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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* sort_few.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dkaiser <dkaiser@student.42heilbronn.de +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/04/27 14:24:54 by dkaiser #+# #+# */
/* Updated: 2024/04/27 15:13:03 by dkaiser ### ########.fr */
/* */
/* ************************************************************************** */
#include "push_swap.h"
void sort_three(t_psdata *data)
{
if (data->a->stack[1] > data->a->stack[0]
&& data->a->stack[1] > data->a->stack[2])
run_command(data, RRA);
else if (data->a->stack[0] > data->a->stack[1]
&& data->a->stack[0] > data->a->stack[2])
run_command(data, RA);
if (data->a->stack[0] > data->a->stack[1])
run_command(data, SA);
}
static int get_min_pos(t_stack *stack)
{
int i;
int min;
i = 0;
min = 2147483647;
while (i < stack->size)
{
if (stack->stack[i] < min)
min = stack->stack[i];
i++;
}
i = 0;
while (stack->stack[i] != min)
i++;
return (i);
}
static void rotate_a_n(t_psdata *data, int n)
{
if (n < (data->a->size + 1) / 2)
{
while (n--)
run_command(data, RA);
}
else
{
n = data->a->size - n;
while (n--)
run_command(data, RRA);
}
}
static void reinsert_nbrs(t_psdata *data)
{
int i;
while (data->b->size > 0)
{
if (data->b->stack[0] >= data->a->size)
{
run_command(data, PA);
run_command(data, RA);
}
else
{
i = 0;
while (i < data->a->size && data->b->stack[0] > data->a->stack[i])
i++;
rotate_a_n(data, i);
run_command(data, PA);
if (data->a->stack[0] != data->b->stack[0] - 1)
rotate_a_n(data, get_min_pos(data->a));
}
}
}
void sort_few(t_psdata *data)
{
if (data->a->stack[0] == data->a->size - 1)
run_command(data, RA);
while (data->a->size > 3)
run_command(data, PB);
if (data->b->stack[0] > data->b->stack[1])
run_command(data, SB);
sort_three(data);
reinsert_nbrs(data);
}
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