제출 #785467

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
785467		devariaota	Global Warming (CEOI18_glo)	C++17	15 / 100	2074 ms	1776 KiB

glo

#include<bits/stdc++.h>
 
#define sherina ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define pb push_back
#define int long long
#define INF 1e18
#define endl '\n'
 
using namespace std;

int n , x , t[200005];
vector < int > v;

signed main(){
    cin >> n >> x;
    for(int i = 1 ; i <= n ; i++) cin >> t[i];
    int maks = 0;
    for(int i = 1 ; i <= n ; i++){
        for(int j = i ; j <= n ; j++){
            for(int k = -x ; k <= x ; k++){
                v.clear();
                for(int l = i ; l <= j ; l++) t[l] += k;
                for(int l = 1 ; l <= n ; l++){
                    int tmp = v.size();
                    if(!tmp) v.pb(t[l]);
                    else if(t[l] > v[tmp - 1]) v.pb(t[l]);
                    else{
                        int id = lower_bound(v.begin() , v.end() , t[l]) - v.begin();
                        v[id] = t[l];
                    }
                }
                for(int l = i ; l <= j ; l++) t[l] -= k;
                int sie = v.size();
                //cout << i << " " << j << " " << k << " " << sie << endl;
                maks = max(maks , sie);
            }
        }
    }
    cout << maks << endl;
}

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