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 listJan 10, 2025 07:59

Ian Mckibben

Score: 44,363

Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 11, 2025 18:40	42,587	382,179,259	352,475,000	1,001,000	2,289,664
2	Jan 11, 2025 18:40	42,595	378,792,166	351,534,000	2,003,000	2,506,752
3	Jan 11, 2025 18:41	43,039	387,102,028	356,220,000	1,000,000	2,289,664
4	Jan 11, 2025 18:41	43,048	379,177,310	356,301,000	1,000,000	2,293,760
5	Jan 11, 2025 18:41	43,083	383,438,007	356,588,000	998,000	2,281,472
6	Jan 11, 2025 18:45	43,085	388,098,667	355,608,000	1,997,000	2,289,664
7	Jan 11, 2025 18:41	43,089	385,176,466	354,644,000	2,996,000	2,289,664
8	Jan 11, 2025 18:45	43,092	387,056,591	355,662,000	1,998,000	2,506,752
9	Jan 11, 2025 18:41	43,096	388,059,524	355,698,000	1,998,000	2,510,848
10	Jan 11, 2025 18:41	43,099	385,411,886	355,724,000	1,998,000	2,277,376
11	Jan 11, 2025 18:41	43,100	381,177,302	355,734,000	1,998,000	2,289,664
12	Jan 11, 2025 18:41	43,101	381,054,105	355,737,000	1,998,000	2,289,664
13	Jan 11, 2025 18:45	43,107	379,972,937	356,791,000	999,000	2,289,664
14	Jan 11, 2025 18:41	43,109	385,037,646	356,806,000	999,000	2,289,664
15	Jan 11, 2025 18:40	43,301	386,124,872	358,396,000	1,001,000	2,289,664
16	Jan 11, 2025 18:40	43,311	393,302,262	358,479,000	1,001,000	2,289,664
17	Jan 11, 2025 18:40	43,329	392,691,022	358,636,000	998,000	2,289,664
18	Jan 11, 2025 18:40	43,333	385,443,733	357,664,000	1,998,000	2,289,664
19	Jan 11, 2025 18:40	43,342	382,535,188	357,739,000	1,998,000	2,510,848
20	Jan 11, 2025 18:40	43,353	382,782,641	357,835,000	1,999,000	2,510,848
21	Jan 11, 2025 18:40	43,354	380,427,252	357,842,000	1,999,000	2,285,568
22	Jan 9, 2025 07:54	44,048	392,039,898	364,604,000	998,000	2,510,848
23	Jan 9, 2025 07:54	44,059	389,075,614	363,689,000	1,998,000	2,281,472
24	Jan 9, 2025 07:54	44,059	392,781,786	363,689,000	1,998,000	2,289,664
25	Jan 9, 2025 07:54	44,065	389,039,992	363,745,000	1,998,000	2,506,752
26	Jan 9, 2025 07:54	44,070	398,793,193	364,777,000	1,002,000	2,330,624
27	Jan 10, 2025 08:00	44,073	396,040,814	363,806,000	1,998,000	2,289,664
28	Jan 10, 2025 08:00	44,080	389,355,690	363,867,000	1,999,000	2,289,664
29	Jan 9, 2025 07:54	44,080	389,292,866	363,868,000	1,999,000	2,338,816
30	Jan 10, 2025 08:00	44,082	392,984,421	364,879,000	999,000	2,289,664
31	Jan 9, 2025 07:54	44,086	388,663,111	363,915,000	1,999,000	2,289,664
32	Jan 9, 2025 07:54	44,090	393,587,419	363,949,000	1,999,000	2,289,664
33	Jan 9, 2025 07:54	44,108	390,240,304	364,098,000	2,000,000	2,281,472
34	Jan 9, 2025 07:53	44,361	388,854,565	367,196,000	1,000,000	2,289,664
35	Jan 9, 2025 07:53	44,363	391,117,536	368,210,000	0	2,281,472
36	Jan 9, 2025 07:53	44,382	398,665,914	367,367,000	1,001,000	2,289,664
37	Jan 9, 2025 07:53	44,383	394,965,868	367,380,000	1,001,000	2,289,664
38	Jan 9, 2025 07:53	44,390	397,717,819	367,439,000	1,001,000	2,289,664
39	Jan 9, 2025 07:53	44,392	393,769,725	367,455,000	1,001,000	2,289,664
40	Jan 9, 2025 07:53	44,394	399,693,473	367,469,000	1,001,000	2,289,664
41	Jan 9, 2025 07:53	44,398	396,643,137	368,507,000	0	2,289,664
42	Jan 9, 2025 07:53	44,418	400,939,454	367,670,000	999,000	2,506,752
43	Jan 9, 2025 07:52	46,064	408,903,033	381,328,000	1,000,000	2,510,848
44	Jan 9, 2025 07:52	46,106	412,736,039	380,681,000	1,998,000	2,342,912
45	Jan 9, 2025 07:52	46,114	408,510,804	380,752,000	1,998,000	2,281,472
46	Jan 9, 2025 07:54	46,983	418,255,043	388,958,000	999,000	2,289,664
47	Jan 9, 2025 07:54	46,988	413,086,013	388,004,000	2,000,000	2,289,664
48	Jan 9, 2025 07:54	47,025	424,243,584	389,308,000	1,000,000	2,289,664
49	Jan 9, 2025 07:52	49,519	435,172,281	410,004,000	1,000,000	2,510,848
50	Jan 9, 2025 07:52	49,521	437,370,223	409,027,000	2,000,000	2,289,664
51	Jan 9, 2025 07:52	49,521	434,583,509	409,023,000	2,000,000	2,519,040
52	Jan 9, 2025 07:34	51,303	450,051,351	423,817,000	1,999,000	2,289,664
53	Jan 9, 2025 07:47	51,308	449,417,415	423,855,000	1,999,000	2,289,664
54	Jan 9, 2025 07:34	51,314	451,330,803	423,904,000	1,999,000	2,519,040
55	Jan 9, 2025 07:34	51,318	449,897,728	423,941,000	1,999,000	2,289,664
56	Jan 9, 2025 07:34	51,324	448,596,372	423,987,000	1,999,000	2,506,752
57	Jan 9, 2025 07:34	51,324	449,507,064	423,987,000	1,999,000	2,281,472
58	Jan 9, 2025 07:34	51,339	451,833,883	424,112,000	2,000,000	2,502,656
59	Jan 9, 2025 07:34	51,341	449,328,454	424,128,000	2,000,000	2,293,760
60	Jan 9, 2025 07:34	51,360	449,649,541	426,290,000	0	2,510,848
61	Jan 9, 2025 07:34	51,385	451,713,032	426,494,000	0	2,519,040
62	Jan 9, 2025 07:47	51,420	454,752,113	424,786,000	1,998,000	2,502,656
63	Jan 9, 2025 07:52	51,443	451,389,218	424,981,000	1,999,000	2,289,664
64	Jan 9, 2025 07:52	51,445	450,885,686	424,997,000	1,999,000	2,289,664
65	Jan 9, 2025 07:47	51,458	454,533,629	426,104,000	1,000,000	2,519,040
66	Jan 9, 2025 07:52	51,529	455,901,378	425,691,000	1,998,000	2,289,664
67	Jan 10, 2025 07:59	59,181	513,551,602	489,201,000	2,000,000	2,506,752
68	Jan 10, 2025 07:59	59,203	517,638,780	490,386,000	1,000,000	2,502,656
69	Jan 10, 2025 07:59	59,228	522,385,689	490,593,000	999,000	2,281,472

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