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.

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 4, 2024 07:12	5,159	73,533,550	40,829,000	1,991,000	2,273,280
2	Jun 4, 2024 07:12	5,163	73,134,735	40,864,000	1,993,000	2,392,064
3	Jun 4, 2024 07:12	5,165	73,659,479	40,878,000	1,994,000	2,392,064
4	Jun 4, 2024 07:12	5,168	69,183,013	40,903,000	1,995,000	2,392,064
5	Jun 4, 2024 07:12	5,169	67,653,110	40,905,000	1,995,000	2,392,064
6	Jun 4, 2024 07:12	5,170	68,893,512	41,914,000	997,000	2,396,160
7	Jun 4, 2024 07:12	5,171	66,072,698	41,925,000	998,000	2,273,280
8	Jun 4, 2024 07:12	5,174	66,658,159	41,944,000	998,000	2,273,280
9	Jun 4, 2024 07:12	5,175	65,833,114	40,956,000	1,997,000	2,273,280
10	Jun 4, 2024 07:12	5,176	69,198,585	41,965,000	999,000	2,396,160
11	Jun 4, 2024 07:12	5,176	70,593,087	41,959,000	999,000	2,400,256
12	Jun 4, 2024 07:12	5,176	67,175,810	40,963,000	1,998,000	2,273,280
13	Jun 4, 2024 07:12	5,177	71,005,520	41,969,000	999,000	2,273,280
14	Jun 4, 2024 07:12	5,177	68,051,503	40,968,000	1,998,000	2,404,352
15	Jun 4, 2024 07:12	5,177	69,350,806	41,974,000	999,000	2,273,280
16	Jun 4, 2024 07:12	5,178	65,237,162	41,980,000	999,000	2,510,848
17	Jun 4, 2024 07:12	5,180	72,677,129	40,994,000	1,999,000	2,400,256
18	Jun 4, 2024 07:12	5,187	66,416,091	42,053,000	1,001,000	2,273,280
19	Jun 4, 2024 07:12	5,187	71,637,265	42,054,000	1,001,000	2,400,256
20	Jun 4, 2024 07:12	5,187	68,745,619	43,049,000	0	2,273,280
21	Jun 4, 2024 07:12	5,190	69,254,176	41,074,000	2,003,000	2,400,256
22	Jun 4, 2024 07:12	5,192	70,643,039	42,092,000	1,002,000	2,273,280
23	Jun 4, 2024 07:12	5,195	63,146,547	41,117,000	2,005,000	2,519,040
24	Jun 4, 2024 07:12	5,195	71,190,563	41,112,000	2,005,000	2,396,160
25	Jun 4, 2024 07:12	5,202	68,817,709	42,172,000	1,004,000	2,273,280
26	Jun 4, 2024 07:12	5,210	67,143,001	41,230,000	2,011,000	2,273,280
27	Jun 4, 2024 07:12	5,216	65,874,732	43,295,000	0	2,400,256
28	Jun 4, 2024 07:12	5,223	65,873,050	43,348,000	0	2,273,280
29	Jun 4, 2024 07:12	5,224	68,320,437	41,346,000	2,016,000	2,494,464
30	Jun 4, 2024 07:12	5,245	68,081,786	42,541,000	989,000	2,273,280
31	Jun 4, 2024 07:12	5,256	73,540,455	43,625,000	0	2,273,280
32	Jun 4, 2024 07:12	5,309	72,671,481	42,060,000	2,002,000	2,273,280
33	Jun 4, 2024 07:12	5,324	68,103,305	43,189,000	1,004,000	2,400,256
34	Jun 4, 2024 07:12	5,389	115,486,215	44,730,029	0	2,277,376
35	Jun 4, 2024 07:12	5,391	111,600,702	44,742,171	0	2,281,472
36	Jun 4, 2024 07:12	5,392	111,639,719	44,750,235	0	2,285,568
37	Jun 4, 2024 07:12	5,394	119,496,399	44,768,383	0	2,281,472
38	Jun 4, 2024 07:12	5,394	114,774,832	44,771,958	0	2,281,472
39	Jun 4, 2024 07:12	5,394	120,888,312	44,766,077	0	2,289,664
40	Jun 4, 2024 07:12	5,397	101,752,119	44,791,038	0	2,285,568
41	Jun 4, 2024 07:12	5,404	120,174,045	44,849,511	0	2,289,664
42	Jun 4, 2024 07:12	5,406	104,304,063	44,866,013	0	2,285,568
43	Jun 4, 2024 07:12	5,411	98,057,006	44,909,292	0	2,293,760
44	Jun 4, 2024 07:12	5,427	105,386,881	45,047,831	0	2,289,664
45	Jun 4, 2024 07:12	5,468	136,790,320	45,388,277	0	2,281,472

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