제출 #462534

#제출 시각아이디문제언어결과실행 시간메모리
462534PandaZGV2Balloons (CEOI11_bal)C++17
100 / 100
182 ms8480 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long int ull; typedef long int li; typedef vector<int> vi; typedef pair<int, int> pi; #define f first #define s second #define pb push_back #define mp make_pair #define modint int(1e9 + 7) #define mod 1e9 + 7 #define Inf INFINITY // =============================Graph Agorithms================================== // vector<bool> visited; // void dfs(int v) // { // visited[v] = true; // for (int u : adj[v]) // { // if (!visited[u]) // dfs(u); // } // } // vector<vector<int>> adj; // adjacency list representation // int n; // number of nodes // int s; // source vertex // queue<int> q; // vector<bool> used(n); // vector<int> d(n), p(n); // q.push(s); // used[s] = true; // p[s] = -1; // while (!q.empty()) // { // int v = q.front(); // q.pop(); // for (int u : adj[v]) // { // if (!used[u]) // { // used[u] = true; // q.push(u); // d[u] = d[v] + 1; // p[u] = v; // } // } // } #define loop(n) for (int i = 0; i < n; i++) #define rep(i, a, n) for (int i = a; i < n; i++) #define file_read \ freopen("input.txt", "r", stdin); \ freopen("output.txt", "w", stdout); #define tc \ int t; \ cin >> t; \ while (t--) #define endl "\n" #define iamspeed \ ios::sync_with_stdio(false); \ cin.tie(0); \ cout.tie(0); int main(void) { iamspeed; int n; cin >> n; vector<pi> a(n); for(int i=0;i<n;i++) { cin >> a[i].f >> a[i].s; } vector<double> radius(n); stack<int> s; for(int i=0;i<n;i++) { double sz = a[i].s; while(!s.empty()) { int top = s.top(); sz = min(sz, pow(a[top].f - a[i].f,2)/(radius[top] * 4)); if(sz >= radius[top]) { s.pop(); } else { break; } } s.push(i); radius[i] = sz; } for(int i=0;i<n;i++) { cout << fixed << setprecision(3); cout << radius[i] << endl; } return 0; }
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