Update ex14_32.cpp
Update ex14_32.cpp

Simplify the implementation.
andersy005/Cpp-Primer,Mooophy/Cpp-Primer,Soyn/Cpp-Primer,AndychenCL/Cpp-Primer,Mooophy/Cpp-Primer,sanerror/Cpp-Primer,AndychenCL/Cpp-Primer,Soyn/Cpp-Primer,sanerror/Cpp-Primer,andersy005/Cpp-Primer