click here to view the Fortran pgm for today's assignment

Instructions on how to run the fortran pgm p235.f90

• Make a directory called fortran, to compile and run fortran programs here!
  $ mkdir fortran
  
• Goto the directory fortran
  $ cd fortran
  
• Copy the fortran program , by using the cp command
  $ cp ~abhay/fortran/p235.f90 .
  
• The compiler to compile this program is f90 Compile the program.
  $ f90 p235.f90
  
• Find the executable file a.out created by using ls
  $ ls
  
• Now execute the program
  $ ./a.out
  
• Type in a number.
  
  Now do the following:
  
• Read the fortran code p235.f90.
  
• Follow the instructions given above to run the pgm.
  
• Note down the time taken to run the pgm.
  
• The above program prints the first N 235 numbers where N is the number read in.
  A 235 number is a number which is completely divisible by 2 , 3 and 5 alone.
  a) Find out the 153rd, 247th (235)numbers.
• Now modify the given program to incorporate the following changes.
  b) Change the program to find first N numbers divisible by 7 and 11 alone.
  c) [OPTIONAL] Find how many numbers are lesser than a number X(which is to be read in)
  
• Mail the modified programs to your TA