best code editor for c++ code example

Example 1: gfg ide

class A:
	def hello1(self):        
    	print("Super")
class B(A):
	def hello1(self):
    	print("Child1")
class C(B):    
	def hello(self):        
    	print("Child2")
ob = C()
ob.hello()
ob.hello1()

Example 2: best mac free c++ ide

Eclipse
NetBeans
Xcode