vibhu mishra

i have a c code for printing all permutation of string. I have a problem in understanding ,how recursion work in for loop and how backtracking is used in this code. Another question is that how stack work in recursion under for loop. my code--> # include <stdio.h> void swap …

i m trying to run a mp3 file on dosbox plateform by c .i put the following code in to the batch file start c:\xyz.mp3 and trying to call this as system("c:/a.bat"), the system funtion is returing 0 but it is not running it. But the same code working well …