Submission #1114825

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114825		Nipphitch	Pancake (NOI12_pancake)	C++14	12 / 25	4 ms	336 KiB

pancake

#include <bits/stdc++.h>
using namespace std;
#define int long long

void slove(){
    int n,tmp=0,ans=0;
    vector <int> a,b;
    cin >> n;
    for(int i=0;i<n;i++){
        int x;
        cin >> x;
        a.push_back(x);
        b.push_back(x);
    }
    sort(b.begin(),b.end(),greater <int>());
    for(int i=0;i<n && tmp<n;i++){
        if(a[tmp]==b[tmp]) tmp++;
        else if(a[n-1]==b[tmp]){
            reverse(a.begin()+tmp,a.end());
            ans++;
            tmp++;
        }
        else{
            for(int j=tmp+1;j<n-1;j++){
                if(a[j]==b[tmp]){
                    reverse(a.begin()+j,a.end());
                    ans++;
                    reverse(a.begin()+tmp,a.end());
                    ans++;
                    tmp++;
                }
            }
        }
    }
    cout << ans << "\n";
}

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int tc=1;
    cin >> tc;
    while(tc--) slove();
}

• Subtask 1: 4 / 4
• Subtask 2: 4 / 4
• Subtask 3: 4 / 4
• Subtask 4: 0 / 8
• Subtask 5: 0 / 5