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 listDec 6, 2025 15:48

Rajarshi Basu

Score: 6,169

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	Dec 6, 2025 15:28	6,048	75,823,067	47,188,000	3,012,000	2,289,664
2	Dec 6, 2025 15:41	6,052	71,180,123	48,219,000	2,009,000	2,289,664
3	Dec 6, 2025 15:47	6,053	77,459,982	48,228,000	2,009,000	2,281,472
4	Dec 6, 2025 15:27	6,055	73,689,178	48,244,000	2,010,000	2,277,376
5	Dec 6, 2025 15:28	6,058	72,501,381	48,269,000	2,011,000	2,260,992
6	Dec 6, 2025 15:28	6,060	71,943,204	49,292,000	1,005,000	2,277,376
7	Dec 6, 2025 15:27	6,061	71,831,296	49,300,000	1,006,000	2,387,968
8	Dec 6, 2025 15:48	6,061	77,290,152	48,294,000	2,012,000	2,289,664
9	Dec 6, 2025 15:41	6,061	75,655,784	47,289,000	3,018,000	2,289,664
10	Dec 6, 2025 15:28	6,061	76,074,540	48,292,000	2,012,000	2,289,664
11	Dec 6, 2025 15:47	6,065	75,520,233	48,328,000	2,013,000	2,289,664
12	Dec 6, 2025 15:41	6,066	80,476,852	48,336,000	2,014,000	2,289,664
13	Dec 6, 2025 15:47	6,070	75,272,462	47,359,000	3,022,000	2,289,664
14	Dec 6, 2025 15:27	6,071	75,905,908	48,373,000	2,015,000	2,281,472
15	Dec 6, 2025 15:30	6,073	79,227,247	49,396,000	1,008,000	2,289,664
16	Dec 6, 2025 15:41	6,074	76,292,636	48,402,000	2,016,000	2,281,472
17	Dec 6, 2025 15:28	6,079	71,467,832	49,447,000	1,009,000	2,277,376
18	Dec 6, 2025 15:27	6,080	76,694,420	49,456,000	1,009,000	2,289,664
19	Dec 6, 2025 15:28	6,081	73,321,795	49,461,000	1,009,000	2,273,280
20	Dec 6, 2025 15:47	6,082	72,460,527	49,475,000	1,009,000	2,273,280
21	Dec 6, 2025 15:28	6,091	77,959,952	49,543,000	1,011,000	2,289,664
22	Dec 6, 2025 15:28	6,094	77,950,501	49,573,000	1,011,000	2,289,664
23	Dec 6, 2025 15:41	6,102	82,114,980	48,622,000	2,025,000	2,289,664
24	Dec 6, 2025 15:41	6,129	75,472,575	48,879,000	1,995,000	2,277,376
25	Dec 6, 2025 15:28	6,133	72,699,306	48,907,000	1,996,000	2,273,280
26	Dec 6, 2025 15:47	6,161	75,224,304	49,132,000	2,005,000	2,269,184
27	Dec 6, 2025 15:27	6,161	73,930,969	48,129,000	3,008,000	2,289,664
28	Dec 6, 2025 15:41	6,163	73,875,429	49,144,000	2,005,000	2,289,664
29	Dec 6, 2025 15:27	6,165	73,219,716	49,164,000	2,006,000	2,269,184
30	Dec 6, 2025 15:48	6,167	73,270,012	48,176,000	3,011,000	2,289,664
31	Dec 6, 2025 15:27	6,169	75,817,890	49,198,000	2,008,000	2,289,664
32	Dec 6, 2025 15:30	6,171	78,180,441	49,211,000	2,008,000	2,289,664
33	Dec 6, 2025 15:41	6,173	76,437,180	50,211,000	1,024,000	2,277,376
34	Dec 6, 2025 15:47	6,174	73,834,943	49,239,000	2,009,000	2,289,664
35	Dec 6, 2025 15:27	6,180	78,840,221	49,280,000	2,011,000	2,289,664
36	Dec 6, 2025 15:27	6,184	75,499,926	49,315,000	2,012,000	2,289,664
37	Dec 6, 2025 15:30	6,187	77,493,915	49,340,000	2,013,000	2,269,184
38	Dec 6, 2025 15:27	6,192	75,345,603	51,396,000	0	2,289,664
39	Dec 6, 2025 15:47	6,193	79,517,425	49,387,000	2,015,000	2,281,472
40	Dec 6, 2025 15:27	6,197	72,781,295	50,430,000	1,008,000	2,269,184
41	Dec 6, 2025 15:28	6,200	72,493,683	50,455,000	1,009,000	2,289,664
42	Dec 6, 2025 15:27	6,201	76,065,637	51,470,000	0	2,260,992
43	Dec 6, 2025 15:41	6,202	79,622,377	49,458,000	2,018,000	2,289,664
44	Dec 6, 2025 15:28	6,210	79,415,219	50,534,000	1,010,000	2,289,664
45	Dec 6, 2025 15:47	6,212	77,044,005	50,550,000	1,011,000	2,416,640
46	Dec 6, 2025 15:48	6,212	79,275,342	50,551,000	1,011,000	2,289,664
47	Dec 6, 2025 15:47	6,243	80,103,254	48,829,000	2,989,000	2,277,376
48	Dec 6, 2025 15:30	6,244	82,278,089	49,830,000	1,993,000	2,289,664
49	Dec 6, 2025 15:47	6,244	78,356,367	51,829,000	0	2,265,088
50	Dec 6, 2025 15:47	6,250	74,179,394	50,855,000	1,017,000	2,289,664
51	Dec 6, 2025 15:41	6,276	80,046,288	50,091,000	2,003,000	2,289,664
52	Dec 6, 2025 15:41	6,280	73,698,152	49,114,000	3,006,000	2,289,664
53	Dec 6, 2025 15:41	6,288	74,815,266	50,183,000	2,007,000	2,269,184
54	Dec 6, 2025 15:48	6,289	73,644,281	50,194,000	2,007,000	2,289,664
55	Dec 6, 2025 15:30	6,298	81,498,765	50,265,000	2,010,000	2,289,664
56	Dec 6, 2025 15:30	6,312	75,789,846	50,372,000	2,014,000	2,269,184
57	Dec 6, 2025 15:48	6,324	77,211,551	51,477,000	1,009,000	2,277,376
58	Dec 6, 2025 15:48	6,333	82,179,401	51,552,000	1,010,000	2,289,664
59	Dec 6, 2025 15:47	6,375	78,513,314	50,918,000	1,996,000	2,289,664
60	Dec 6, 2025 15:28	6,395	75,002,884	50,078,000	3,004,000	2,289,664

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