Submission #916497

#	Time	Username	Problem	Language	Result	Execution time	Memory
916497		Darren0724	Cat Exercise (JOI23_ho_t4)	C++17	7 / 100	21 ms	464 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define all(x) x.begin(),x.end()
#define abcorz ios_base::sync_with_stdio(false);cin.tie(0);
int32_t main(){
    abcorz;
    int n;cin>>n;
    vector<int> v(n),t(n+1);
    for(int i=0;i<n;i++){
        cin>>v[i];
        t[v[i]]=i;
    }
    int ans=0;
    for(int i=0;i<n;i++){
        for(int j=i;j<n;j++){
            int l=i,r=j;
            int last=-1;
            int cnt=0;
            for(int k=n;k>=1;k--){
                if(t[k]>=l&&t[k]<=r){
                    if(last==-1){
                        last=t[k];
                        continue;
                    }
                    cnt+=abs(last-t[k]);
                    if(last>t[k]){
                        r=last;
                    }
                    else{
                        l=last;
                    }
                    last=t[k];
                }
            }
            ans=max(ans,cnt);
        }
    }
    cout<<ans<<endl;

    return 0;
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 7
• Subtask 3: 0 / 7
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 23
• Subtask 7: 0 / 26