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 23:56

Mikołaj Uzarski

Score: 5,501

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 20, 2026 00:02	5,419	68,640,721	40,983,000	3,998,000	2,428,928
2	Feb 20, 2026 00:02	5,421	67,516,220	38,997,000	5,999,000	2,441,216
3	Feb 19, 2026 23:56	5,432	67,931,833	40,074,000	5,009,000	2,449,408
4	Feb 20, 2026 00:57	5,446	71,397,533	37,168,000	8,036,000	2,412,544
5	Feb 20, 2026 00:12	5,447	68,112,823	41,195,000	4,019,000	2,469,888
6	Feb 20, 2026 00:02	5,457	73,056,722	39,254,000	6,039,000	2,449,408
7	Feb 19, 2026 23:56	5,464	75,443,394	38,300,000	7,055,000	2,293,760
8	Feb 20, 2026 16:24	5,465	71,057,481	40,320,000	5,040,000	2,433,024
9	Feb 20, 2026 16:24	5,468	68,369,253	38,328,000	7,060,000	2,424,832
10	Feb 20, 2026 01:21	5,478	66,267,690	38,398,000	7,073,000	2,293,760
11	Feb 19, 2026 23:56	5,478	65,464,236	38,392,000	7,072,000	2,437,120
12	Feb 19, 2026 23:56	5,485	68,280,367	40,471,000	5,058,000	2,281,472
13	Feb 19, 2026 23:56	5,485	72,311,837	40,470,000	5,058,000	2,490,368
14	Feb 20, 2026 01:25	5,489	70,372,897	39,481,000	6,074,000	2,285,568
15	Feb 20, 2026 00:12	5,490	72,222,915	39,489,000	6,075,000	2,473,984
16	Feb 20, 2026 00:02	5,501	72,019,333	41,602,000	4,058,000	2,387,968
17	Feb 19, 2026 23:56	5,501	79,000,137	41,604,000	4,058,000	2,445,312
18	Feb 20, 2026 00:57	5,516	72,367,348	38,814,000	6,966,000	2,469,888
19	Feb 20, 2026 00:57	5,522	74,541,010	38,856,000	6,974,000	2,355,200
20	Feb 20, 2026 00:02	5,526	68,854,369	38,887,000	6,979,000	2,355,200
21	Feb 20, 2026 00:02	5,527	68,140,044	38,894,000	6,981,000	2,420,736
22	Feb 19, 2026 23:56	5,527	74,929,450	39,888,000	5,983,000	2,404,352
23	Feb 19, 2026 23:56	5,531	72,089,664	38,921,000	6,985,000	2,428,928
24	Feb 20, 2026 00:02	5,532	81,296,902	38,929,000	6,987,000	2,416,640
25	Feb 20, 2026 01:25	5,538	69,727,641	38,971,000	6,994,000	2,445,312
26	Feb 20, 2026 01:25	5,557	69,648,645	39,107,000	7,019,000	2,400,256
27	Feb 20, 2026 00:02	5,558	70,700,096	39,111,000	7,020,000	2,453,504
28	Feb 20, 2026 00:02	5,563	70,502,421	40,153,000	6,023,000	2,408,448
29	Feb 20, 2026 16:24	5,568	79,529,323	39,180,000	7,032,000	2,396,160
30	Feb 20, 2026 01:21	5,604	75,829,347	39,437,000	7,078,000	2,396,160
31	Feb 20, 2026 01:21	5,633	76,679,267	40,786,000	5,968,000	2,322,432
32	Feb 20, 2026 00:12	5,639	76,316,993	39,831,000	6,970,000	2,445,312
33	Feb 19, 2026 23:56	5,640	76,948,797	39,844,000	6,972,000	2,445,312

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