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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matsuoka-601Error

Source Code

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Challenge History

Date	Challenger	Cost	Type	Status
Apr 27, 2026 10:35	wn	10.00	Recheck	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Apr 27, 2026 10:35	0	100,213,554	81,785,000	997,000	237,568	No answer to stdout. Died or killed?
2	Oct 23, 2024 08:44	3,847	59,763,666	29,935,000	1,995,000	2,424,832
3	Oct 9, 2024 08:21	3,850	58,336,988	29,959,000	1,997,000	2,281,472
4	Oct 9, 2024 08:21	3,853	53,833,250	30,983,000	999,000	2,424,832
5	Oct 23, 2024 08:44	3,855	53,292,398	29,994,000	1,999,000	2,281,472
6	Oct 9, 2024 08:20	3,862	60,101,208	31,052,000	1,001,000	2,281,472
7	Oct 9, 2024 08:21	3,866	58,657,622	30,080,000	2,005,000	2,281,472
8	Oct 23, 2024 08:43	3,867	62,461,782	30,091,000	2,006,000	2,281,472
9	Oct 9, 2024 08:21	3,867	53,669,910	31,092,000	1,002,000	2,416,640
10	Oct 9, 2024 08:21	3,868	60,387,134	30,098,000	2,006,000	2,281,472
11	Oct 9, 2024 08:21	3,869	58,764,752	31,112,000	1,003,000	2,281,472
12	Oct 23, 2024 08:44	3,871	55,685,948	30,124,000	2,008,000	2,420,736
13	Oct 9, 2024 08:20	3,872	58,860,851	31,104,000	1,036,000	2,416,640
14	Oct 9, 2024 08:20	3,876	55,496,804	31,163,000	1,005,000	2,424,832
15	Oct 10, 2024 15:29	3,876	57,238,807	30,160,000	2,010,000	2,281,472
16	Oct 9, 2024 08:20	3,882	60,008,583	30,209,000	2,013,000	2,281,472
17	Oct 9, 2024 08:20	3,886	55,529,387	30,236,000	2,015,000	2,281,472
18	Oct 23, 2024 08:44	3,887	55,684,310	31,254,000	1,008,000	2,281,472
19	Oct 9, 2024 08:20	3,888	55,889,571	30,255,000	2,017,000	2,428,928
20	Oct 23, 2024 08:44	3,893	57,916,536	31,307,000	1,009,000	2,420,736
21	Oct 9, 2024 08:21	3,900	58,512,497	31,359,000	1,011,000	2,281,472
22	Oct 9, 2024 08:21	3,900	56,473,599	31,361,000	1,011,000	2,420,736
23	Oct 10, 2024 15:29	3,903	56,922,659	30,367,000	2,024,000	2,281,472
24	Oct 9, 2024 08:20	3,903	58,114,901	32,393,000	0	2,281,472
25	Oct 23, 2024 08:44	3,910	63,223,869	31,435,000	1,014,000	2,412,544
26	Oct 9, 2024 08:20	3,911	51,475,980	31,447,000	1,014,000	2,420,736
27	Oct 23, 2024 08:44	3,911	58,352,034	31,450,000	1,014,000	2,281,472
28	Oct 23, 2024 08:43	3,918	58,060,619	31,506,000	1,016,000	2,281,472
29	Oct 23, 2024 08:44	3,918	53,581,893	32,516,000	0	2,424,832
30	Oct 23, 2024 08:44	3,921	62,764,328	31,530,000	1,017,000	2,281,472
31	Oct 9, 2024 08:20	3,927	62,186,382	31,575,000	1,018,000	2,424,832
32	Oct 9, 2024 08:21	3,935	63,723,582	32,660,000	0	2,281,472
33	Oct 10, 2024 15:29	3,940	58,690,938	31,680,000	1,021,000	2,277,376
34	Oct 23, 2024 08:43	3,961	58,842,426	31,878,000	996,000	2,281,472

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