Monikulmio

def _print(ls): #to print cordinatic system
    for i in ls:
        for j in i:
            print(j, end="")
        print()
numbs = list(map(int, input().split(" ") )) #1st input
cords = []
syst = [] #creating cordnatic system
for i in range(numbs[0]):
    lis = []
    for _ in range(numbs[1]):
        lis.append(".")
    syst.append(lis)
for _ in range(numbs[2]): #geting cords
    cord = list(map(int, input().split(" ") ))
    cord = [cord[1], cord[0]]
    syst[cord[1]-1][cord[0]-1]="*"
    cords.append(cord)
slashes = {-1 : "/", 1 : "\\"}
for i in range(0,len(cords)):
    if i == len(cords)-1:
        j = 0
    else:
        j = i + 1
    if cords[i][0] == cords[j][0]:
        for n in range(min(cords[j][1], cords[i][1]), max(cords[j][1], cords[i][1])-1):
            syst[n][cords[i][0]-1] = "|"
    elif cords[i][1] == cords[j][1]:
        for n in range(min(cords[j][0], cords[i][0]), max(cords[j][0], cords[i][0])-1):
            syst[cords[i][1]-1][n] = "="
    else:
        signx = int(-1 * abs(cords[i][0]-cords[j][0])/(cords[i][0]-cords[j][0]))
        signy = int(-1 * abs(cords[i][1]-cords[j][1])/(cords[i][1]-cords[j][1]))
        for n in range(1, abs(cords[i][0]-cords[j][0])):
            syst[cords[i][1]+n*signy-1][cords[i][0]+n*signx-1] = slashes[signx*signy]
inside = False
for i in range(numbs[0]):
    for j in range(numbs[1]):
        if syst[i][j] in ["|", "/", "\\"]:
            inside = not inside
        if syst[i][j] == "*" and ("*" in syst[i][j+1:] or inside):
            inside = not inside
        elif inside and syst[i][j] == ".":
            syst[i][j] = "#"
_print(syst)

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