Monikulmio

n, m, k = map(int, input().split())
o=0
points=[]
for i in range(k):
    x, y = map(int, input().split())
    points.append([x-1, y-1])
lista = [['.' for _ in range(m)] for _ in range(n)]
for y, x in points:
    lista[y][x] = '*'
def viiva(p1, p2):
    y1, x1=p1
    y2, x2=p2
    dy=y2-y1
    dx=x2-x1
    sy = 0 if dy == 0 else (1 if dy > 0 else -1)
    sx = 0 if dx == 0 else (1 if dx > 0 else -1)
    if dy == 0:
        for x in range(x1, x2 + sx, sx):
            if lista[y1][x] != '*':
                lista[y1][x] = '='
    elif dx == 0:
        for y in range(y1, y2 + sy, sy):
            if lista[y][x1] != '*':
                lista[y][x1] = '|'
    elif abs(dy) == abs(dx):
        x, y = x1, y1
        while x != x2 + sx and y != y2 + sy:
            if lista[y][x] != '*':
                if (dx > 0 and dy > 0) or (dx < 0 and dy < 0):
                    lista[y][x] = '\\'
                else:
                    lista[y][x] = '/'
            x += sx
            y += sy
for i in range(k):
    p1 = points[i]
    p2 = points[(i + 1) % k]
    viiva(p1, p2)
for i in range(n):
    for j in range(m):
        if j==m-1:
            print(lista[i][j])
        else:
            print(lista[i][j], end="")

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