Submission #1086341

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086341		SnowRaven52	Balloons (CEOI11_bal)	C++17	100 / 100	412 ms	14928 KiB

bal

#include <bits/stdc++.h>

using namespace std;

int main(){
    // freopen("main.in", "r", stdin);
    // freopen(".out", "w", stdout);
    long long n; cin >> n;
    long double x[n], r[n], r_f[n];
    for (long long i = 0; i < n; i++) cin >> x[i] >> r[i];
    stack<long long> st;
    for (long long i = 0; i < n; i++){
        while (st.size()) {
            long double rad = (x[i] - x[st.top()]) * (x[i] - x[st.top()]) / (4 * r_f[st.top()]);
            r[i] = min(r[i], rad);
            if (r[i] >= r_f[st.top()]) {
                st.pop();
                continue;
            } else break;
        }
        r_f[i] = r[i];
        st.push(i);
    }
    cout << fixed << setprecision(3);
    for (long long i = 0; i < n; i++) cout << r_f[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