제출 #670283

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
670283		RadicaI	Mobile (BOI12_mobile)	C++17	컴파일 에러	0 ms	0 KiB

mobile

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
	cout.precision(7);
	int n,siz; cin >> n>>siz;
	pair<ll, ll> stations[n];
	for(int i=0; i<n; i++) cin >> stations[i].first >> stations[i].second;
e9;
	while(r - l > 1e-3){
		double m = (l+r)/2.0;
		double store=0;
		for(int i=0; i<n; i++){
			double ph = stations[i].first + sqrt(m*m-stations[i].second*stations[i].second);
			double pl = stations[i].first - sqrt(m*m-stations[i].second*stations[i].second);
			if(pl<=store) store = max(store, ph);					
        }
		if(store>=siz) r=m;
		else l=m;
		
	}
	cout << l;
}

컴파일 시 표준 에러 (stderr) 메시지

mobile.cpp: In function 'int main()':
mobile.cpp:9:1: error: 'e9' was not declared in this scope
    9 | e9;
      | ^~
mobile.cpp:10:8: error: 'r' was not declared in this scope
   10 |  while(r - l > 1e-3){
      |        ^
mobile.cpp:10:12: error: 'l' was not declared in this scope
   10 |  while(r - l > 1e-3){
      |            ^
mobile.cpp:22:10: error: 'l' was not declared in this scope
   22 |  cout << l;
      |          ^