Submission #5908157

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Source Code Expand

n = int(input())
s = []
for _ in range(n):
    x, y = map(int, input().split())
    s.append([x, y])
ans = 0
for i in range(n):
    for j in range(i+1, n):
        for k in range(j+1, n):
            calc = (((s[k][0] - s[i][0]) * (s[j][1] - s[i][1])) - ((s[j][0] - s[i][0]) * (s[k][1] - s[i][1])))
            if (calc % 2 == 0) & (calc != 0):
                ans += 1
print(ans)

Submission Info

Judge Result