indent

//before

    #include <stdio.h>
 #include <stdlib.h>


int main (int argc, char **argv){

int v1 =       0;
    int v2 = 1;
char c    =    'y';

printf  ("%c\n",      c      );

         printf("%d\n",v1);

    printf("%d\n",     v2 );


return 0;}

//after
//indent main.c -o main1.c

#include <stdio.h>
#include <stdlib.h>


int
main (int argc, char **argv)
{

  int v1 = 0;
  int v2 = 1;
  char c = 'y';

  printf ("%c\n", c);

  printf ("%d\n", v1);

  printf ("%d\n", v2);


  return 0;
}