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 14:41	4,906	65,577,059	39,701,000	1,017,000	2,396,160
2	Jun 4, 2024 14:41	4,917	66,296,095	40,809,000	0	2,273,280
3	Jun 4, 2024 14:41	4,918	68,091,055	38,825,000	1,991,000	2,273,280
4	Jun 4, 2024 14:41	4,920	63,235,778	38,841,000	1,991,000	2,400,256
5	Jun 4, 2024 14:41	4,920	68,188,277	38,847,000	1,992,000	2,273,280
6	Jun 4, 2024 14:41	4,920	66,662,315	40,838,000	0	2,273,280
7	Jun 4, 2024 14:41	4,921	62,085,598	38,850,000	1,992,000	2,273,280
8	Jun 4, 2024 14:41	4,921	66,068,231	38,852,000	1,992,000	2,400,256
9	Jun 4, 2024 14:41	4,921	66,593,181	38,855,000	1,992,000	2,273,280
10	Jun 4, 2024 14:41	4,921	63,213,980	39,848,000	996,000	2,273,280
11	Jun 4, 2024 14:41	4,922	63,110,039	38,862,000	1,992,000	2,408,448
12	Jun 4, 2024 14:41	4,922	63,693,219	38,860,000	1,992,000	2,273,280
13	Jun 4, 2024 14:41	4,922	71,601,041	38,857,000	1,992,000	2,273,280
14	Jun 4, 2024 14:41	4,923	68,713,251	38,871,000	1,993,000	2,273,280
15	Jun 4, 2024 14:41	4,924	67,874,582	38,878,000	1,993,000	2,273,280
16	Jun 4, 2024 14:41	4,924	66,071,189	39,871,000	996,000	2,404,352
17	Jun 4, 2024 14:41	4,926	66,125,821	38,895,000	1,994,000	2,273,280
18	Jun 4, 2024 14:41	4,926	66,877,362	38,889,000	1,994,000	2,404,352
19	Jun 4, 2024 14:41	4,927	62,434,411	38,900,000	1,994,000	2,400,256
20	Jun 4, 2024 14:41	4,927	67,350,743	39,901,000	997,000	2,273,280
21	Jun 4, 2024 14:41	4,928	62,439,336	39,902,000	997,000	2,273,280
22	Jun 4, 2024 14:41	4,932	66,715,323	39,935,000	998,000	2,396,160
23	Jun 4, 2024 14:41	4,934	62,923,142	39,953,000	998,000	2,404,352
24	Jun 4, 2024 14:41	4,936	63,367,913	39,971,000	999,000	2,273,280
25	Jun 4, 2024 14:41	4,945	66,298,308	40,040,000	1,001,000	2,404,352
26	Jun 4, 2024 14:41	5,001	66,044,177	40,496,000	1,012,000	2,396,160
27	Jun 4, 2024 14:41	5,072	68,611,828	40,091,000	2,004,000	2,273,280
28	Jun 4, 2024 14:41	5,101	101,817,980	42,339,955	0	2,285,568
29	Jun 4, 2024 14:41	5,105	112,186,523	42,371,037	0	2,277,376
30	Jun 4, 2024 14:41	5,106	102,977,704	42,379,073	0	2,285,568
31	Jun 4, 2024 14:41	5,107	111,375,445	42,388,765	0	2,285,568
32	Jun 4, 2024 14:41	5,109	107,076,115	42,401,047	0	2,293,760
33	Jun 4, 2024 14:41	5,110	105,892,564	42,411,398	0	2,285,568
34	Jun 4, 2024 14:41	5,111	128,259,455	42,420,212	0	2,293,760
35	Jun 4, 2024 14:41	5,111	110,379,057	42,418,733	0	2,285,568
36	Jun 4, 2024 14:41	5,113	102,264,213	42,435,138	0	2,285,568
37	Jun 4, 2024 14:41	5,115	104,133,159	42,455,685	0	2,277,376
38	Jun 4, 2024 14:41	5,120	116,357,295	42,499,902	0	2,289,664
39	Jun 4, 2024 14:41	5,140	114,224,487	42,662,977	0	2,285,568
40	Jun 4, 2024 14:41	5,829	75,281,596	47,373,000	1,007,000	2,469,888
41	Jun 4, 2024 14:41	5,836	70,888,050	47,428,000	1,009,000	2,260,992
42	Jun 4, 2024 14:41	5,840	71,108,477	47,460,000	1,009,000	2,273,280
43	Jun 4, 2024 14:41	5,841	74,796,222	47,470,000	1,010,000	2,273,280
44	Jun 4, 2024 14:41	5,844	70,054,562	48,503,000	0	2,404,352
45	Jun 4, 2024 14:41	5,852	78,830,740	47,558,000	1,011,000	2,273,280
46	Jun 4, 2024 14:41	5,859	74,907,601	47,617,000	1,013,000	2,392,064
47	Jun 4, 2024 14:41	5,881	78,763,048	47,820,000	996,000	2,404,352
48	Jun 4, 2024 14:41	5,884	75,094,553	47,841,000	996,000	2,273,280

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