51 const int MAXN = 1000; 52 point A[MAXN]; 53 54 int main() { 55 int n; 56 cin >> n; 57 for (int i = 0; i < n; i++) { 58 cin >> A[i].x >> A[i].y; 59 A[i].id = i; 60 } 61 sort(A, n); 62 n = unique(A, n); 63 int ans = 0; 64 for ...