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
Sep 23, 2026 10:16	Kevin Heavey	ZIG0.15.1	Success	3,235+232.41 RP
Sep 23, 2026 10:15	Kevin Heavey	RUSTrust-1.95.0	Success	3,288+176.85 RP
Sep 23, 2026 09:04	Kevin Heavey	CPPg++14.2.0	Success	3,250
Sep 23, 2026 09:04	Kevin Heavey	CPPg++14.2.0	Success	3,254
Sep 23, 2026 09:02	Kevin Heavey	CPPg++14.2.0	Success	3,229+7.66 RP
Sep 23, 2026 08:45	Kevin Heavey	CPPg++14.2.0	Success	3,233
Sep 23, 2026 08:45	Kevin Heavey	CPPg++14.2.0	Success	3,235
Sep 23, 2026 08:45	Kevin Heavey	CPPg++14.2.0	Success	3,269
Sep 23, 2026 08:44	Kevin Heavey	CPPg++14.2.0	Success	3,263
Sep 23, 2026 08:44	Kevin Heavey	CPPg++14.2.0	Success	3,284
Sep 23, 2026 08:34	Kevin Heavey	CPPg++14.2.0	Success	3,233+13.36 RP
Sep 23, 2026 08:33	Kevin Heavey	CPPg++14.2.0	Success	3,245
Sep 23, 2026 08:22	Kevin Heavey	CPPg++14.2.0	Success	3,240+137.62 RP
Sep 23, 2026 08:14	Kevin Heavey	CPPg++14.2.0	Success	3,352
Sep 23, 2026 08:14	Kevin Heavey	CPPg++14.2.0	Success	3,415
Sep 23, 2026 08:14	Kevin Heavey	CPPg++14.2.0	Success	3,355
Sep 23, 2026 08:14	Kevin Heavey	CPPg++14.2.0	Success	3,373
Sep 23, 2026 08:10	Kevin Heavey	CPPg++14.2.0	Success	3,335
Sep 23, 2026 07:45	Kevin Heavey	CPPg++14.2.0	Success	3,347
Sep 23, 2026 07:45	Kevin Heavey	CPPg++14.2.0	Success	3,365
Sep 23, 2026 07:45	Kevin Heavey	CPPg++14.2.0	Success	3,355
Sep 23, 2026 07:44	Kevin Heavey	CPPg++14.2.0	Success	3,347
Sep 23, 2026 07:16	Kevin Heavey	CPPg++14.2.0	Success	3,350
Sep 23, 2026 07:16	Kevin Heavey	CPPg++14.2.0	Success	3,335
Sep 23, 2026 07:15	Kevin Heavey	CPPg++14.2.0	Success	3,344
Sep 23, 2026 07:15	Kevin Heavey	CPPg++14.2.0	Success	3,343
Sep 23, 2026 07:15	Kevin Heavey	CPPg++14.2.0	Success	3,346
Sep 23, 2026 07:15	Kevin Heavey	CPPg++14.2.0	Success	3,352
Sep 23, 2026 07:14	Kevin Heavey	CPPg++14.2.0	Success	3,334+11.65 RP
Sep 23, 2026 07:14	Kevin Heavey	CPPg++14.2.0	Success	3,395
Sep 23, 2026 07:10	Kevin Heavey	CPPg++14.2.0	Success	3,347+3.57 RP
Sep 23, 2026 00:41	Kevin Heavey	CPPg++14.2.0	Success	3,351+36.07 RP
Sep 23, 2026 00:37	Kevin Heavey	CPPg++14.2.0	Success	3,392+109.62 RP
Sep 22, 2026 18:45	stdkFeanor	CPPg++10.5.0	Success	36,911+97.19 RP
Sep 22, 2026 18:31	stdkFeanor	CPPg++10.5.0	Success	76,117
Sep 22, 2026 18:28	stdkFeanor	CPPg++10.5.0	Success	69,968
Sep 22, 2026 18:22	stdkFeanor	CPPg++10.5.0	Success	68,690
Sep 22, 2026 18:11	stdkFeanor	CPPg++10.5.0	Success	57,560+61.42 RP
Sep 22, 2026 18:10	stdkFeanor	CPPg++10.5.0	Success	89,040+112.31 RP
Sep 21, 2026 18:07	C21	CPPclang++18.1.3	Success	19,227
Sep 21, 2026 18:04	C21	CPPclang++18.1.3	Success	19,325
Sep 21, 2026 17:58	C21	CPPclang++20.1.2	Success	14,674
Sep 21, 2026 17:52	C21	CPPclang++20.1.2	Success	20,078
Sep 21, 2026 16:57	Genos0	CPPg++10.5.0	Success	60,660+2.18 RP
Sep 21, 2026 15:05	boop34	CPPg++14.2.0	Success	8,223+2.51 RP
Sep 20, 2026 00:02	Joshua Montross	CPPg++10.5.0	Success	8,941+11.02 RP
Sep 19, 2026 13:33	Andrew Epstein	CPPg++14.2.0	Success	125,343
Sep 19, 2026 13:27	Andrew Epstein	CPPg++14.2.0	Success	3,539
Sep 17, 2026 21:36	Victor Mercklé	CPPg++14.2.0	Success	5,297
Sep 17, 2026 17:27	C21	CPPclang++20.1.2	Success	13,120
Sep 17, 2026 17:25	Pranav M	CPPg++10.5.0	Success	89,067+112.28 RP
Sep 17, 2026 16:55	Andrew Epstein	CPPg++14.2.0	Success	3,452
Sep 17, 2026 16:42	Andrew Epstein	CPPg++14.2.0	Success	106,685
Sep 17, 2026 16:41	Andrew Epstein	CPPg++14.2.0	Success	9,916
Sep 17, 2026 16:41	Andrew Epstein	CPPg++14.2.0	Success	9,862
Sep 17, 2026 16:41	Andrew Epstein	CPPg++14.2.0	Success	9,898
Sep 17, 2026 16:41	Andrew Epstein	CPPg++14.2.0	Success	9,856
Sep 17, 2026 16:41	Andrew Epstein	CPPg++14.2.0	Success	9,806
Sep 17, 2026 16:34	Andrew Epstein	CPPg++14.2.0	Success	175,872
Sep 17, 2026 16:25	Andrew Epstein	CPPg++14.2.0	Success	9,777
Sep 17, 2026 16:25	Andrew Epstein	CPPg++14.2.0	Success	9,840
Sep 17, 2026 16:25	Andrew Epstein	CPPg++14.2.0	Success	147,536
Sep 17, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Success	4,155
Sep 17, 2026 16:07	Andrew Epstein	CPPg++14.2.0	Success	147,208
Sep 17, 2026 16:02	Andrew Epstein	CPPg++14.2.0	Success	169,060
Sep 17, 2026 15:13	Andrew Epstein	CPPg++14.2.0	Success	3,737
Sep 17, 2026 15:09	Andrew Epstein	CPPg++14.2.0	Success	141,946
Sep 17, 2026 15:06	Donald Lee	RUSTrust-1.95.0	Success	389,947+25.64 RP
Sep 17, 2026 15:04	Andrew Epstein	CPPg++14.2.0	Success	143,590
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	10,186
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	9,855
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	10,280
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	11,142
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	9,934
Sep 17, 2026 13:50	Andrew Epstein	CPPg++14.2.0	Success	16,279
Sep 17, 2026 13:33	Andrew Epstein	CPPg++14.2.0	Success	124,050
Sep 17, 2026 13:28	Andrew Epstein	CPPg++14.2.0	Success	16,264
Sep 17, 2026 13:28	Andrew Epstein	CPPg++14.2.0	Success	9,942
Sep 17, 2026 13:28	Andrew Epstein	CPPg++14.2.0	Success	9,913
Sep 17, 2026 13:15	Andrew Epstein	CPPg++14.2.0	Success	272,130
Sep 17, 2026 13:15	Andrew Epstein	CPPg++14.2.0	Success	263,012
Sep 17, 2026 09:22	eeby jeeby	CPPg++10.5.0	Success	21,349+313.69 RP
Sep 17, 2026 09:15	eeby jeeby	CPPg++10.5.0	Success	64,634+117.88 RP
Sep 17, 2026 03:51	Victor Mercklé	CPPg++14.2.0	Success	32,289
Sep 17, 2026 03:26	Andrew Epstein	CPPg++14.2.0	Success	100,049
Sep 17, 2026 03:23	Andrew Epstein	CPPg++14.2.0	Success	138,993
Sep 17, 2026 03:20	Andrew Epstein	CPPg++14.2.0	Success	104,279
Sep 17, 2026 03:18	Andrew Epstein	CPPg++14.2.0	Success	83,790
Sep 17, 2026 03:14	Victor Mercklé	CPPg++14.2.0	Success	27,643
Sep 17, 2026 03:11	Andrew Epstein	CPPg++14.2.0	Success	97,346
Sep 17, 2026 03:08	Andrew Epstein	CPPg++14.2.0	Success	50,254
Sep 17, 2026 03:07	Victor Mercklé	CPPg++14.2.0	Success	28,703
Sep 17, 2026 03:03	Andrew Epstein	CPPg++14.2.0	Success	133,094
Sep 17, 2026 03:00	Andrew Epstein	CPPg++14.2.0	Success	44,473
Sep 17, 2026 02:59	Andrew Epstein	CPPg++14.2.0	Success	3,440
Sep 17, 2026 02:58	Andrew Epstein	CPPg++14.2.0	Success	55,630
Sep 17, 2026 02:55	Andrew Epstein	CPPg++14.2.0	Success	44,472
Sep 17, 2026 02:51	Andrew Epstein	CPPg++14.2.0	Success	110,147
Sep 17, 2026 02:49	Andrew Epstein	CPPclang++20.1.2	Success	3,520
Sep 17, 2026 02:48	Andrew Epstein	CPPg++14.2.0	Success	85,803

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