Why is the use of the "using namespace std;" directive common in C++ programs?
- It allows access to standard C++ libraries
- It eliminates the need for including header files
- It improves program performance
- It reduces code complexity
"using namespace std;" is used in C++ programs to simplify the use of standard C++ libraries. It eliminates the need for prefixing standard library elements with "std::" and thus reduces code verbosity and complexity. It doesn't affect program performance or eliminate the need for including header files.
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