SUBEX-Placement Paper-17 June 2007

SUBEX PAPER ON 17th JUNE AT BANGALORE

hi, i gave my subex test.it was easy.waiting for results.well,these are the questions.
30 min(c technical)+30 min(c program)

The program were on  FILES.
1.write a program,to replace the strings in a file.The programs are provided with the command line agruments,arguments are string to be searched ,string which is replaced n output to another file.
eg: in a file "str1" string is searched n should be replaced by "str2" in the output file.
2.write a program using files,in a file search for string 'a' and if it is followed by a vowel then,replace 'a' by 'an' n save it to another file.
3.in a file,reverse the entire line and check if palindrome words are present.
4.write a program on file redundency .

objective c questions were from pointers,arrays.

I  hope this will help u people. ALL THE BEST.............
Geetha