Submission #1343212

#	Time	Username	Problem	Language	Result	Execution time	Memory
1343212		Nipphitch	Group Photo (JOI21_ho_t3)	C++20	0 / 100	1776 ms	2162688 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int N=5005;

int n,a[N],ans;
queue <pair <int,vector <int>>> q;

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i];
    vector <int> tmp;
    for(int i=1;i<=n;i++) tmp.push_back(a[i]);
    q.push({0,tmp});
    while(!q.empty()){
        auto [d_u,u]=q.front();
        q.pop();
        bool ok=true;
        for(int i=0;i+1<n;i++) if(u[i+1]+2<=u[i]) ok=false;
        if(ok){
            cout << d_u;
            break;
        }
        for(int i=0;i+1<n;i++){
            swap(u[i],u[i+1]);
            q.push({d_u+1,u});
            swap(u[i],u[i+1]);
        }
    }
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 32
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36