Submission #952391

#	Time	Username	Problem	Language	Result	Execution time	Memory
952391		veljko	Balloons (CEOI11_bal)	C++17	10 / 100	210 ms	19576 KiB

bal

/*****from dust I have come, dust I will be*****/
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
 
using namespace __gnu_pbds;
using namespace std;
#define int long long
#define forn(i,n) for(int i=0;i<n;i++)
int dx[8] = { 1, 0, -1, 0, -1, 1, -1, 1 };
int dy[8] = { 0, 1, 0, -1, -1, 1, 1, -1 };
int ceil_div(int a, int b) {return a % b == 0 ? a / b : a / b + 1;}
 
const int MOD = 1000000007;
//const int MOD = 998244353;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds; // find_by_order, order_of_key
 
/*
int k = A.order_of_key(p[i].second);
A.erase(A.find_by_order(k));
erase element from pbds multiset
*/


void solve(){
    int n; cin >> n;
    vector<pair<double, double>>a(n);
    for (auto &t : a) cin >> t.first>>t.second;
    vector<double>ans;
    ans.push_back(a[0].second);
    multiset<pair<double, double>, greater<pair<double, double>>>skup;
    skup.insert({a[0].second, a[0].first});
    for (int i=1;i<n;i++){
        double mn = 1e15;
        double y = (*skup.begin()).first;
        double x = (*skup.begin()).second;
        mn = min(mn, (a[i].first - x) * (a[i].first - x) / (4.0 * y));
        mn = min(mn, a[i].second);
        ans.push_back(mn);
        skup.insert({mn, a[i].first});
    }
    for (auto t : ans){
        cout << fixed <<setprecision(3);
        cout <<t<<'\n';
    }
}
 
 
int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
 

 
    int t = 1; //cin >>t;
    for (int i=1;i<=t;i++){
        solve();
    }
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10