oj.uz

답안 #227474

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
227474 2020-04-27T14:09:38 Z cgiosy 곡선 자르기 (KOI17_cut) C++17
0 / 100
 5 ms 384 KB 
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(0);
	int N, sx, sy, px, py, qx;
	cin>>N>>sx>>sy; px=qx=sx, py=sy;
	set<int> A;
	for(int i=N; i--;) {
		int x, y;
		if(i) cin>>x>>y;
		else x=sx, y=sy;
		if((y>0)!=(py>0) || !i && py>0) {
			if((i ? y<0 : y>0) && qx!=x) {
				A.insert(min(qx, x)*2);
				A.insert(max(qx, x)*2+1);
			}
			qx=x;
		}
		px=x, py=y;
	}
	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:14:26: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if((y>0)!=(py>0) || !i && py>0) {
                       ~~~^~~~~~~
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 5 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 Incorrect 5 ms 384 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 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 Incorrect 5 ms 384 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 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 Incorrect 5 ms 384 KB Output isn't correct
8 Halted 0 ms 0 KB -