I've written the code but it's not working.
Code is as follows:
while(i<size && c!='\n')
Your i has radom value at the start. ALWAYS set initial values for variables to avoid problems.
Variable without a value does not mean it will be 0 or anything else that you expect.
Ok ! But still it's not working. Actually the loop is not terminating whether I press 'enter' or the size limit exceeds. And Hence the entered loop is not displayed at the end.
cin is whitespace delimited, so any whitespace (including \n) will be discarded. c will never be \n.
You can use the getline method to get the line, then istringstream to get formatted input from the line. Or alternatively use C function fgets.
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