$$ QK$090$ O def odd zeroes $($arr$)$: arr $=[$i for i in arr if i $\%2==1]$ O def odd zeroes $($arr$)$: arr$[$i$\%2==1$ i $($len $($arr$))]=0$ def odd$\_$zeroes $($arr$)$: i in range $(1,$ len $($arr$),2)$: arr$[$i$]=0$ O def odd$\_$zeroes $($arr$)$: $$ i $($len $($arr$))$: $$ arr $1$