Submission #288869

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
288869	2020-09-02 03:38:26	rama_pang	Dragon 2 (JOI17_dragon2)	C++14	100 / 100	1004 ms	10872 KiB

dragon2

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#include <bits/stdc++.h>
using namespace std;
using Point = complex<long long>;
long long Dot(Point a, Point b) {
  return real(conj(a) * b);
}
long long Cross(Point a, Point b) {
  return imag(conj(a) * b);
}
bool Clockwise(Point a, Point b, Point c) {
  return Cross(b - a, c - a) > 0;
}
bool CounterClockwise(Point a, Point b, Point c) {
  return Cross(b - a, c - a) < 0;
}
namespace std {
template<class T>
istream& operator>>(istream &is, complex<T> &inp) {
  T a, b;
  is >> a >> b;
  inp = complex<T>(a, b);
  return is;
}
bool operator<(Point p, Point q) {
  return Cross(p, q) > 0;
 
 
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Compilation message (stderr)

dragon2.cpp: In function 'int main()':
dragon2.cpp:118:27: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'const int' [-Wsign-compare]
  118 |     if (query_a[i].size() >= SQRT) {
      |         ~~~~~~~~~~~~~~~~~~^~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 45 / 45
• Subtask 3: 40 / 40