C++编程题一道！急！！！！

Question

设计一个程序，通过重载求两个数中最大数的函数max，分别实现求两个实数和两个整数以及两个字符的最大数。

Answer 1

#include <iostream>
using namespace std;

int max(int a,int b)
{
return a>b?a:b;
}

float max(float a,float b)
{
return a>b?a:b;
}

char max(char a,char b)
{
return a>b?a:b;
}

void main()
{
cout<<max(2,3)<<endl;
cout<<max(3.2f,2.2f)<<endl;
cout<<max('3','2')<<endl;
}

像这种问题用函数模板更直接

Answer 2

#include <iostream>
template <typename T>
T max(T x,T y)
{
return x>y?x:y;
}

Answer 3

#include <iostream>
using namespace std;
double max(fdouble a,double b)
{
return a>b?a:b;
}
int max(int a,int b)
{
return a>b?a:b;
}

char max(char a,char b)
{
return a>b?a:b;
}

void main()
{
cout<<max(2,3)<<endl;
cout<<max(3.2df,2.2df)<<endl;
cout<<max('3','2')<<endl;
}