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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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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Challenge History

Date	Challenger	Cost	Type	Status
Jul 6, 2026 22:50	Victor Mercklé	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Jul 6, 2026 22:50	0	41,420,054	32,347,000	1,163,000	2,113,536	expected "74600294196621100 ", got "46061802099916588 "
2	Jul 6, 2026 22:50	0	40,552,301	31,591,000	1,071,000	2,113,536	expected "74600294196621100 ", got "44816249774391596 "
3	Jul 6, 2026 22:50	0	41,260,426	32,017,000	1,148,000	2,113,536	expected "74600294196621100 ", got "44822527460568108 "
4	Mar 14, 2026 22:02	4,236	55,252,496	33,152,000	2,009,000	2,273,280
5	Mar 14, 2026 22:00	4,239	57,807,966	33,175,000	2,010,000	2,498,560
6	Mar 14, 2026 22:03	4,242	56,277,357	33,194,000	2,011,000	2,273,280
7	Mar 14, 2026 22:01	4,246	58,329,749	33,229,000	2,013,000	2,531,328
8	Mar 14, 2026 22:01	4,246	63,138,774	33,225,000	2,013,000	2,273,280
9	Mar 14, 2026 21:57	4,249	56,170,907	33,254,000	2,015,000	2,273,280
10	Mar 14, 2026 21:58	4,249	54,059,474	34,259,000	1,007,000	2,486,272
11	Mar 14, 2026 22:01	4,250	55,465,449	34,266,000	1,007,000	2,498,560
12	Mar 14, 2026 22:00	4,251	58,229,027	34,273,000	1,008,000	2,273,280
13	Mar 14, 2026 21:59	4,251	56,662,726	34,278,000	1,008,000	2,273,280
14	Mar 14, 2026 21:59	4,252	55,001,134	34,287,000	1,008,000	2,494,464
15	Mar 14, 2026 22:01	4,252	54,898,585	34,285,000	1,008,000	2,273,280
16	Mar 14, 2026 21:58	4,252	59,746,395	34,284,000	1,008,000	2,273,280
17	Mar 14, 2026 22:02	4,252	55,204,902	34,286,000	1,008,000	2,273,280
18	Mar 14, 2026 22:00	4,253	58,675,610	34,289,000	1,008,000	2,494,464
19	Mar 14, 2026 22:01	4,254	57,185,026	34,300,000	1,008,000	2,273,280
20	Mar 14, 2026 22:01	4,255	67,177,186	34,308,000	1,009,000	2,498,560
21	Mar 14, 2026 22:00	4,257	58,110,822	34,322,000	1,009,000	2,273,280
22	Mar 14, 2026 22:03	4,257	63,979,919	34,327,000	1,009,000	2,490,368
23	Mar 14, 2026 22:00	4,257	62,699,991	34,327,000	1,009,000	2,498,560
24	Mar 14, 2026 22:00	4,259	62,671,386	34,337,000	1,009,000	2,273,280
25	Mar 14, 2026 22:03	4,259	55,537,135	34,340,000	1,010,000	2,498,560
26	Mar 14, 2026 21:57	4,260	54,778,039	34,351,000	1,010,000	2,273,280
27	Mar 14, 2026 21:58	4,261	59,519,716	34,357,000	1,010,000	2,494,464
28	Mar 14, 2026 22:00	4,265	54,866,230	34,385,000	1,011,000	2,494,464
29	Mar 14, 2026 21:58	4,266	58,115,435	34,396,000	1,011,000	2,494,464
30	Mar 14, 2026 21:57	4,266	53,819,463	34,396,000	1,011,000	2,273,280
31	Mar 14, 2026 22:01	4,266	60,389,756	34,393,000	1,011,000	2,273,280
32	Mar 14, 2026 22:02	4,272	56,077,508	34,442,000	1,013,000	2,527,232
33	Mar 14, 2026 21:59	4,273	54,002,065	34,451,000	1,013,000	2,273,280
34	Mar 14, 2026 22:00	4,275	60,069,025	34,471,000	1,013,000	2,498,560
35	Mar 14, 2026 22:01	4,281	55,120,166	34,518,000	1,015,000	2,531,328
36	Mar 14, 2026 21:59	4,284	57,601,449	34,539,000	1,015,000	2,494,464
37	Mar 14, 2026 22:00	4,288	61,296,045	34,572,000	1,016,000	2,486,272
38	Mar 14, 2026 22:01	4,288	64,088,503	34,577,000	1,016,000	2,273,280
39	Mar 14, 2026 21:59	4,290	61,502,597	34,591,000	1,017,000	2,486,272
40	Mar 14, 2026 21:58	4,292	60,873,050	34,609,000	1,017,000	2,490,368
41	Mar 14, 2026 21:59	4,294	65,305,888	34,625,000	1,018,000	2,273,280
42	Mar 14, 2026 22:01	4,294	62,265,970	34,624,000	1,018,000	2,498,560
43	Mar 14, 2026 22:03	4,299	62,375,072	34,662,000	1,019,000	2,494,464
44	Mar 14, 2026 22:00	4,315	63,437,825	33,827,000	1,989,000	2,273,280
45	Mar 14, 2026 21:59	4,318	66,326,704	33,847,000	1,991,000	2,486,272
46	Mar 14, 2026 21:58	4,318	59,041,190	34,846,000	995,000	2,494,464
47	Mar 14, 2026 22:01	4,319	65,555,200	33,859,000	1,991,000	2,273,280
48	Mar 14, 2026 21:59	4,319	62,663,488	33,856,000	1,991,000	2,527,232
49	Mar 14, 2026 22:03	4,319	59,379,761	33,854,000	1,991,000	2,273,280
50	Mar 14, 2026 21:59	4,320	65,256,912	33,867,000	1,992,000	2,490,368
51	Mar 14, 2026 22:01	4,321	64,181,052	33,872,000	1,992,000	2,494,464
52	Mar 14, 2026 22:00	4,340	61,353,456	34,020,000	2,001,000	2,486,272
53	Mar 14, 2026 22:03	4,562	62,129,379	36,870,000	996,000	2,494,464
54	Mar 14, 2026 22:00	4,562	63,281,943	35,873,000	1,992,000	2,269,184

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