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 24, 2026 21:26

Mikołaj Uzarski

Score: 5,124

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 24, 2026 21:27	5,095	64,122,159	40,279,000	2,013,000	2,281,472
2	Feb 24, 2026 21:26	5,096	70,003,518	40,283,000	2,014,000	2,289,664
3	Feb 24, 2026 21:29	5,101	65,830,172	40,322,000	2,016,000	2,514,944
4	Feb 24, 2026 21:26	5,106	65,858,289	40,359,000	2,017,000	2,281,472
5	Feb 24, 2026 21:28	5,106	70,029,504	41,371,000	1,009,000	2,498,560
6	Feb 24, 2026 21:26	5,108	63,634,234	41,388,000	1,009,000	2,510,848
7	Feb 24, 2026 21:26	5,108	69,256,952	40,378,000	2,018,000	2,281,472
8	Feb 24, 2026 21:27	5,109	68,196,828	40,388,000	2,019,000	2,510,848
9	Feb 24, 2026 21:28	5,110	64,843,484	42,412,000	0	2,285,568
10	Feb 24, 2026 21:27	5,111	68,188,293	40,403,000	2,020,000	2,285,568
11	Feb 24, 2026 21:29	5,111	68,822,913	40,400,000	2,020,000	2,285,568
12	Feb 24, 2026 21:26	5,111	66,979,770	42,423,000	0	2,281,472
13	Feb 24, 2026 21:29	5,112	66,300,224	40,411,000	2,020,000	2,285,568
14	Feb 24, 2026 21:27	5,112	66,864,246	39,399,000	3,030,000	2,347,008
15	Feb 24, 2026 21:28	5,113	64,582,894	42,441,000	0	2,281,472
16	Feb 24, 2026 21:28	5,113	68,130,549	41,432,000	1,010,000	2,285,568
17	Feb 24, 2026 21:27	5,113	71,024,926	40,416,000	2,020,000	2,285,568
18	Feb 24, 2026 21:26	5,114	68,229,891	41,438,000	1,010,000	2,281,472
19	Feb 24, 2026 21:26	5,115	65,632,233	41,441,000	1,010,000	2,285,568
20	Feb 24, 2026 21:28	5,118	71,064,745	41,471,000	1,011,000	2,285,568
21	Feb 24, 2026 21:26	5,120	67,006,225	41,485,000	1,011,000	2,281,472
22	Feb 24, 2026 21:26	5,122	68,346,371	42,515,000	0	2,285,568
23	Feb 24, 2026 21:26	5,123	67,381,676	40,496,000	2,024,000	2,510,848
24	Feb 24, 2026 21:26	5,123	65,273,369	41,512,000	1,012,000	2,281,472
25	Feb 24, 2026 21:29	5,124	68,586,740	41,520,000	1,012,000	2,510,848
26	Feb 24, 2026 21:27	5,124	61,829,882	41,515,000	1,012,000	2,285,568
27	Feb 24, 2026 21:28	5,125	66,539,552	41,527,000	1,012,000	2,277,376
28	Feb 24, 2026 21:27	5,127	67,079,311	41,542,000	1,013,000	2,281,472
29	Feb 24, 2026 21:28	5,127	69,024,737	41,545,000	1,013,000	2,498,560
30	Feb 24, 2026 21:29	5,127	66,821,522	41,540,000	1,013,000	2,285,568
31	Feb 24, 2026 21:26	5,128	67,829,548	41,548,000	1,013,000	2,281,472
32	Feb 24, 2026 21:26	5,128	71,979,798	42,563,000	0	2,281,472
33	Feb 24, 2026 21:29	5,128	70,343,697	41,546,000	1,013,000	2,285,568
34	Feb 24, 2026 21:26	5,129	71,733,955	41,555,000	1,013,000	2,285,568
35	Feb 24, 2026 21:29	5,130	67,338,512	41,568,000	1,013,000	2,506,752
36	Feb 24, 2026 21:27	5,133	67,884,758	41,586,000	1,014,000	2,285,568
37	Feb 24, 2026 21:27	5,135	74,529,001	41,605,000	1,014,000	2,285,568
38	Feb 24, 2026 21:29	5,136	69,075,408	42,626,000	0	2,359,296
39	Feb 24, 2026 21:26	5,138	71,958,745	41,633,000	1,015,000	2,510,848
40	Feb 24, 2026 21:29	5,140	69,052,048	42,660,000	0	2,498,560
41	Feb 24, 2026 21:27	5,142	66,815,477	41,660,000	1,016,000	2,506,752
42	Feb 24, 2026 21:27	5,156	75,561,837	39,812,000	2,985,000	2,281,472
43	Feb 24, 2026 21:26	5,156	69,470,841	41,798,000	995,000	2,285,568
44	Feb 24, 2026 21:26	5,184	64,950,818	41,026,000	2,001,000	2,285,568
45	Feb 24, 2026 21:28	5,188	64,990,860	42,063,000	1,001,000	2,510,848
46	Feb 24, 2026 21:26	5,192	65,548,837	41,087,000	2,004,000	2,510,848
47	Feb 24, 2026 21:26	5,197	69,150,744	42,132,000	1,003,000	2,289,664
48	Feb 24, 2026 21:28	5,200	67,350,399	42,153,000	1,003,000	2,281,472
49	Feb 24, 2026 21:27	5,208	72,470,403	41,216,000	2,010,000	2,285,568
50	Feb 24, 2026 21:26	5,236	64,918,213	40,424,000	3,031,000	2,281,472
51	Feb 24, 2026 21:26	5,279	66,730,659	40,829,000	2,987,000	2,269,184

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