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 15, 2025 21:08	Aryan Jain	CPPclang++18.1.3	Success	65,077
Aug 15, 2025 21:07	Aryan Jain	CPPclang++18.1.3	Success	64,801+105.08 RP
Aug 15, 2025 21:06	Aryan Jain	CPPclang++18.1.3	Success	485,720
Aug 15, 2025 20:54	Aryan Jain	CPPg++13.3.0	Error
Aug 15, 2025 20:45	Aryan Jain	CPPg++13.3.0	Error
Aug 15, 2025 20:35	Aryan Jain	CPPg++13.3.0	Success	2,065,611
Aug 15, 2025 14:22	Semyon	CPPg++13.3.0	Success	2,066,843+4.84 RP
Aug 15, 2025 14:15	Serhat Eren	CPPg++13.3.0	Success	395,015
Aug 15, 2025 14:14	Serhat Eren	CPPg++13.3.0	Success	398,747
Aug 15, 2025 14:09	Serhat Eren	CPPg++13.3.0	Success	394,925+20.48 RP
Aug 15, 2025 14:01	Serhat Eren	CPPg++13.3.0	Success	2,066,067
Aug 15, 2025 13:58	Serhat Eren	CPPg++13.3.0	Success	2,066,224+4.84 RP
Aug 14, 2025 14:38	Andrija Zarić	RUSTrust-1.89.0	Success	52,821+8.20 RP
Aug 14, 2025 05:21	Andrija Zarić	RUSTrust-1.89.0	Success	55,213+3.86 RP
Aug 14, 2025 03:19	Andrija Zarić	RUSTrust-1.89.0	Success	56,434
Aug 14, 2025 03:15	Andrija Zarić	RUSTrust-1.89.0	Success	70,402
Aug 14, 2025 02:12	Andrija Zarić	RUSTrust-1.89.0	Success	64,576
Aug 14, 2025 02:09	Andrija Zarić	RUSTrust-1.89.0	Success	64,571
Aug 14, 2025 00:04	Andrija Zarić	RUSTrust-1.89.0	Success	56,416+10.64 RP
Aug 13, 2025 23:07	Andrija Zarić	RUSTrust-1.89.0	Success	61,189
Aug 13, 2025 23:06	Andrija Zarić	RUSTrust-1.89.0	Error
Aug 13, 2025 22:44	Andrija Zarić	RUSTrust-1.89.0	Success	60,020+23.03 RP
Aug 13, 2025 22:01	Andrija Zarić	RUSTrust-1.89.0	Success	72,374
Aug 13, 2025 22:00	Andrija Zarić	RUSTrust-1.89.0	Error
Aug 13, 2025 21:08	Andrija Zarić	RUSTrust-1.89.0	Success	70,486
Aug 13, 2025 21:00	Andrija Zarić	RUSTrust-1.89.0	Success	70,477
Aug 13, 2025 20:57	Andrija Zarić	RUSTrust-1.89.0	Success	72,726
Aug 13, 2025 20:54	Andrija Zarić	RUSTrust-1.89.0	Success	72,729
Aug 13, 2025 20:46	Andrija Zarić	RUSTrust-1.89.0	Success	72,744
Aug 13, 2025 20:43	Andrija Zarić	RUSTrust-1.89.0	Success	69,862
Aug 13, 2025 20:42	Andrija Zarić	RUSTrust-1.89.0	Success	70,798
Aug 13, 2025 20:41	Andrija Zarić	RUSTrust-1.89.0	Success	72,679
Aug 13, 2025 20:30	Andrija Zarić	RUSTrust-1.89.0	Success	73,111
Aug 13, 2025 18:00	Andrija Zarić	RUSTrust-1.89.0	Success	94,920
Aug 13, 2025 17:59	Andrija Zarić	RUSTrust-1.89.0	Success	72,245
Aug 13, 2025 17:49	Andrija Zarić	RUSTrust-1.89.0	Success	69,648+0.18 RP
Aug 13, 2025 17:42	Andrija Zarić	RUSTrust-1.89.0	Success	69,734+82.02 RP
Aug 13, 2025 16:15	Andrija Zarić	RUSTrust-1.89.0	Success	162,926+35.07 RP
Aug 13, 2025 16:14	Andrija Zarić	RUSTrust-1.89.0	Success	394,623
Aug 13, 2025 14:49	Andrija Zarić	RUSTrust-1.89.0	Success	429,752
Aug 13, 2025 13:05	Andrija Zarić	RUSTrust-1.89.0	Success	402,910
Aug 13, 2025 13:04	Andrija Zarić	RUSTrust-1.89.0	Success	389,741
Aug 13, 2025 10:10	Andrija Zarić	RUSTrust-1.89.0	Success	386,328
Aug 13, 2025 10:08	Andrija Zarić	RUSTrust-1.89.0	Success	380,103+1.06 RP
Aug 13, 2025 10:05	Andrija Zarić	RUSTrust-1.89.0	Success	396,055+25.25 RP
Aug 13, 2025 02:24	Leon Zhao	CPPg++13.3.0	Error
Aug 12, 2025 02:50	Ashish Ahuja	CPPg++13.3.0	Success	41,916+8.81 RP
Aug 12, 2025 02:36	Ashish Ahuja	CPPg++13.3.0	Success	43,524+4.47 RP
Aug 12, 2025 02:36	Ashish Ahuja	CPPg++13.3.0	Success	46,219
Aug 12, 2025 02:35	Ashish Ahuja	CPPg++13.3.0	Success	54,068
Aug 12, 2025 02:09	Ashish Ahuja	CPPg++13.3.0	Success	44,388+8.35 RP
Aug 12, 2025 02:08	Ashish Ahuja	CPPg++13.3.0	Error
Aug 12, 2025 02:04	Ashish Ahuja	CPPg++13.3.0	Success	46,097+6.25 RP
Aug 12, 2025 02:03	Ashish Ahuja	CPPg++13.3.0	Success	47,464+3.14 RP
Aug 12, 2025 02:01	Ashish Ahuja	CPPg++13.3.0	Success	48,181+37.08 RP
Aug 12, 2025 02:00	Ashish Ahuja	CPPg++13.3.0	Success	58,661+27.82 RP
Aug 11, 2025 21:52	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 20:52	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 20:42	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 20:40	Ian Mckibben	CPPclang++18.1.3	Success	12,024+10.04 RP
Aug 11, 2025 20:36	Ian Mckibben	CPPclang++18.1.3	Success	56,407
Aug 11, 2025 20:00	Leon Zhao	CPPg++13.3.0	Error
Aug 11, 2025 18:52	Leon Zhao	CPPg++13.3.0	Success	12,379
Aug 11, 2025 18:27	Leon Zhao	CPPg++13.3.0	Success	11,723
Aug 11, 2025 18:03	Ryhbt	CPPg++13.3.0	Error
Aug 11, 2025 17:55	Ryhbt	CPPg++13.3.0	Success	99,972
Aug 11, 2025 17:50	Ryhbt	CPPg++13.3.0	Success	71,679
Aug 11, 2025 17:37	Ryhbt	CPPg++13.3.0	Success	86,948
Aug 11, 2025 17:36	Ryhbt	CPPg++13.3.0	Success	86,913
Aug 11, 2025 17:36	Ryhbt	CPPg++13.3.0	Success	79,252
Aug 11, 2025 17:33	Ryhbt	CPPg++13.3.0	Success	64,769
Aug 11, 2025 17:32	Ian Mckibben	CPPclang++18.1.3	Success	12,171+0.47 RP
Aug 11, 2025 17:30	Ian Mckibben	CPPg++13.3.0	Success	15,499
Aug 11, 2025 17:29	Ian Mckibben	CPPclang++18.1.3	Success	12,178+12.09 RP
Aug 11, 2025 17:28	Ian Mckibben	CPPclang++18.1.3	Success	13,155
Aug 11, 2025 17:25	Ian Mckibben	CPPclang++18.1.3	Success	12,744
Aug 11, 2025 17:25	Ian Mckibben	CPPclang++18.1.3	Success	12,791
Aug 11, 2025 17:24	Ian Mckibben	CPPclang++18.1.3	Success	12,924
Aug 11, 2025 17:24	Ian Mckibben	CPPclang++18.1.3	Success	13,124
Aug 11, 2025 17:12	Ian Mckibben	CPPclang++18.1.3	Success	12,364
Aug 11, 2025 17:12	Ian Mckibben	CPPclang++18.1.3	Success	12,362
Aug 11, 2025 17:12	Ian Mckibben	CPPclang++18.1.3	Success	12,389
Aug 11, 2025 17:11	Ian Mckibben	CPPclang++18.1.3	Success	12,360+102.45 RP
Aug 11, 2025 17:05	Ian Mckibben	CPPclang++18.1.3	Success	14,152+3.82 RP
Aug 11, 2025 17:05	Ian Mckibben	CPPclang++18.1.3	Success	14,240
Aug 11, 2025 17:04	Ian Mckibben	CPPclang++18.1.3	Success	14,251
Aug 11, 2025 17:02	Ian Mckibben	CPPclang++18.1.3	Success	14,229+9.84 RP
Aug 11, 2025 16:58	Ian Mckibben	CPPclang++18.1.3	Success	14,431+63.63 RP
Aug 11, 2025 16:57	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 16:55	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 16:37	Ian Mckibben	CPPclang++18.1.3	Success	15,890+87.76 RP
Aug 11, 2025 16:36	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 16:34	Ian Mckibben	CPPclang++18.1.3	Success	18,465+203.96 RP
Aug 11, 2025 16:30	Ian Mckibben	CPPclang++18.1.3	Error
Aug 11, 2025 16:28	Ian Mckibben	CPPclang++18.1.3	Success	32,282
Aug 11, 2025 15:56	Ashish Ahuja	CPPg++13.3.0	Success	117,493
Aug 11, 2025 11:58	ndren	RUSTrust-1.89.0	Success	484,414
Aug 11, 2025 11:51	ndren	RUSTrust-1.89.0	Success	468,729
Aug 11, 2025 11:44	ndren	CPPg++13.3.0	Success	60,926
Aug 11, 2025 11:42	ndren	RUSTrust-1.89.0	Success	445,304

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