Monikulmio

info,*coords=[tuple(map(int,l.split())) for l in open(0)]
line=["."]*(info[1]*2)
grid=[line.copy() for _ in range(info[0]*2)]
for i in range(info[2]):
    (oldx,oldy),(x,y)=coords[i-1],coords[i]
    oldx,oldy,x,y=(oldx-1)*2,(oldy-1)*2,(x-1)*2,(y-1)*2
    grid[x][y]="*"
    if oldy==y:
        j=1
        while j<abs(oldx-x):
            grid[min(x,oldx)+j][y]="|"
            j+=1
    elif oldx==x:
        j=1
        while j<abs(oldy-y):
            grid[x][min(y,oldy)+j]="="
            j+=1
    elif (oldx>x) == (oldy>y): 
        j=1
        while j<abs(oldy-y):
            grid[min(x,oldx)+j][min(y,oldy)+j]="\\"
            j+=1
    elif oldx>x:
        j=1
        while j<abs(oldy-y):
            grid[min(x,oldx)+j][max(y,oldy)-j]="/"
            j+=1
    else: 
        j=1
        while j<abs(oldy-y):
            grid[max(x,oldx)-j][min(y,oldy)+j]="/"
            j+=1

count=i=0
while count==0:
    if n:=grid[i].count("*"):
        count+=n
    i+=2
while count<info[2]:
    j=0
    while j<info[1]*2:
        if grid[i][j]==".":
            if j==0 or grid[i][j-2]==".":
                j+=2
                continue
            elif grid[i][j-2]=="#":
                grid[i][j]="#"
            else:
                n=x=0
                while x<j:
                    n+=(grid[i-1][x] in "/|\\")
                    x+=1
                grid[i][j]=".#"[n%2]
        elif grid[i][j]=="*":
            count+=1
            if count==info[2]: break
        j+=2
    i+=2
        
    
print(*["".join(l[::2]) for l in grid[::2]],sep="\n")

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