Submission #1127674

#	Time	Username	Problem	Language	Result	Execution time	Memory
1127674		Haciyev12	Global Warming (CEOI18_glo)	C++20	38 / 100	2094 ms	4616 KiB

glo

#include "bits/stdc++.h"
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define ll long long
#define pb push_back
#define in insert
#define F first
#define S second
#define vll vector<ll>
#define all(v) v.begin(),v.end()
#define endl '\n'
#define pii pair<ll,ll>
#define yes cout << "YES" << endl;
#define no cout << "NO" << endl;
using namespace std;
const ll INF = 1e18, mod = 1e9 + 7, N = 2e5 + 5;
ll gcd(ll a, ll b){
 if(b == 0){
 return a;
 }
 return gcd(b, a%b);
}
ll lcm(ll a, ll b){
    return (a / gcd(a,b)) * b;
}
vector<ll>e;
    ll n,x;

ll lis(vector<ll>&a){
    vector<ll>ans;
    ll f = -1;
    for(int i = 0; i < a.size(); i++){
        //cout << a[i] << " ";
        auto it = lower_bound(all(ans), a[i]);
        if(it == ans.end()){
            ans.pb(a[i]);
        }
        else{
            f = i;
            *it = a[i];
        }

    }
  
 //cout << endl;
    return ans.size() ;
}
void solve(){
    cin >> n >> x;
    vector<ll>a(n);
    vector<ll>v;
    vector<ll>used(n, 0);
    for(int i = 0; i < n; i++){
        cin >> a[i];
     
    }
    if(x == 0){
        cout << lis(a) << endl;
        return;
    }
    ll maxi = 0;
    for(int i = 0; i < n; i++){
        for(int j = 0; j < i; j++){
            if(!used[j]){

            a[j]-=x;
            used[j] = 1;
            }
        }
        maxi = max(maxi, lis(a));
    }
    cout <<maxi << endl;
   
}
int main() {
    fast;
    ll t = 1;
   // cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

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