
Explanation of Solution
String concatenation:
It is a process of combining two strings to obtain a single string. Two strings can be combined using a “+” symbol. The process of obtaining merged string is called string concatenation.
Example:
Consider two strings “string 1” as “hai” and “string 2” as “hello”.
“hai”+ “hello” = “haihello”
Complete Program:
//include the necessary headers
#include<iostream>
#include<cstdlib>
#include<string>
#include<
using namespace std;
//class definition and declaration
class Trans
{
//vector declaration
vector<string>numerals
{
"zero","one","two","three","four","five",
"six","seven","eight","nine","ten"
};
//function definition to compare the values
public:
int operator[ ](string num_str)
{
//loop that iterates for total number of elements
for (int k = 0; k<numerals...
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