Submission #785532

#	Time	Username	Problem	Language	Result	Execution time	Memory
785532		makanhulia	Global Warming (CEOI18_glo)	C++17	0 / 100	2074 ms	2388 KiB

glo

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define fi first
#define se second

ll n,x;
// int lis[200005][200005];   // prev, cur

ll cek(vector<int> x){
    ll tmp[n+5];
    ll ans=0;
    for(int i=n;i>0;i--){
        tmp[i]=1;
        for(int j=i+1;j<=n;j++){
            if(x[j]>x[i]) tmp[i] = max(tmp[j]+1, tmp[i]);
        }
        ans=max(ans,tmp[i]);
    }
    return ans;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin>>n>>x;
    vector<int> a(n+1);
    ll ans=0;
    for(int i=1;i<=n;i++){
        cin>>a[i];
    }

    for(int i=1;i<=n;i++){// pilih segmen
        for(int j=i;j<=n;j++){
            for(int k=-1*x;k<x;k++){
                vector<int> tmp = a;
                
                for(int l=i; l<=j; l++){
                    tmp[l] += k;
                }
                ans = max(cek(tmp),ans);
            }
        }
    }

    cout<<ans<<'\n';

    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25