Question

Write templates for the two functions minimum and maximum. The minimum function should accept two arguments and return the value of the argument that is the lesser of the two. The maximum function should accept two arguments and return the value of the argument that is the greater of the two.

Test your functions in a main program that propmts the user to choose what type of data they would like to compare (ints, doubles, or strings). Then, it should ask the user to enter two arguments, as well as whether they would like to know the minimum or the maximum. Then, it should print the minimum or maximum of the two arguments.

in C++

Answer 1

//main.cpp
#include <iostream>
using namespace std;

template <typename T>
T maximum(T val1, T val2)
{
   if(val1>val2){
          return val1;
   }
   return val2;
}

template <typename T>
T minimum(T val1, T val2)
{
   if(val1>val2){
          return val2;
   }
   return val1;
}

int main(){
   cout<<"maximum('a','b') = "<<maximum('a','b')<<endl;
   cout<<"maximum(1,2) = "<<maximum(1,2)<<endl;
   cout<<"maximum(2.1,1.2) = "<<maximum(2.1,1.2)<<endl;
   cout<<"minimum('a','b') = "<<minimum('a','b')<<endl;
   cout<<"minimum(1,2) = "<<minimum(1,2)<<endl;
   cout<<"minimum(2.1,1.2) = "<<minimum(2.1,1.2)<<endl;
   return 0;
}

Output:

maximum ('a', 'b') = b maximum (1,2) = 2 maximum (2.1,1.2) = 2.1 minimum ('a', 'b') = a minimum (1,2) = 1 minimum (2.1,1.2) = 1.2