Submission #777859

#	Time	Username	Problem	Language	Result	Execution time	Memory
777859		huynhyen1609	Balloons (CEOI11_bal)	C++14	100 / 100	148 ms	8524 KiB

bal

/*
                                 ..
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                   .777?5J??YYYYY5?7777!!!!~!~~^^::.  .::
                        :!!~:.:^^:

        PENGUIN SO CUTE, I LOVE PENGUIN
*/
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define NAME ""
#define int long long
#define ii pair<int,int>
const int oo=1e9;
const int mod=1e9+7;
const int N=2e5;
const int LG=12;
const int Sqrt=350;
int hx[]={0,0,1,-1,1,1,-1,-1},hy[]={1,-1,0,0,1,-1,1,-1};
int n;
double x[N+5],r[N+5];
main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    //freopen(""NAME".in","r",stdin);
    //freopen(""NAME".out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;++i)cin>>x[i]>>r[i];
    stack<int>s;
    for(int i=1;i<=n;++i)
    {
        while(!s.empty())
        {
            double tmp=(x[i]-x[s.top()])*(x[i]-x[s.top()])/(4*r[s.top()]);
            r[i]=min(r[i],tmp);
            if(r[s.top()]>r[i])break;
            s.pop();
        }
        s.push(i);
    }
    for(int i=1;i<=n;++i)cout<<fixed<<setprecision(3)<<r[i]<<'\n';
}
/*
         ଘ(੭ˊᵕˋ)੭* ੈ✩‧˚huynhyen1609<3
*/

Compilation message (stderr)

bal.cpp:57:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | main()
      | ^~~~

• 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