Update ex14_43.cpp
Update ex14_43.cpp

heamon7/CppPrimer,at86/CppPrimer,shuidong/CppPrimer,laohei889/CppPrimer,Milk-SF/CppPrimer,FingerSport/CppPrimer,cheng668/CppPrimer,pezy/CppPrimer,wgs111/CppPrimer,cseryp/CppPrimer,heamon7/CppPrimer,laohei889/CppPrimer,m0000re/CppPrimer,sheldon66/CppPrimer,Sublele/CppPrimer,sunday1103/Cpp-Primer,at86/CppPrimer,lawlietye/CppPrimer,shuidong/CppPrimer,m0000re/CppPrimer,floristt/CppPrimer,floristt/CppPrimer,zhangzhizhongz3/CppPrimer,jwave/CppPrimer,Milk-SF/CppPrimer,zhangzhizhongz3/CppPrimer,FingerSport/CppPrimer,cheng668/CppPrimer,pezy/CppPrimer,akanezorap/CppPrimer,anguszxd/CppPrimer,cseryp/CppPrimer,vzyw/CppPrimer,akanezorap/CppPrimer,wgs111/CppPrimer,vzyw/CppPrimer,jwave/CppPrimer,Sublele/CppPrimer,lawlietye/CppPrimer,jieniyimiao/CppPrimer,sheldon66/CppPrimer