Submission #1122520

#	Time	Username	Problem	Language	Result	Execution time	Memory
1122520		dosts	Balloons (CEOI11_bal)	C++20	100 / 100	150 ms	6356 KiB

bal

//Dost SEFEROĞLU
#include <bits/stdc++.h>
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
using namespace std;
#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define sp << " " <<    
#define all(cont) cont.begin(),cont.end()
#define vi vector<int>

const int inf = 2e18,MOD = 1e9+7,N = 2e5+1;


void solve() {
    int n;
    cin >> n;
    vi x(n+1),r(n+1);
    for (int i=1;i<=n;i++) cin >> x[i] >> r[i];
    stack<pair<int,double>> stk;
    cout << setprecision(12);
    double four = 4.0;
    for (int i=1;i<=n;i++) {
        int x2 = x[i];
        double maxr = r[i];
        while (!stk.empty()) {
            auto[x1,r1] = stk.top();
            maxr = min(maxr,((double)(x2-x1)*(x2-x1))/(four*r1));
            if (maxr >= r1) stk.pop();
            else break;
        }
        stk.push({x[i],maxr});
        cout << maxr << " ";
    }
}                    
                             
int32_t main() { 
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    #ifdef Dodi
        freopen("in.txt","r",stdin);
        freopen("out.txt","w",stdout);/* 
    #else 
      freopen("fcolor.in","r",stdin);
      freopen("fcolor.out","w",stdout); */
    #endif
    
    int t = 1;
    //cin >> t; 
    while (t --> 0) solve();
}

• 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