이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iomanip>
#include <cmath>
using namespace std;
const int M = 200005;
int n, top;
double x[M], r[M], q[M];
double Cal(int i, int j) {
return (x[i] - x[j]) * (x[i] - x[j]) / (4 * r[j]);
}
int main() {
cin >> n;
for(int i = 1; i <= n; i++) cin >> x[i] >> r[i];
for(int i = 1; i <= n; i++) {
while(top) {
int j = q[top];
r[i] = min(r[i], Cal(i,j));
if(r[i] >= r[j]) top--;
else break;
}
q[++top] = i;
}
for(int i = 1; i <= n; i++) cout << fixed << setprecision(5) << r[i] << endl;
return 0;
}
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