Submission #2096656

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Source Code Expand

H,W,N = map(int,input().split())
hs = set()
vs = set()
for i in range(N):
    r,c = map(int,input().split())
    if c > 1:
        hs.add((r,c-1))
    if c < W:
        hs.add((r,c))
    if r > 1:
        vs.add((r-1,c))
    if r < H:
        vs.add((r,c))
whole = H*(W-1) + (H-1)*W
print(whole - len(hs) - len(vs))

Submission Info

Judge Result