.3.0	Success	110,266
Dec 4, 2025 06:56	warship	CPPg++13.3.0	Success	110,564
Dec 4, 2025 06:55	warship	CPPg++13.3.0	Success	124,647
Dec 4, 2025 06:55	warship	CPPclang++18.1.3	Success	125,795
Dec 4, 2025 06:47	warship	CPPclang++18.1.3	Success	107,538+87.48 RP
Dec 4, 2025 06:46	warship	CPPclang++18.1.3	Error
Dec 4, 2025 06:46	warship	CPPclang++18.1.3	Error
Dec 4, 2025 06:45	warship	CPPclang++18.1.3	Error
Dec 4, 2025 06:40	warship	CPPclang++18.1.3	Error
Dec 4, 2025 06:19	warship	CPPclang++18.1.3	Success	1,831,009
Dec 4, 2025 06:12	warship	CPPg++13.3.0	Success	1,815,569+0.67 RP
Dec 4, 2025 05:18	warship	CPPg++13.3.0	Success	2,066,142+4.84 RP
Dec 3, 2025 19:33	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 18:42	Rajarshi Basu	CPPg++13.3.0	Success	8,292
Dec 3, 2025 18:41	Rajarshi Basu	CPPg++13.3.0	Success	8,472
Dec 3, 2025 18:41	Rajarshi Basu	CPPg++13.3.0	Success	8,741
Dec 3, 2025 18:35	Rajarshi Basu	CPPg++13.3.0	Success	8,290
Dec 3, 2025 18:34	Rajarshi Basu	CPPg++13.3.0	Success	8,289+239.67 RP
Dec 3, 2025 16:49	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 16:48	Rajarshi Basu	CPPg++13.3.0	Success	52,607
Dec 3, 2025 16:47	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 15:29	Rajarshi Basu	CPPg++13.3.0	Success	12,082
Dec 3, 2025 15:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 15:26	Rajarshi Basu	CPPg++13.3.0	Success	10,576
Dec 3, 2025 15:19	Rajarshi Basu	CPPg++13.3.0	Success	10,344+108.89 RP
Dec 3, 2025 15:00	Rajarshi Basu	CPPg++13.3.0	Success	11,658
Dec 3, 2025 14:58	Rajarshi Basu	CPPg++13.3.0	Success	11,920
Dec 3, 2025 14:57	Rajarshi Basu	CPPg++13.3.0	Success	12,062
Dec 3, 2025 14:55	Rajarshi Basu	CPPg++13.3.0	Success	11,657+11.69 RP

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