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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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 14, 2026 08:49	4,030	55,584,204	32,435,000	1,013,000	2,498,560
2	Apr 14, 2026 08:49	4,032	54,262,886	32,451,000	1,014,000	2,498,560
3	Apr 14, 2026 02:35	4,033	54,732,541	32,458,000	1,014,000	2,494,464
4	Apr 14, 2026 02:45	4,034	51,641,613	32,471,000	1,014,000	2,277,376
5	Apr 14, 2026 02:44	4,036	57,676,112	32,481,000	1,015,000	2,494,464
6	Apr 14, 2026 08:49	4,038	52,252,673	32,498,000	1,015,000	2,277,376
7	Apr 14, 2026 10:46	4,038	52,864,046	32,498,000	1,015,000	2,531,328
8	Apr 14, 2026 02:43	4,039	58,013,882	32,511,000	1,015,000	2,490,368
9	Apr 14, 2026 07:29	4,040	53,774,846	32,513,000	1,016,000	2,277,376
10	Apr 14, 2026 08:30	4,044	62,307,120	32,551,000	1,017,000	2,494,464
11	Apr 14, 2026 02:37	4,046	64,632,199	32,566,000	1,017,000	2,490,368
12	Apr 14, 2026 07:28	4,049	62,511,163	32,586,000	1,018,000	2,277,376
13	Apr 14, 2026 10:46	4,049	60,546,962	32,585,000	1,018,000	2,277,376
14	Apr 14, 2026 02:35	4,049	63,598,926	32,588,000	1,018,000	2,490,368
15	Apr 14, 2026 07:28	4,050	61,442,283	32,595,000	1,018,000	2,277,376
16	Apr 14, 2026 02:45	4,050	58,336,487	32,600,000	1,018,000	2,277,376
17	Apr 14, 2026 02:37	4,053	63,591,772	32,619,000	1,019,000	2,490,368
18	Apr 14, 2026 02:45	4,053	60,513,053	32,617,000	1,019,000	2,277,376
19	Apr 14, 2026 02:45	4,053	61,017,432	32,622,000	1,019,000	2,277,376
20	Apr 14, 2026 02:40	4,056	62,287,885	32,641,000	1,020,000	2,277,376
21	Apr 14, 2026 10:47	4,057	58,472,047	32,652,000	1,020,000	2,277,376
22	Apr 14, 2026 02:44	4,059	55,766,003	32,666,000	1,020,000	2,277,376
23	Apr 14, 2026 02:43	4,059	61,678,058	32,666,000	1,020,000	2,494,464
24	Apr 14, 2026 02:46	4,062	58,691,037	31,731,000	1,983,000	2,277,376
25	Apr 14, 2026 02:44	4,075	57,557,447	31,834,000	1,989,000	2,277,376
26	Apr 14, 2026 02:35	4,075	61,772,918	31,830,000	1,989,000	2,277,376
27	Apr 14, 2026 10:45	4,076	58,929,865	31,840,000	1,990,000	2,535,424
28	Apr 14, 2026 02:44	4,076	57,538,912	32,833,000	994,000	2,535,424
29	Apr 14, 2026 02:44	4,077	65,773,762	31,851,000	1,990,000	2,482,176
30	Apr 14, 2026 02:36	4,078	61,762,019	31,856,000	1,991,000	2,494,464
31	Apr 14, 2026 07:32	4,079	56,665,390	31,867,000	1,991,000	2,277,376
32	Apr 14, 2026 02:40	4,083	56,361,850	31,893,000	1,993,000	2,277,376
33	Apr 14, 2026 08:49	4,087	58,349,866	31,929,000	1,995,000	2,494,464
34	Apr 14, 2026 10:47	4,095	56,813,324	31,988,000	1,999,000	2,277,376
35	Apr 14, 2026 02:40	4,097	58,616,168	32,009,000	2,000,000	2,277,376
36	Apr 14, 2026 07:32	4,106	54,868,484	32,079,000	2,004,000	2,498,560
37	Apr 14, 2026 08:49	4,106	57,877,043	32,074,000	2,004,000	2,277,376
38	Apr 14, 2026 10:46	4,117	59,483,576	32,165,000	2,010,000	2,277,376
39	Apr 14, 2026 05:33	4,118	60,921,497	32,170,000	2,010,000	2,277,376
40	Apr 14, 2026 08:49	4,122	57,589,873	32,199,000	2,012,000	2,277,376
41	Apr 14, 2026 02:46	4,134	54,211,431	33,304,000	1,009,000	2,277,376
42	Apr 14, 2026 08:49	4,137	58,538,306	33,327,000	1,009,000	2,277,376
43	Apr 14, 2026 08:30	4,139	58,501,778	33,346,000	1,010,000	2,535,424
44	Apr 14, 2026 02:36	4,153	60,508,054	33,458,000	1,013,000	2,486,272
45	Apr 14, 2026 02:37	4,156	61,696,351	33,482,000	1,014,000	2,277,376
46	Apr 14, 2026 02:43	4,159	60,556,746	33,508,000	1,015,000	2,490,368
47	Apr 14, 2026 02:36	4,159	65,616,696	33,503,000	1,015,000	2,494,464
48	Apr 14, 2026 02:35	4,165	59,505,013	33,552,000	1,016,000	2,531,328
49	Apr 14, 2026 02:45	4,182	61,582,232	33,688,000	1,020,000	2,277,376
50	Apr 14, 2026 08:49	4,195	57,494,558	32,829,000	1,989,000	2,277,376
51	Apr 14, 2026 02:43	4,197	63,512,470	32,844,000	1,990,000	2,486,272
52	Apr 14, 2026 07:29	4,197	63,216,348	32,846,000	1,990,000	2,490,368
53	Apr 14, 2026 02:44	4,197	57,422,116	33,840,000	995,000	2,498,560
54	Apr 14, 2026 02:36	4,198	58,654,226	32,851,000	1,990,000	2,494,464
55	Apr 14, 2026 10:45	4,199	58,561,136	32,858,000	1,991,000	2,277,376
56	Apr 14, 2026 08:49	4,200	56,600,648	32,868,000	1,992,000	2,535,424
57	Apr 14, 2026 08:30	4,200	57,264,340	32,872,000	1,992,000	2,490,368
58	Apr 14, 2026 05:33	4,201	58,834,625	32,877,000	1,992,000	2,277,376
59	Apr 14, 2026 02:45	4,201	60,124,404	32,874,000	1,992,000	2,277,376
60	Apr 14, 2026 02:43	4,202	54,470,955	33,848,000	1,025,000	2,498,560
61	Apr 14, 2026 10:45	4,203	60,463,578	32,893,000	1,993,000	2,494,464
62	Apr 14, 2026 07:29	4,204	57,331,826	33,869,000	1,026,000	2,498,560
63	Apr 14, 2026 02:54	4,207	56,804,831	32,920,000	1,995,000	2,498,560
64	Apr 14, 2026 10:45	4,207	61,287,220	32,919,000	1,995,000	2,277,376
65	Apr 14, 2026 08:49	4,208	54,562,327	32,932,000	1,995,000	2,277,376
66	Apr 14, 2026 05:33	4,210	56,805,047	32,945,000	1,996,000	2,277,376
67	Apr 14, 2026 10:45	4,212	54,481,257	32,966,000	1,997,000	2,277,376
68	Apr 14, 2026 02:46	4,223	59,730,087	33,050,000	2,003,000	2,277,376
69	Apr 14, 2026 08:49	4,225	53,428,142	33,066,000	2,004,000	2,494,464
70	Apr 14, 2026 02:43	4,225	56,400,091	33,063,000	2,003,000	2,277,376
71	Apr 14, 2026 02:54	4,227	59,968,024	33,079,000	2,004,000	2,277,376
72	Apr 14, 2026 10:46	4,229	56,396,119	33,098,000	2,005,000	2,277,376
73	Apr 14, 2026 02:44	4,232	59,345,287	33,121,000	2,007,000	2,277,376
74	Apr 14, 2026 02:36	4,232	60,520,474	33,120,000	2,007,000	2,494,464
75	Apr 14, 2026 02:44	4,239	58,995,315	33,177,000	2,010,000	2,490,368
76	Apr 14, 2026 08:49	4,244	54,151,998	33,216,000	2,013,000	2,494,464
77	Apr 14, 2026 10:46	4,246	60,082,330	33,230,000	2,013,000	2,277,376
78	Apr 14, 2026 07:28	4,247	58,140,601	33,239,000	2,014,000	2,494,464
79	Apr 14, 2026 02:36	4,250	55,129,050	33,256,000	2,015,000	2,494,464
80	Apr 14, 2026 10:46	4,250	59,050,091	33,262,000	2,015,000	2,494,464
81	Apr 14, 2026 10:45	4,251	61,732,410	34,277,000	1,008,000	2,277,376
82	Apr 14, 2026 02:35	4,252	62,419,707	34,282,000	1,008,000	2,498,560
83	Apr 14, 2026 07:32	4,257	53,882,527	34,323,000	1,009,000	2,277,376
84	Apr 14, 2026 10:47	4,257	61,577,980	34,321,000	1,009,000	2,490,368
85	Apr 14, 2026 02:54	4,261	55,513,633	34,357,000	1,010,000	2,277,376
86	Apr 14, 2026 02:44	4,398	61,562,942	35,492,000	1,014,000	2,486,272
87	Apr 14, 2026 02:35	4,697	63,816,993	36,985,000	1,999,000	2,277,376

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