시간 제한메모리 제한제출정답맞힌 사람정답 비율
1 초 128 MB3941629939.442%

문제

오늘은 복날이다!

해빈이는 복날을 맞아 순살치킨 파티를 하기 위해 닭을 잡으려고 한다. 하지만 이번에도 쉽게 잡힐까보냐. 용감한 닭 한 마리가 해빈이에게서 도망치려 한다. 닭은 v m/sec의 속도로 이동할 수 있고, (xs, ys)에서 (xt, yt)에 존재하는 벙커까지 이동하면 해빈이에게서 도망칠 수 있다. 하지만 닭이 m분 이상 벙커 밖을 돌아다닌다면 바로 해빈이에게 잡혀 치킨이 되고 말 것이다.

과연 닭은 해빈이에게서 도망칠 수 있을까?

입력

첫 번째 줄에는 닭의 속도 v와 생존 가능 시간 m이 주어진다. 두 번째 줄에는 닭의 시작 위치 xs와 ys가 공백을 사이에 두고 주어지며, 세 번째 줄에는 목적지의 위치 xt, yt가 주어진다.

그 다음부터는 중간 지점에 존재하는 벙커들의 좌표 x y가 주어진다.

모든 단위는 m(미터, meter)이다. 중간 지점에 존재하는 벙커들의 개수는 1,000개 이하이고, 모든 좌표의 범위는 -10,000에서 +10,000이다.

출력

만약 닭이 해빈이에게서 도망치는데 성공한다면, 출력은 "Yes, visiting n other holes."이라고 해야 한다(이때 n은 거쳐야 하는 중간 지점 벙커의 최소 개수이다). 한편 닭의 미래가 처참하다면 "No."를 출력하면 된다.

예제 입력 1

3 1
0.000 0.000
500.000 0.000
179.000 0.000
358.000 0.000

예제 출력 1

Yes, visiting 2 other holes.
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

출처

ICPC > Regionals > North America > Rocky Mountain Regional > Alberta Collegiate Programming Contest > ACPC 1999 D번