제출 #444559

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
444559		Khizri	Global Warming (CEOI18_glo)	C++17	15 / 100	67 ms	460 KiB

glo

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=50+5;
int t=1,n,arr[mxn],x,a[mxn];
int funk(){
	vector<int>vt;
	for(int i=1;i<=n;i++){
		auto it=lower_bound(vt.begin(),vt.end(),arr[i]);
		if(it==vt.end()){
			vt.pb(arr[i]);
		}
		else{
			*it=arr[i];
		}
	}
	return vt.size();
}
void solve(){
	cin>>n>>x;
	
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	int ans=0;
	for(int k=-x;k<=x;k++){
		for(int i=1;i<=n;i++){
			memcpy(arr,a,sizeof(a));
			for(int j=i+1;j<=n;j++){
				arr[j]+=k;
				ans=max(ans,funk());
			}
		}
	}
	cout<<ans<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

• 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