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Submission #119298

# Submission time Handle Problem Language Result Execution time Memory
119298 2019-06-21T02:14:07 Z tmwilliamlin168 Printed Circuit Board (CEOI12_circuit) C++14
0 / 100
 65 ms 20856 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

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 7424 KB Output isn't correct
2 Incorrect 9 ms 7424 KB Output isn't correct
3 Incorrect 8 ms 7424 KB Output isn't correct
4 Incorrect 9 ms 7424 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 16 ms 7936 KB Output isn't correct
8 Incorrect 11 ms 7552 KB Output isn't correct
9 Incorrect 10 ms 7552 KB Output isn't correct
10 Incorrect 12 ms 7680 KB Output isn't correct
11 Incorrect 12 ms 7680 KB Output isn't correct
12 Incorrect 14 ms 7808 KB Output isn't correct
13 Incorrect 22 ms 8064 KB Output isn't correct
14 Incorrect 22 ms 8320 KB Output isn't correct
15 Incorrect 26 ms 8696 KB Output isn't correct
16 Incorrect 43 ms 9852 KB Output isn't correct
17 Incorrect 65 ms 9720 KB Output isn't correct
18 Runtime error 52 ms 20856 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 53 ms 20856 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 54 ms 20856 KB Execution killed with signal 11 (could be triggered by violating memory limits)