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.

Back to listJan 2, 2026 16:46

Josu San Martin

Score: 5,939

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 2, 2026 16:44	5,743	77,669,084	47,669,000	0	2,371,584
2	Jan 2, 2026 16:59	5,744	77,681,107	46,659,000	1,014,000	2,363,392
3	Jan 2, 2026 16:58	5,759	73,954,458	45,806,000	1,991,000	2,363,392
4	Jan 2, 2026 16:47	5,763	73,717,002	45,838,000	1,992,000	2,289,664
5	Jan 2, 2026 16:44	5,777	71,481,319	45,953,000	1,997,000	2,281,472
6	Jan 2, 2026 16:44	5,781	73,668,845	45,985,000	1,999,000	2,281,472
7	Jan 2, 2026 16:59	5,794	78,647,124	47,090,000	1,001,000	2,367,488
8	Jan 2, 2026 16:58	5,836	74,971,107	48,436,000	0	2,293,760
9	Jan 2, 2026 16:58	5,836	75,157,523	47,429,000	1,009,000	2,293,760
10	Jan 2, 2026 16:47	5,853	78,450,537	47,568,000	1,012,000	2,293,760
11	Jan 2, 2026 16:47	5,857	75,483,807	47,603,000	1,012,000	2,289,664
12	Jan 2, 2026 16:44	5,879	77,401,454	46,802,000	1,991,000	2,363,392
13	Jan 2, 2026 16:58	5,881	77,525,809	47,819,000	996,000	2,293,760
14	Jan 2, 2026 16:58	5,881	79,497,902	47,815,000	996,000	2,371,584
15	Jan 2, 2026 16:46	5,887	73,907,541	47,847,000	1,018,000	2,371,584
16	Jan 2, 2026 16:44	5,899	75,404,986	46,967,000	1,998,000	2,359,296
17	Jan 2, 2026 16:47	5,899	75,989,016	46,961,000	1,998,000	2,371,584
18	Jan 2, 2026 16:59	5,900	73,313,895	46,968,000	1,998,000	2,363,392
19	Jan 2, 2026 16:46	5,901	76,853,683	46,978,000	1,999,000	2,281,472
20	Jan 2, 2026 16:59	5,907	77,913,557	48,032,000	1,000,000	2,375,680
21	Jan 2, 2026 16:46	5,908	73,241,208	48,039,000	1,000,000	2,293,760
22	Jan 2, 2026 16:59	5,917	72,911,173	48,112,000	1,002,000	2,363,392
23	Jan 2, 2026 16:58	5,923	70,706,466	46,155,000	3,010,000	2,449,408
24	Jan 2, 2026 16:47	5,930	70,137,187	47,211,000	2,008,000	2,379,776
25	Jan 2, 2026 16:58	5,939	74,488,944	48,291,000	1,006,000	2,367,488
26	Jan 2, 2026 16:44	5,945	72,544,856	49,342,000	0	2,293,760
27	Jan 2, 2026 16:46	5,949	72,743,793	49,377,000	0	2,367,488
28	Jan 2, 2026 16:46	5,951	71,435,229	48,388,000	1,008,000	2,281,472
29	Jan 2, 2026 16:58	5,952	71,708,556	47,383,000	2,016,000	2,285,568
30	Jan 2, 2026 16:44	5,953	70,547,327	48,406,000	1,008,000	2,293,760
31	Jan 2, 2026 16:47	5,959	71,736,184	48,450,000	1,009,000	2,293,760
32	Jan 2, 2026 16:44	5,959	72,905,050	49,457,000	0	2,293,760
33	Jan 2, 2026 16:46	5,961	69,380,942	49,474,000	0	2,293,760
34	Jan 2, 2026 16:44	5,970	77,563,255	49,555,000	0	2,371,584
35	Jan 2, 2026 16:47	5,975	81,727,077	48,577,000	1,012,000	2,367,488
36	Jan 2, 2026 16:58	6,002	78,561,160	48,821,000	996,000	2,285,568
37	Jan 2, 2026 16:59	6,003	73,608,032	48,830,000	996,000	2,379,776
38	Jan 2, 2026 16:47	6,006	80,878,411	47,853,000	1,993,000	2,363,392
39	Jan 2, 2026 16:44	6,009	74,419,930	48,855,000	1,017,000	2,293,760
40	Jan 2, 2026 16:58	6,028	75,553,601	48,030,000	2,001,000	2,359,296
41	Jan 2, 2026 16:47	6,035	80,108,290	48,087,000	2,003,000	2,293,760
42	Jan 2, 2026 16:47	6,037	76,342,069	48,106,000	2,004,000	2,363,392
43	Jan 2, 2026 16:44	6,048	77,085,980	48,193,000	2,008,000	2,351,104
44	Jan 2, 2026 16:47	6,076	73,471,840	49,426,000	1,008,000	2,293,760
45	Jan 2, 2026 16:58	6,127	75,902,281	49,858,000	997,000	2,289,664
46	Jan 2, 2026 16:47	6,127	75,266,699	49,860,000	997,000	2,293,760
47	Jan 2, 2026 16:44	6,131	75,530,908	48,893,000	1,995,000	2,293,760
48	Jan 2, 2026 16:58	6,150	78,157,055	49,046,000	2,001,000	2,363,392

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