use Advanced C++ techniques, containers and features to refactor the C/C++ algorithm.  The purpose is to replace appropriate declarations and code segments with Advanced C++ declarations and code. * Replace all arrays with appropriate STL containers. * Use STL algorithms to REPLACE existing logic where appropriate. * Use smart and move pointers where pointers are needed.  * Use lambda expressions where appropriate. * Use C++ style casting when needed. * Look for opportunities where tuples could be used. * The code listing is in C and C++. If there are logic or syntax problems, please fix. char algorithm1(char c,int s) {     if (isalpha(c))     {         c = toupper(c);         c = (((c - 65) + s) % 26) + 65;     }     return c; } int algorithm2(string input) {     do     {         string output = "";         int shift = rand() % 26;         for (int x = 0; x < input.length(); x++)             output += algorithm1(input[x],shift);         cout << output << endl;     }     while (!input.length() == 0); }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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use Advanced C++ techniques, containers and features to refactor the C/C++ algorithm.  The purpose is to
replace appropriate declarations and code segments with Advanced C++ declarations and code.

* Replace all arrays with appropriate STL containers.

* Use STL algorithms to REPLACE existing logic where appropriate.

* Use smart and move pointers where pointers are needed. 

* Use lambda expressions where appropriate.

* Use C++ style casting when needed.

* Look for opportunities where tuples could be used.

* The code listing is in C and C++.

If there are logic or syntax problems, please fix.

char algorithm1(char c,int s)
{
    if (isalpha(c))
    {
        c = toupper(c);
        c = (((c - 65) + s) % 26) + 65;
    }
    return c;
}

int algorithm2(string input)
{
    do
    {
        string output = "";
        int shift = rand() % 26;
        for (int x = 0; x < input.length(); x++)
            output += algorithm1(input[x],shift);
        cout << output << endl;
    }
    while (!input.length() == 0);

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