def has$\_$ship$[$fleet grid: list$[1$ist$[$str$]],$ fow$\_$start: int, col$\_$start: int,

ship$\_$syntol: str$,$ ship$\_$sizer int$)$ bool:

wauneturn True if and only if a ship that $(1)$ uses ship$\_$symbol as its thip

symool and $(2)$ has length ship$\_$size appears in fleet onid starting at

position $($row start, col$\_$start$),$ where $($rou$\_$start, col$\_$start$)$ is the

top$-$most$/$luft$-$most correr of the ship.

If the ship has ship$\_$size $z$ or more and appears as both a colum and a row,

return False.

Preconditions:

$=1i(i,j)==1-8rlee{t}_r$rid