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 05:38	5,198	65,449,922	41,135,000	2,006,000	2,400,256
2	Jun 4, 2024 05:38	5,199	68,552,765	42,150,000	1,003,000	2,396,160
3	Jun 4, 2024 05:38	5,200	69,979,618	42,156,000	1,003,000	2,400,256
4	Jun 4, 2024 05:38	5,201	69,614,915	42,165,000	1,003,000	2,273,280
5	Jun 4, 2024 05:38	5,204	65,700,223	41,187,000	2,009,000	2,392,064
6	Jun 4, 2024 05:38	5,212	65,581,766	42,255,000	1,006,000	2,396,160
7	Jun 4, 2024 05:38	5,213	67,679,393	41,259,000	2,012,000	2,273,280
8	Jun 4, 2024 05:38	5,214	65,482,346	42,270,000	1,006,000	2,273,280
9	Jun 4, 2024 05:38	5,215	67,862,132	41,268,000	2,013,000	2,273,280
10	Jun 4, 2024 05:38	5,217	67,124,265	42,295,000	1,007,000	2,514,944
11	Jun 4, 2024 05:38	5,219	66,536,555	42,313,000	1,007,000	2,392,064
12	Jun 4, 2024 05:38	5,219	67,605,512	41,305,000	2,014,000	2,400,256
13	Jun 4, 2024 05:38	5,221	72,421,266	43,333,000	0	2,273,280
14	Jun 4, 2024 05:38	5,226	70,304,421	43,372,000	0	2,400,256
15	Jun 4, 2024 05:38	5,229	70,242,866	42,395,000	1,009,000	2,273,280
16	Jun 4, 2024 05:38	5,229	64,780,540	42,390,000	1,009,000	2,273,280
17	Jun 4, 2024 05:38	5,234	70,040,481	42,429,000	1,010,000	2,392,064
18	Jun 4, 2024 05:38	5,235	67,534,071	43,454,000	0	2,273,280
19	Jun 4, 2024 05:38	5,235	67,779,229	41,479,000	1,975,000	2,273,280
20	Jun 4, 2024 05:38	5,238	64,305,158	42,464,000	1,011,000	2,396,160
21	Jun 4, 2024 05:38	5,239	71,095,543	42,472,000	1,011,000	2,404,352
22	Jun 4, 2024 05:38	5,239	67,153,698	42,476,000	1,011,000	2,273,280
23	Jun 4, 2024 05:38	5,240	71,642,527	43,489,000	0	2,273,280
24	Jun 4, 2024 05:38	5,244	72,180,324	43,528,000	0	2,273,280
25	Jun 4, 2024 05:38	5,245	67,991,177	42,523,000	1,012,000	2,396,160
26	Jun 4, 2024 05:38	5,246	65,291,773	42,528,000	1,012,000	2,400,256
27	Jun 4, 2024 05:38	5,263	76,371,742	42,664,000	1,015,000	2,519,040
28	Jun 4, 2024 05:38	5,411	126,693,382	44,913,976	0	2,281,472
29	Jun 4, 2024 05:38	5,437	108,595,973	45,126,902	0	2,281,472
30	Jun 4, 2024 05:38	5,438	105,188,164	45,139,133	0	2,273,280
31	Jun 4, 2024 05:38	5,459	113,421,665	45,311,738	0	2,285,568
32	Jun 4, 2024 05:38	5,485	115,692,647	45,525,149	0	2,289,664
33	Jun 4, 2024 05:38	5,494	115,852,843	45,598,040	0	2,289,664
34	Jun 4, 2024 05:38	5,510	107,171,167	45,730,228	0	2,289,664
35	Jun 4, 2024 05:38	5,511	101,512,061	45,742,892	0	2,281,472
36	Jun 4, 2024 05:38	5,512	110,700,212	45,751,927	0	2,293,760
37	Jun 4, 2024 05:38	5,525	108,143,407	45,856,195	0	2,281,472
38	Jun 4, 2024 05:38	5,530	115,739,064	45,902,915	0	2,289,664
39	Jun 4, 2024 05:38	5,569	133,648,011	46,225,615	0	2,285,568
40	Jun 4, 2024 05:38	6,248	76,470,550	49,861,000	1,994,000	2,273,280
41	Jun 4, 2024 05:38	6,261	71,489,972	50,965,000	999,000	2,273,280
42	Jun 4, 2024 05:38	6,270	74,094,364	50,040,000	2,001,000	2,400,256
43	Jun 4, 2024 05:38	6,285	74,982,621	50,160,000	2,006,000	2,400,256
44	Jun 4, 2024 05:38	6,301	73,308,187	52,298,000	0	2,273,280
45	Jun 4, 2024 05:38	6,368	79,172,305	50,861,000	1,994,000	2,273,280
46	Jun 4, 2024 05:38	6,384	75,005,799	51,987,000	999,000	2,383,872
47	Jun 4, 2024 05:38	6,396	78,515,667	51,080,000	2,003,000	2,400,256
48	Jun 4, 2024 05:38	6,407	74,662,539	52,174,000	1,003,000	2,269,184

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