Submission #385234

#	Time	Username	Problem	Language	Result	Execution time	Memory
385234		Ahmad_Hasan	Mountains (IOI17_mountains)	C++17	0 / 100	1 ms	512 KiB

mountains

#include <bits/stdc++.h>
#include "mountains.h"

using namespace std;


int maximum_deevs(vector<int>v){
    int n=v.size();
    long double pi=acos(-1.0);
    int dp[n];
    dp[n-1]=1;
    for(int i=n-2;i>=0;i--){
        dp[i]=0;
        long double mx=-1;
        for(int j=i+1;j<n;j++){

            long double ang=atan2(j-i,v[i]-v[j])*180/pi;

            if(ang<mx){
                dp[i]=max(dp[i],dp[j]+1);
            }
            mx=max(mx,ang);
           /// cout<<i<<' '<<j<<' '<<mx<<' '<<j-i<<' '<<v[i]-v[j]<<'\n';
        }

    }

    int ans=-1;
    for(int i=0;i<n;i++)
        ans=max(ans,dp[i]);


    return ans;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 30
• Subtask 4: 0 / 30