이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
const int nx=2e5+5;
double n, x[nx], dp[nx];
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n;
for (int i=1; i<=n; i++) cin>>x[i]>>dp[i];
stack<pair<int, double>> s;
for (int i=1; i<=n; i++)
{
while (!s.empty())
{
dp[i]=min(dp[i], (((x[i]-x[s.top().first])*(x[i]-x[s.top().first]))/(4*s.top().second)));
if (dp[i]>=s.top().second) s.pop();
else break;
}
printf("%.3f\n", dp[i]);
s.push({i, dp[i]});
}
}
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