Submission #1032464

#	Time	Username	Problem	Language	Result	Execution time	Memory
1032464		FatemehSalimi	Balloons (CEOI11_bal)	C++17	100 / 100	124 ms	10580 KiB

bal

//in the neme of god
#include <bits/stdc++.h>
using namespace std;

stack <int> st;
const int MAX_N = 2e5 + 10;
double n, x[MAX_N], r[MAX_N], ans[MAX_N];


int main(){
    ios_base::sync_with_stdio(0), cin.tie(0);
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> x[i] >> r[i];
        ans[i] = r[i];
        while (st.size()) {
            double tmp = (x[i] - x[st.top()]) * (x[i] - x[st.top()]) / (4. * ans[st.top()]);
            ans[i] = min(ans[i], tmp);
            if (ans[st.top()] < ans[i])
                st.pop();
            else
                break;
        }
        st.push(i);
    }
    for (int i = 0; i < n; i++) 
        cout << fixed << setprecision(3) << ans[i] << '\n';
}

• 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