public static void main ( String [ ] args ) {
  String mat [ ] = {
    "0101" , "0101" , "0101" };
    int r = mat . length ;
    int c = mat [ 0 ] . length ( ) ;
    System . out . print ( minFlips ( mat , r , c ) ) ;
  }
  
public static void main ( String [ ] args ) { String mat [ ] = { "0101" , "0101" , "0101" } ; int r = mat . length ; int c = mat [ 0 ] . length ( ) ; System . out . print ( minFlips ( mat , r , c ) ) ; }
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