Submission #488462

#	Time	Username	Problem	Language	Result	Execution time	Memory
488462		s_jaskaran_s	Balloons (CEOI11_bal)	C++17	100 / 100	507 ms	8348 KiB

bal

#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
typedef tree<pair<int,int>,null_type,less<pair<int,int>>,rb_tree_tag,
tree_order_statistics_node_update> indexed_set;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin>>n;
    ld a[n];
    ld r[n];
    vector<pair<ld,ld>> s;
    for(int i=0;i<n;i++){
        cin>>a[i];
        ld l;
        cin>>l;
        if(i==0){
            r[i]=l;
        }
        else{
            r[i]=l;
            while(s.size()){
                r[i]=min(r[i],((a[i]-s.back().first)*(a[i]-s.back().first))/(4*s.back().second));
                if(s.back().second<=r[i]){
                    s.pop_back();
                }
                else{
                    break;
                }
            }
        }
        s.push_back({a[i],r[i]});
        cout<<fixed<<setprecision(3)<<r[i]<<endl;
    }
    
}    

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