Solutions to Part 1 only a. C++ program may contains two more main functions as

Question

Solutions to Part 1 only

a. C++ program may contains two more main functions as needed? b. We can declare arrays with different data type elements? If we declare int a[71and try to access al8] there will be no compiled error? d. Void functions are functions that return always a 0? e. If the number of iterations in a loop is unknown, you can use the for loop? f C++ allow aggregate operations on an array (ex array -array2) 2) The faulty program below supposed to read in a phrase and output the phrase in reverse order. Th are 3 errors in the code below. Correct the emors by referencing the line numbers along the left side include include

Explanation / Answer

Please follow the code and comments for description :

CODE :

#include <iostream>
#include <string>

using namespace std;

int main()
{
   string s1,s2;
   int i;
   cout << "Enter any the string :";
   cin >> s1;i=0;
   i = s1.length() -1;
   while(i >= 0)
   {
       s2 = s2 + s1.substr(i, i - 1);
   }
   cout<<"Reverse string is: "<< s2;
   return 0;
}

In the above code the errors are in the lines 6,8,10.

Here the code reads a string and that return the reverse of the phrase but this could not be achieved as above as the code do not know the size of the string that it is to be read and that the console till waits for the user to enter the data which is a never ending process. So this needs to be replaced with the char array as shown below. This is a pre-defined size of the array that reads the respective data and that return the reverse phrase.

CODE :

#include <iostream>
#include <string>

using namespace std;

int main()
{
   char str[5],temp;
   int i,j=0;
   cout << "Enter any the string :";
   cin >> str; // input string
   i=0;
   j = sizeof(str) -1;
   while(i<j) // iterate till the end
   {
       temp=str[i]; // swap the data
       str[i]=str[j];
       str[j]=temp;
       i++;
       j--;
   }
   cout<<"Reverse string is: "<< str << endl; // print to console
   return 0;
}

OUTPUT :

Enter any the string :Michael
Reverse string is: leahciM

Hope this is helpful.

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