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 listFeb 26, 2026 09:31

lipapipa

Score: 5,859

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	Feb 19, 2026 22:06	5,697	70,624,311	45,275,000	2,012,000	2,293,760
2	Feb 19, 2026 21:06	5,702	74,248,702	44,304,000	3,020,000	2,453,504
3	Feb 19, 2026 21:06	5,710	72,593,129	44,367,000	3,025,000	2,347,008
4	Feb 19, 2026 21:06	5,713	71,101,615	47,420,000	0	2,359,296
5	Feb 26, 2026 09:32	5,717	75,750,892	45,430,000	2,019,000	2,367,488
6	Feb 19, 2026 21:06	5,718	65,537,303	44,430,000	3,029,000	2,445,312
7	Feb 19, 2026 22:04	5,732	74,271,271	45,549,000	2,024,000	2,359,296
8	Feb 19, 2026 21:06	5,735	73,404,924	45,572,000	2,025,000	2,363,392
9	Feb 19, 2026 22:06	5,757	75,257,044	44,799,000	2,986,000	2,379,776
10	Feb 26, 2026 09:34	5,763	75,696,955	44,846,000	2,989,000	2,297,856
11	Feb 26, 2026 09:32	5,767	75,078,788	43,874,000	3,988,000	2,433,024
12	Feb 19, 2026 22:06	5,768	72,250,056	44,881,000	2,992,000	2,326,528
13	Feb 26, 2026 09:32	5,770	71,214,701	45,896,000	1,995,000	2,289,664
14	Feb 26, 2026 09:32	5,773	71,702,094	43,927,000	3,993,000	2,342,912
15	Feb 26, 2026 09:32	5,778	74,405,551	45,960,000	1,998,000	2,433,024
16	Feb 19, 2026 22:04	5,782	78,266,518	44,994,000	2,999,000	2,289,664
17	Feb 19, 2026 22:06	5,785	75,669,536	46,014,000	2,000,000	2,301,952
18	Feb 26, 2026 09:34	5,789	73,110,181	45,044,000	3,002,000	2,367,488
19	Feb 26, 2026 09:32	5,792	72,845,286	45,068,000	3,004,000	2,289,664
20	Feb 19, 2026 21:06	5,792	71,845,056	46,070,000	2,003,000	2,326,528
21	Feb 26, 2026 09:33	5,795	70,936,691	44,089,000	4,008,000	2,375,680
22	Feb 19, 2026 22:06	5,798	72,514,482	45,114,000	3,007,000	2,355,200
23	Feb 19, 2026 21:06	5,803	69,479,657	46,159,000	2,006,000	2,457,600
24	Feb 19, 2026 21:06	5,805	68,956,514	45,172,000	3,011,000	2,371,584
25	Feb 19, 2026 22:06	5,809	69,877,121	46,206,000	2,008,000	2,334,720
26	Feb 26, 2026 09:32	5,816	76,287,440	45,254,000	3,016,000	2,273,280
27	Feb 19, 2026 22:06	5,816	73,796,546	45,254,000	3,016,000	2,310,144
28	Feb 19, 2026 21:06	5,816	77,107,538	45,257,000	3,017,000	2,449,408
29	Feb 26, 2026 09:32	5,817	74,254,159	45,263,000	3,017,000	2,371,584
30	Feb 19, 2026 22:06	5,840	73,852,558	47,461,000	1,009,000	2,506,752
31	Feb 26, 2026 09:33	5,841	74,041,866	47,469,000	1,009,000	2,359,296
32	Feb 26, 2026 09:32	5,844	80,289,147	45,476,000	3,031,000	2,441,216
33	Feb 26, 2026 09:32	5,849	73,663,925	44,503,000	4,045,000	2,363,392
34	Feb 19, 2026 21:06	5,852	74,566,550	46,550,000	2,023,000	2,371,584
35	Feb 26, 2026 09:34	5,853	80,483,819	46,559,000	2,024,000	2,367,488
36	Feb 26, 2026 09:32	5,854	74,332,523	47,577,000	1,012,000	2,469,888
37	Feb 19, 2026 22:04	5,858	77,260,472	46,598,000	2,026,000	2,355,200
38	Feb 19, 2026 22:04	5,859	80,158,413	46,600,000	2,026,000	2,367,488
39	Feb 26, 2026 09:32	5,860	76,073,965	46,616,000	2,026,000	2,371,584
40	Feb 26, 2026 09:32	5,867	71,852,580	43,724,000	4,968,000	2,297,856
41	Feb 26, 2026 09:32	5,882	73,699,148	47,825,000	996,000	2,355,200
42	Feb 19, 2026 22:04	5,895	76,137,272	44,933,000	3,994,000	2,367,488
43	Feb 19, 2026 21:06	5,895	77,678,204	47,934,000	998,000	2,363,392
44	Feb 19, 2026 22:06	5,908	70,561,179	46,036,000	3,002,000	2,318,336
45	Feb 26, 2026 09:33	5,909	74,647,610	47,042,000	2,001,000	2,371,584
46	Feb 26, 2026 09:34	5,924	74,136,425	46,157,000	3,010,000	2,367,488
47	Feb 19, 2026 22:04	5,935	75,478,966	45,243,000	4,021,000	2,342,912
48	Feb 26, 2026 09:32	5,940	71,822,922	47,291,000	2,012,000	2,363,392
49	Feb 26, 2026 09:32	5,953	75,543,854	47,393,000	2,016,000	2,367,488
50	Feb 19, 2026 22:06	5,981	74,914,942	47,620,000	2,026,000	2,371,584
51	Feb 26, 2026 09:32	6,031	70,142,733	45,053,000	5,005,000	2,379,776
52	Feb 26, 2026 09:34	6,041	73,758,518	47,134,000	3,008,000	2,310,144
53	Feb 19, 2026 21:06	6,042	73,313,698	48,144,000	2,006,000	2,523,136
54	Feb 26, 2026 09:33	6,066	73,080,918	48,333,000	2,013,000	2,519,040
55	Feb 26, 2026 09:34	6,075	72,843,720	49,413,000	1,008,000	2,338,816
56	Feb 19, 2026 22:06	6,076	71,954,739	50,428,000	0	2,375,680
57	Feb 26, 2026 09:32	6,080	75,727,470	48,444,000	2,018,000	2,449,408
58	Feb 26, 2026 09:33	6,135	73,979,153	47,927,000	2,995,000	2,510,848
59	Feb 19, 2026 22:06	6,147	73,802,147	48,021,000	3,001,000	2,371,584
60	Feb 26, 2026 09:33	6,167	76,881,758	48,175,000	3,010,000	2,375,680
61	Feb 26, 2026 09:32	6,167	76,911,146	48,172,000	3,010,000	2,363,392
62	Feb 26, 2026 09:31	6,180	74,061,272	48,278,000	3,017,000	2,437,120
63	Feb 26, 2026 09:31	6,193	75,462,784	49,384,000	2,015,000	2,383,872
64	Feb 26, 2026 09:33	6,262	79,592,182	49,974,000	1,998,000	2,433,024
65	Feb 26, 2026 09:31	6,284	75,219,531	50,155,000	2,006,000	2,297,856
66	Feb 26, 2026 09:33	6,286	76,429,733	49,166,000	3,010,000	2,277,376
67	Feb 26, 2026 09:32	6,295	77,838,884	50,240,000	2,009,000	2,494,464
68	Feb 26, 2026 09:33	6,296	79,079,614	50,244,000	2,009,000	2,433,024
69	Feb 26, 2026 09:33	6,325	79,952,644	49,470,000	3,028,000	2,326,528
70	Feb 26, 2026 09:33	6,333	82,305,151	51,550,000	1,010,000	2,437,120
71	Feb 26, 2026 09:31	6,338	77,390,212	51,591,000	1,011,000	2,437,120
72	Feb 26, 2026 09:31	6,395	79,626,730	51,079,000	2,003,000	2,428,928
73	Feb 26, 2026 09:31	6,427	81,314,898	49,318,000	4,026,000	2,355,200
74	Feb 26, 2026 09:32	6,503	77,140,729	50,975,000	2,998,000	2,510,848
75	Feb 26, 2026 09:33	6,686	77,114,935	54,484,000	1,008,000	2,457,600

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