Submission #1104482

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1104482	2024-10-23 22:51:01	crimson231	Scissors and Tape (CEOI19_scissors)	C++17	100 / 100	8 ms	1100 KiB

scissors

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//NOT MY CODE :: from koosaga (boj)
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using llf = long double;
using pi = pair<int, int>;
using point = complex<llf>;
using polygon = vector<point>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
const int MAXN = 2005;
const llf eps = 1e-8L;
 
lint ccw(pi a, pi b, pi c){
  int dx1 = b.first - a.first;
  int dy1 = b.second - a.second;
  int dx2 = c.first - a.first;
  int dy2 = c.second - a.second;
  return 1ll * dx1 * dy2 - 1ll * dy1 * dx2;
}
lint ccwsgn(pi a, pi b, pi c){
  lint q = ccw(a, b, c);
  if(q != 0) return q > 0 ? 1 : -1;
  return 0;
}
 
bool insec(pi a, pi b, pi c, pi d){
  if(a == c || a == d || b == c || b == d) return 0;
  if(ccwsgn(a, b, c) * ccwsgn(a, b, d) > 0) return 0;
  if(ccwsgn(c, d, a) * ccwsgn(c, d, b) > 0) return 0;
 
 
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Compilation message (stderr)

scissors.cpp: In function 'std::pair<std::vector<answer>, std::vector<std::vector<std::complex<long double> > > > solve()':
scissors.cpp:174:6: warning: unused variable 'W' [-Wunused-variable]
  174 |  llf W = area / R;
      |      ^

• Subtask 1: 5 / 5
• Subtask 2: 13 / 13
• Subtask 3: 12 / 12
• Subtask 4: 14 / 14
• Subtask 5: 10 / 10
• Subtask 6: 16 / 16
• Subtask 7: 11 / 11
• Subtask 8: 19 / 19