oj.uz

답안 #119299

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
119299 2019-06-21T02:15:15 Z tmwilliamlin168 Printed Circuit Board (CEOI12_circuit) C++14
0 / 100
 66 ms 20860 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int mxN=1e5;
int n, b[mxN], c[mxN+1], e1[mxN], e2[mxN];
array<ll, 2> a[mxN+1];
vector<int> va[mxN], vr[mxN], vp[mxN], ans;

bool cw(int x, int y, int z) {
	return (a[z][1]-a[x][1])*(a[y][0]-a[x][0])<(a[y][1]-a[x][1])*(a[z][0]-a[x][0]);
}

bool pcmp(const int &i, const int &j) {
	return a[i][1]*a[j][0]<a[j][1]*a[i][0];
}

struct scmp {
	bool operator()(const int &i, const int &j) const {
		if(e1[i]==e1[j])
			return c[e2[i]]<c[e2[j]]?!cw(e1[j], e2[j], e2[i]):cw(e1[i], e2[i], e2[j]);
		return c[e1[i]]<c[e1[j]]?cw(e1[i], e2[i], e1[j]):!cw(e1[j], e2[j], e1[i]);
	}
};
set<int, scmp> s;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	cin >> n;
	for(int i=0; i<n; ++i)
		cin >> a[i][0] >> a[i][1];
	//a[n]=a[0];
	iota(b, b+n, 0);
	sort(b, b+n, pcmp);
	for(int i=0; i<n; ++i) {
		c[i]=lower_bound(b, b+n, i, pcmp)-b;
		//vp[c[i]].push_back(i);
	}
	//c[n]=c[0];
	return 0;
	for(int i=0; i<n; ++i) {
		e1[i]=i;
		e2[i]=i+1;
		if(c[e2[i]]<c[e1[i]])
			swap(e1[i], e2[i]);
		if(c[e1[i]]<c[e2[i]]) {
			va[c[e1[i]]].push_back(i);
			vr[c[e2[i]]].push_back(i);
		}
	}
	for(int i=0; i<n; ++i) {
		for(int j : vr[i])
			s.erase(j);
		for(int j : va[i])
			s.insert(j);
		int mj=-1;
		for(int j : vp[i])
			if(mj<0||a[j][0]+a[j][1]<a[mj][0]+a[mj][1])
				mj=j;
		if(~mj&&(!s.size()||!cw(e1[*s.begin()], e2[*s.begin()], mj)))
			ans.push_back(mj);
	}
	cout << ans.size() << "\n";
	sort(ans.begin(), ans.end());
	for(int a : ans)
		cout << a+1 << " ";
}

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 7 ms 7424 KB Output isn't correct
2 Incorrect 8 ms 7424 KB Output isn't correct
3 Incorrect 9 ms 7552 KB Output isn't correct
4 Incorrect 10 ms 7552 KB Output isn't correct
5 Incorrect 12 ms 7680 KB Output isn't correct
6 Incorrect 12 ms 7680 KB Output isn't correct
7 Incorrect 17 ms 7808 KB Output isn't correct
8 Incorrect 11 ms 7552 KB Output isn't correct
9 Incorrect 11 ms 7552 KB Output isn't correct
10 Incorrect 13 ms 7680 KB Output isn't correct
11 Incorrect 12 ms 7680 KB Output isn't correct
12 Incorrect 15 ms 7936 KB Output isn't correct
13 Incorrect 27 ms 8056 KB Output isn't correct
14 Incorrect 23 ms 8320 KB Output isn't correct
15 Incorrect 26 ms 8576 KB Output isn't correct
16 Incorrect 44 ms 9720 KB Output isn't correct
17 Incorrect 66 ms 9768 KB Output isn't correct
18 Runtime error 53 ms 20856 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 55 ms 20856 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 55 ms 20860 KB Execution killed with signal 11 (could be triggered by violating memory limits)