Can someone help me in this

Question

Q11: (Program) Write a C++ program that asks for two lowercase characters. Pass the two entered
characters, using pointers, to a function named capit(). The capit() function should capitalize the two
letters and return the capitalized values to the calling function through its pointer arguments. The calling
function should then display all four letters.

I'm quite stuck in this question 😓
Here is my code

#include <iostream>
#include <string>
using namespace std;

void capit(char *str, char *str2)
{

char lower1 , lower2;

cout<<(toupper(lower1));
cout << endl;
putchar(toupper(lower2));
cout << endl;
//cout << upp << endl;
//cout << upp << endl;

}
int main()
{
char lower1, lower2;
cout << "enter first letter :";
cout << endl;
cin >> lower1;
cout<< "enter second letter :";
cin >> lower2;

capit(&lower1, &lower2);

return 0;
}

Answer 1

toupper() requires header file ctype.h

Answer 2

Is this what you are looking for ?

#include <iostream>
#include <string>
#include <cctype>
using namespace std;

void capit(char *str, char *str2)
{

char lower1 , lower2;
lower1=*str;
lower2=*str2;

putchar(toupper(lower1));
cout << endl;
putchar(toupper(lower2));
cout << endl;
//cout << upp << endl;
//cout << upp << endl;

}
int main()
{
char lower1, lower2;
cout << "enter first letter :";
cout << endl;
cin >> lower1;
cout<< "enter second letter :";
cin >> lower2;

capit(&lower1, &lower2);

return 0;
}

Answer 3

When I run my code
Output is :
Enter 1 letter : // input b
Enter 2 letter : // input a
0

Answer 4

The process is not executed

Answer 5

🥺 thank uuu