Submission #1005055

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005055		Mubaris	Balloons (CEOI11_bal)	C++17	0 / 100	3 ms	524 KiB

bal

#include<bits/stdc++.h>
using namespace std;
#define INF(t) numeric_limits<t>::max()
double f(int a,int b,int c,int d){
    int dist=(b-a)*(b-a);
    double ans=(double)dist/4;ans=(double)ans/d;
    return (ans<=c?ans:0);
}
void solve(){
    int a;cin>>a;
    vector<int> b(a),c(a);
    stack<int> st;
    for(int i=0;i<a;i++) cin>>b[i]>>c[i];
    for(int i=0;i<a;i++){
        double ans=(double)c[i];
        while(!st.empty()&&f(b[i],b[st.top()],c[i],c[st.top()])) {ans=f(b[i],b[st.top()],c[i],c[st.top()]);st.pop();}
        st.push(i);
        cout<<fixed<<setprecision(3)<<ans<<endl;
    }
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0); cerr.tie(0);
    #ifndef ONLINE_JUDGE
    	(void)!freopen("input.txt", "r", stdin);
    	(void)!freopen("info.txt", "w", stderr);
    	(void)!freopen("output.txt", "w", stdout);
    #endif

    int t=1;
    while(t--)	solve();

    #ifndef ONLINE_JUDGE
    	cerr << "time taken: " << (float)clock() / CLOCKS_PER_SEC << " secs" << endl;
    #endif
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10