sos..............

If I could change the alphabets I would put U and I together

If I could change the alphabets I would put U and I together

Using Pseudocode:

// Set up arrays for the professions and people

Professions = array('Chemist', 'Author', 'Doctor', 'Biologist');
People = array('Mohit', 'Rajesh', 'Samarth', 'Udit');

// Initialise loop counter variables

k = 0;
j = 0;

// Loop through all people professions and set all values to 0

while k < length(Professions)
while j < length(People)
Matrix[k][j] = 0;
j++;
k++;

// Fill in the information available, setting true to 1, false to -1
// The example below uses named references for clarity, but you would need to find the numeric array reference that corresponds with the text in the profession and people arrays.

Matrix['Biologist']['Udit'] = -1 // Udit is speaking to the biologist
Matrix['Biologist'['Samarth'] = -1 // The biologist is told about Samarth
Matrix['Doctor']['Mohit'] = -1 // Mohit is across from the Doctor
Matrix['Chemist']['Mohit'] = -1 // Mohit is next to the Chemist
Matrix['Doctor']['Rajesh'] = -1 // The doctor is presumably called Rajesh
Matrix['Doctor']['Samarth'] = -1 // Samarth is on his way home so cannot be sitting across from Mohit
Matrix['Chemist']['Samarth'] = -1 // Samarth is on his way home so cannot be sitting next to Mohit

// From here, create function CheckLine() to search for
// (a) a value of 1 in a row or column, and call a function to set the rest of the row or column to -1 (one person per role)
// (b) three values of -1, meaning that the fourth value must be 1 (at least one of the four people must fill the role)
// $row is passed as a parameter to switch from checking values in rows to values in columns.

CheckLine($row = True)
{
$tempcounter = 0; // used to check for completeness, reset each function call

// check for rows/columns that do not have a value equivalent to 0 (===), and if so, increment $tempcounter by 1
// else if the row/column has a value of 1, ensure all other values in that row and column are set to -1
// else if the count of '-1' in the row/column is (n-1), in this case 3, set the remaining value to 1 and mark all other column/row values to -1
// if all rows are checked, and the counter equals the number of rows, the program can end, otherwise call CheckRows recursively, alternating between row and column, to start again. E.g.
// if $row == True: CheckLine(False); else CheckLine(True);
}

The result is as follows:

1. Samarth is not a biologist, doctor or chemist, so must be an author.
2. The doctor is not Samarth, Mohit or Rajesh, so must be Udit.
3. Once the appropriate values are set to 1, a subsequent loop will place a value of -1 for Udit as a chemist/author, and Mohit/Rajesh as an author.
4. Mohit becomes the biologist, and Rajesh becomes the chemist.
5. The remaining entry for Rajesh vs the biologist is marked as -1 and the program can end.

The program can be extended by counting the number of names and roles.

---

Any programmer chicks out there?

Hahaha....Your old lady's gonna need a strong back...and a lot of endurance...