Submission #785264

#	Time	Username	Problem	Language	Result	Execution time	Memory
785264		makanhulia	Global Warming (CEOI18_glo)	C++17	0 / 100	2081 ms	4980 KiB

glo

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define sec second
#define pb push_back
#define pqueue priority_queue
#define int long long
#define pii pair<int,int>
#define supercepat ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0);
using namespace std;
int tc,ans=0,n,x;
int a[200005];
int b[200005];
int copa[200005];
int rec[200005];
void findlis(){
  for(int i=1;i<=n;i++){
    rec[i]=0;
  }
  rec[1]=1;
  for(int i=1;i<=n;i++){
    for(int j=1;j<=i;j++){
      if(copa[j]<copa[i]) rec[i]=max(rec[i],rec[j]);
    }
    rec[i]++;
  }
  ans=max(ans,rec[n]);
}
void solve(int x,int y,int z){
  for(int i=1;i<=n;i++){
    copa[i]=a[i];
    if(x<=i&&i<=y) copa[i]+=z;
  }
  findlis();
  for(int i=1;i<=n;i++){
    copa[i]=a[i];
    if(x<=i&&i<=y) copa[i]+=z;
  }
  findlis();
}
main(){
  supercepat;
  cin>>n>>x;
  for(int i=1;i<=n;i++) cin>>a[i];
  for(int i=1;i<=n;i++){
    for(int j=i;j<=n;j++){
      for(int k=-x;k<=x;k++){
        solve(i,j,k);
      }
    }
  }
  cout<<ans<<endl;
}

Compilation message (stderr)

glo.cpp:41:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   41 | main(){
      | ^~~~

• 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