iostream, the use of namespace std, typical whitespace/formatting, and C++ streams for output. It is virtually impossible (in any language) to beat the 22 characters of “Hello World” in Python3.User Tools
cpp
Table of Contents
2. C++ Language Reference
Programming languages are a tool. While many modern programming languages are designed to be general purpose, some programming languages may be better suited to solve certain problems than others.
When to use C++
Whenever you have questions about time or memory limits, C++ is typically a safer path than Python3. C++ contains most of the C library (when limits really put you in a pinch) and(at a higher level) boasts a well-established standard library of generics through templates. Many competitive programmers are versed in preprocessor macros that make C++ feel more like Python3 as well.
When not to use C++
Unlike Python3, it is difficult to argue that C++ is ever a poor choice for a contest problem. Well-written C++ is difficult to beat in terms of runtime efficiency.
However, for all the benefits of C++, well written Python3 can be generated in fewer keystrokes than is possible in C++ or Java.1) This is due to both the terse syntax, and the lack of any required boilerplate in the most basic program.
Input/Output
Data Structures
Sequential Structures
Non-Sequential Structures
Mathematical Types and Operations
Numeric Types
1)
The standard “Hello World!” in C++ takes can be accomplished in 107 keystrokes (not including editor commands) including the inclusion of
cpp.txt · Last modified: 2018/08/28 13:29 by jguerin
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