Monikulmio

n, m, k = map(int, input().split()) # korkeus, leveys, lkm
points = [tuple(map(int, input().split())) for _ in range(k)]
grid = [['#' for _ in range(m)] for _ in range(n)]

for i in range(k):
    y1, x1 = points[i]
    y2, x2 = points[(i + 1) % k]

    dy = (y2 > y1) - (y2 < y1)
    dx = (x2 > x1) - (x2 < x1)
    y, x = y1, x1

    while True:
        grid[y-1][x-1] = '*' if (y, x) in points else (
            '=' if dy == 0 else
            '|' if dx == 0 else
            '\\' if dy == dx else
            '/')
        if (y, x) == (y2, x2):
            break
        y += dy
        x += dx

def flood_fill(grid, y, x):
    height = len(grid)
    width = len(grid[0])
    if y < 0 or y >= height or x < 0 or x >= width:
        return
    if grid[y][x] != "#":
        return
    grid[y][x] = "."

    flood_fill(grid, y + 1, x)
    flood_fill(grid, y - 1, x)
    flood_fill(grid, y, x + 1)
    flood_fill(grid, y, x - 1)

flood_fill(grid, 0 ,0)
for row in grid:
    print("".join(row))

Test 1 (public)

Verdict: ACCEPTED

Test 2 (public)

Verdict: ACCEPTED

Test 3 (public)

Verdict: ACCEPTED

Test 4 (public)

Verdict: ACCEPTED

Test 5 (public)

Verdict: ACCEPTED

Test 6 (public)

Verdict: ACCEPTED

Test 7 (public)

Verdict: ACCEPTED

Test 8 (public)

Verdict: ACCEPTED

Test 9 (public)

Verdict: ACCEPTED

Test 10 (public)

Verdict: ACCEPTED