Print matrix in antispiral form | Javascript Code for Print matrix in antispiral form ; k - starting row index m - ending row index l - starting column index n - ending column index i - iterator ; Print the first row from the remaining rows ; Print the last column from the remaining columns ; Print the last row from the remaining rows ; Print the first column from the remaining columns ; Driver program to test above function
function antiSpiralTraversal ( m , n , a ) { let i , k = 0 , l = 0 ; let stk = [ ] ; while ( k <= m && l <= n ) { for ( i = l ; i <= n ; ++ i ) stk . push ( a [ k ] [ i ] ) ; k ++ ; for ( i = k ; i <= m ; ++ i ) stk . push ( a [ i ] [ n ] ) ; n -- ; if ( k <= m ) { for ( i = n ; i >= l ; -- i ) stk . push ( a [ m ] [ i ] ) ; m -- ; } if ( l <= n ) { for ( i = m ; i >= k ; -- i ) stk . push ( a [ i ] [ l ] ) ; l ++ ; } } while ( stk . length != 0 ) { document . write ( stk [ stk . length - 1 ] + " " ) ; stk . pop ( ) ; } } let mat = [ [ 1 , 2 , 3 , 4 , 5 ] , [ 6 , 7 , 8 , 9 , 10 ] , [ 11 , 12 , 13 , 14 , 15 ] , [ 16 , 17 , 18 , 19 , 20 ] ] ; antiSpiralTraversal ( mat . length - 1 , mat [ 0 ] . length - 1 , mat ) ;