Submission #447699

#	Time	Username	Problem	Language	Result	Execution time	Memory
447699		Sneha_codes	Balloons (CEOI11_bal)	C++14	100 / 100	750 ms	8516 KiB

bal

#include <bits/stdc++.h>
#define f first
#define s second
#define N 200005
#define int long long
using namespace std;
double pos[N],rad[N];
stack<pair<double,double>> st;
double inflate(double x,double r) {
    while (!st.empty()) {
        double x1 = st.top().f, r1 = st.top().s;
        r = min(r, ((x1 - x) * (x1 - x)) / (4 * r1));
        if (r >= r1)
            st.pop();
        else
            break;
    }
    st.push({x, r});
    return r;
}
signed main() {
    int n;
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> pos[i] >> rad[i];
    for (int i = 0; i < n; i++)
        cout << fixed<<setprecision(3)<<inflate(pos[i], rad[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