Submission #973797

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9737972024-05-02 11:02:30efedmrlrTriangles (CEOI18_tri)C++17
0 / 100
1 ms348 KiB
#include <bits/stdc++.h>
#include "trilib.h"
#define lli long long int
#define ld long double
#define pb push_back
#define MP make_pair
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define REP(i, n) for(int i = 0; (i) < (n); (i)++)
using namespace std;
void fastio() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
}
int n;
void find_hull(vector<int> &p, vector<int> &hull) {
if(p.size() < 3) return;
int piv = p[0];
p.erase(p.begin());
auto comp = [&piv](int x, int y) {
return is_clockwise(piv, x, y);
};
sort(all(p), comp);
hull.clear();
hull.pb(piv);
hull.pb(p[0]);
for(int i = 2; i < p.size(); i++) {
 
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Compilation message (stderr)

tri.cpp: In function 'void find_hull(std::vector<int>&, std::vector<int>&)':
tri.cpp:30:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i = 2; i < p.size(); i++) {
      |                    ~~^~~~~~~~~~
tri.cpp: In function 'void solve()':
tri.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int i = 1; i < hull1.size(); i++) {
      |                    ~~^~~~~~~~~~~~~~
tri.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |     for(int i = 1; i < hull2.size(); i++) {
      |                    ~~^~~~~~~~~~~~~~
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