답안 #227452

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
227452	2020-04-27T13:29:04 Z	cgiosy	곡선 자르기 (KOI17_cut)	C++17	0 / 100	5 ms	384 KB

cut

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	int N, sx, sy, px, py, qx;
	cin>>N>>sx>>sy; px=qx=sx, py=sy;
	vector<int> A;
	A.reserve(N/2+2);
	for(int i=N; i--;) {
		int x, y;
		if(i) cin>>x>>y;
		else x=sx, y=sy;
		if(i ? (y>0)!=(py>0) : (y>0)==(py>0)) {
			if((i ? y<0 : y>0) && qx!=x) {
				A.push_back(min(qx, x)*2);
				A.push_back(max(qx, x)*2+1);
			}
			qx=x;
		}
		px=x, py=y;
	}
	sort(begin(A), end(A));
	int a=0, b=0, c=0, p=0;
	for(int x:A) {
		if(x%2) a+=!--c, b+=!p, p=1;
		else c++, p=0;
	}
	cout<<a<<' '<<b;
}

Compilation message

cut.cpp: In function 'int main()':
cut.cpp:7:17: warning: variable 'px' set but not used [-Wunused-but-set-variable]
  int N, sx, sy, px, py, qx;
                 ^~

Subtask #1

0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Incorrect	5 ms	384 KB	Output isn't correct

Subtask #2

0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Incorrect	5 ms	384 KB	Output isn't correct

Subtask #3

0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Incorrect	5 ms	384 KB	Output isn't correct