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 listFeb 19, 2026 20:46

Mikołaj Uzarski

Score: 5,809

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 19, 2026 21:10	5,703	72,711,022	41,290,000	6,042,000	2,465,792
2	Feb 19, 2026 20:46	5,703	75,047,729	41,294,000	6,043,000	2,461,696
3	Feb 19, 2026 20:55	5,715	72,728,945	40,373,000	7,065,000	2,437,120
4	Feb 19, 2026 20:46	5,719	73,284,338	42,417,000	5,049,000	2,469,888
5	Feb 19, 2026 21:10	5,758	75,082,384	42,816,000	4,978,000	2,490,368
6	Feb 19, 2026 20:46	5,760	76,489,060	42,825,000	4,979,000	2,510,848
7	Feb 19, 2026 21:07	5,761	77,671,053	40,842,000	6,973,000	2,510,848
8	Feb 19, 2026 20:55	5,762	73,993,479	43,836,000	3,985,000	2,428,928
9	Feb 19, 2026 21:10	5,766	71,649,964	41,874,000	5,982,000	2,392,064
10	Feb 19, 2026 21:10	5,772	71,542,351	42,920,000	4,990,000	2,383,872
11	Feb 19, 2026 21:07	5,787	72,867,705	42,030,000	6,004,000	2,433,024
12	Feb 19, 2026 21:07	5,796	74,597,735	44,095,000	4,008,000	2,289,664
13	Feb 19, 2026 21:10	5,796	69,198,992	43,097,000	5,011,000	2,506,752
14	Feb 19, 2026 20:46	5,801	73,032,893	42,127,000	6,018,000	2,437,120
15	Feb 19, 2026 21:10	5,802	71,229,225	44,144,000	4,013,000	2,482,176
16	Feb 19, 2026 20:55	5,805	80,913,223	41,157,000	7,026,000	2,437,120
17	Feb 19, 2026 21:14	5,809	76,020,468	42,189,000	6,027,000	2,473,984
18	Feb 19, 2026 21:14	5,811	73,926,103	45,218,000	3,014,000	2,400,256
19	Feb 19, 2026 21:10	5,817	76,498,934	42,249,000	6,035,000	2,502,656
20	Feb 19, 2026 21:14	5,817	73,221,267	44,260,000	4,023,000	2,396,160
21	Feb 19, 2026 21:14	5,817	68,877,290	43,252,000	5,029,000	2,375,680
22	Feb 19, 2026 20:46	5,824	68,320,054	42,294,000	6,042,000	2,453,504
23	Feb 19, 2026 21:14	5,825	68,962,105	44,317,000	4,028,000	2,510,848
24	Feb 19, 2026 21:07	5,828	74,201,414	42,323,000	6,046,000	2,387,968
25	Feb 19, 2026 20:46	5,835	76,037,472	42,380,000	6,054,000	2,281,472
26	Feb 19, 2026 20:46	5,853	79,831,512	43,516,000	5,060,000	2,420,736
27	Feb 19, 2026 21:07	5,878	74,860,437	42,817,000	5,974,000	2,387,968
28	Feb 19, 2026 21:10	5,879	74,559,943	43,814,000	4,978,000	2,506,752
29	Feb 19, 2026 20:46	5,882	77,439,733	42,846,000	5,978,000	2,416,640
30	Feb 19, 2026 21:10	5,884	77,790,859	40,865,000	7,973,000	2,437,120
31	Feb 19, 2026 20:46	5,906	76,622,324	43,016,000	6,002,000	2,281,472
32	Feb 19, 2026 21:14	5,909	73,844,104	45,038,000	4,003,000	2,281,472
33	Feb 19, 2026 21:07	5,961	79,463,275	43,421,000	6,058,000	2,441,216

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