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 listApr 13, 2026 20:37

Yuriy LyfenkoScore: 4,316Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 18, 2026 15:41	4,278	58,221,170	34,493,000	1,014,000	2,482,176
2	Apr 13, 2026 20:37	4,279	60,182,202	34,502,000	1,014,000	2,465,792
3	Apr 13, 2026 20:37	4,281	57,931,659	34,520,000	1,015,000	2,306,048
4	Apr 18, 2026 15:41	4,283	57,119,997	34,531,000	1,015,000	2,469,888
5	Apr 18, 2026 15:42	4,284	57,981,308	34,541,000	1,015,000	2,473,984
6	Apr 13, 2026 20:37	4,285	55,164,222	34,547,000	1,016,000	2,473,984
7	Apr 18, 2026 15:42	4,286	64,131,758	34,554,000	1,016,000	2,478,080
8	Apr 13, 2026 20:37	4,286	60,112,145	34,560,000	1,016,000	2,535,424
9	Apr 18, 2026 15:41	4,287	60,003,224	34,568,000	1,016,000	2,273,280
10	Apr 18, 2026 15:42	4,288	65,429,717	34,571,000	1,016,000	2,535,424
11	Apr 13, 2026 20:37	4,288	62,729,506	34,573,000	1,016,000	2,473,984
12	Apr 18, 2026 15:41	4,288	60,889,488	34,574,000	1,016,000	2,535,424
13	Apr 13, 2026 20:37	4,289	60,490,310	34,585,000	1,017,000	2,478,080
14	Apr 13, 2026 20:37	4,290	61,431,649	34,589,000	1,017,000	2,535,424
15	Apr 18, 2026 15:41	4,291	60,134,603	34,598,000	1,017,000	2,535,424
16	Apr 18, 2026 15:42	4,292	56,905,166	33,648,000	1,979,000	2,273,280
17	Apr 18, 2026 15:41	4,293	59,818,779	34,611,000	1,017,000	2,310,144
18	Apr 18, 2026 15:41	4,297	64,356,953	34,649,000	1,019,000	2,469,888
19	Apr 18, 2026 15:42	4,298	67,335,464	34,656,000	1,019,000	2,535,424
20	Apr 13, 2026 20:37	4,298	59,644,874	34,658,000	1,019,000	2,535,424
21	Apr 18, 2026 15:42	4,300	66,088,949	34,669,000	1,019,000	2,535,424
22	Apr 18, 2026 15:42	4,303	62,596,792	34,692,000	1,020,000	2,469,888
23	Apr 18, 2026 15:42	4,316	59,650,095	33,830,000	1,990,000	2,535,424
24	Apr 18, 2026 15:41	4,317	63,332,160	33,844,000	1,990,000	2,473,984
25	Apr 13, 2026 20:37	4,317	65,892,222	33,842,000	1,990,000	2,535,424
26	Apr 13, 2026 20:37	4,318	60,860,692	34,843,000	995,000	2,535,424
27	Apr 13, 2026 20:37	4,318	66,733,516	33,847,000	1,991,000	2,535,424
28	Apr 18, 2026 15:41	4,318	63,815,299	35,837,000	0	2,535,424
29	Apr 18, 2026 15:42	4,318	62,361,421	33,851,000	1,991,000	2,469,888
30	Apr 13, 2026 20:37	4,318	65,058,341	33,852,000	1,991,000	2,535,424
31	Apr 18, 2026 15:42	4,318	66,186,548	33,851,000	1,991,000	2,535,424
32	Apr 13, 2026 20:37	4,318	58,421,316	33,851,000	1,991,000	2,535,424
33	Apr 18, 2026 15:42	4,319	62,697,425	34,852,000	995,000	2,306,048
34	Apr 13, 2026 20:37	4,319	66,843,181	34,850,000	995,000	2,478,080
35	Apr 18, 2026 15:42	4,319	60,383,202	34,854,000	995,000	2,473,984
36	Apr 18, 2026 15:42	4,319	60,060,004	33,857,000	1,991,000	2,473,984
37	Apr 18, 2026 15:41	4,319	65,272,438	33,855,000	1,991,000	2,482,176
38	Apr 13, 2026 20:37	4,323	61,069,401	33,892,000	1,993,000	2,473,984
39	Apr 13, 2026 20:37	4,323	60,778,341	33,891,000	1,993,000	2,461,696
40	Apr 18, 2026 15:42	4,323	60,084,871	33,889,000	1,993,000	2,465,792
41	Apr 13, 2026 20:37	4,324	55,473,990	33,893,000	1,993,000	2,473,984
42	Apr 18, 2026 15:42	4,327	63,552,537	33,922,000	1,995,000	2,301,952
43	Apr 13, 2026 20:37	4,330	64,101,870	33,942,000	1,996,000	2,465,792
44	Apr 18, 2026 15:41	4,333	61,083,566	34,969,000	999,000	2,478,080
45	Apr 18, 2026 15:41	4,334	59,860,301	33,976,000	1,998,000	2,473,984

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