Write a program that prompts the user to input a string and outputs the string in uppercase letters using dynamic arrays.  Given code:  #include  #include   #include      using namespace std; int main() {     char str[81];     int len;     int i;     cout << "Enter a string: ";     cin.get(str, 80);     cout << endl;     cout << "String in upper case letters is:" << endl;     len = strlen(str);     for (i = 0; i < len; i++)         cout << static_cast(toupper(str[i]));     cout << endl;     return 0; }

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.