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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caandoScore: 5,129Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 4, 2026 17:24	5,096	70,806,200	40,280,000	2,014,000	2,289,664
2	Mar 4, 2026 17:24	5,098	68,896,004	40,296,000	2,014,000	2,289,664
3	Mar 4, 2026 17:12	5,105	70,945,309	40,353,000	2,017,000	2,289,664
4	Mar 4, 2026 17:16	5,108	68,388,651	40,378,000	2,018,000	2,363,392
5	Mar 4, 2026 17:16	5,108	65,232,141	41,389,000	1,009,000	2,289,664
6	Mar 4, 2026 17:25	5,110	69,711,309	39,386,000	3,029,000	2,523,136
7	Mar 4, 2026 17:16	5,110	73,269,017	40,396,000	2,019,000	2,289,664
8	Mar 4, 2026 17:09	5,111	63,295,353	42,425,000	0	2,523,136
9	Mar 4, 2026 17:16	5,112	64,436,693	39,398,000	3,030,000	2,510,848
10	Mar 4, 2026 17:16	5,112	65,640,378	39,398,000	3,030,000	2,289,664
11	Mar 4, 2026 17:25	5,114	67,851,109	40,427,000	2,021,000	2,289,664
12	Mar 4, 2026 17:09	5,116	70,323,132	39,430,000	3,033,000	2,289,664
13	Mar 4, 2026 17:12	5,117	64,313,091	41,456,000	1,011,000	2,289,664
14	Mar 4, 2026 17:23	5,119	72,693,796	41,475,000	1,011,000	2,289,664
15	Mar 4, 2026 17:16	5,121	64,709,672	41,491,000	1,011,000	2,359,296
16	Mar 4, 2026 17:23	5,121	65,033,161	41,496,000	1,012,000	2,289,664
17	Mar 4, 2026 17:16	5,123	64,531,017	40,500,000	2,025,000	2,519,040
18	Mar 4, 2026 17:12	5,123	66,265,107	42,521,000	0	2,514,944
19	Mar 4, 2026 17:12	5,126	66,874,676	39,508,000	3,039,000	2,289,664
20	Mar 4, 2026 17:12	5,127	69,251,577	41,541,000	1,013,000	2,285,568
21	Mar 4, 2026 17:24	5,128	66,194,137	41,551,000	1,013,000	2,285,568
22	Mar 4, 2026 17:16	5,128	69,846,627	40,533,000	2,026,000	2,289,664
23	Mar 4, 2026 17:23	5,129	75,387,440	41,557,000	1,013,000	2,285,568
24	Mar 4, 2026 17:09	5,129	70,850,580	41,560,000	1,013,000	2,285,568
25	Mar 4, 2026 17:24	5,130	71,386,795	41,567,000	1,013,000	2,289,664
26	Mar 4, 2026 17:23	5,132	71,358,075	41,578,000	1,014,000	2,285,568
27	Mar 4, 2026 17:23	5,133	71,504,677	41,589,000	1,014,000	2,265,088
28	Mar 4, 2026 17:25	5,133	73,094,986	41,586,000	1,014,000	2,519,040
29	Mar 4, 2026 17:23	5,134	70,746,205	41,595,000	1,014,000	2,519,040
30	Mar 4, 2026 17:12	5,135	74,070,287	42,623,000	0	2,519,040
31	Mar 4, 2026 17:16	5,135	68,567,735	40,595,000	2,029,000	2,289,664
32	Mar 4, 2026 17:24	5,135	73,202,214	41,608,000	1,014,000	2,285,568
33	Mar 4, 2026 17:25	5,136	71,007,367	41,614,000	1,014,000	2,285,568
34	Mar 4, 2026 17:25	5,137	69,971,485	42,634,000	0	2,285,568
35	Mar 4, 2026 17:09	5,157	78,285,016	39,817,000	2,986,000	2,289,664
36	Mar 4, 2026 17:24	5,161	68,693,065	41,842,000	996,000	2,363,392
37	Mar 4, 2026 17:25	5,161	70,299,553	39,846,000	2,988,000	2,285,568
38	Mar 4, 2026 17:09	5,162	71,523,914	41,851,000	996,000	2,351,104
39	Mar 4, 2026 17:09	5,307	73,612,999	41,049,000	3,003,000	2,269,184
40	Mar 8, 2026 15:27	7,056	85,788,370	57,558,000	1,009,000	2,510,848
41	Mar 8, 2026 15:27	7,066	90,457,333	57,633,000	1,011,000	2,519,040
42	Mar 8, 2026 15:27	7,127	85,283,725	57,149,000	2,005,000	2,285,568
43	Mar 8, 2026 15:27	7,148	86,859,030	57,315,000	2,011,000	2,523,136
44	Mar 8, 2026 15:27	7,211	92,745,544	57,860,000	1,995,000	2,285,568
45	Mar 8, 2026 15:27	7,711	89,079,586	62,000,000	2,000,000	2,514,944

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