oj.uz

답안 #882530

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882530 2023-12-03T10:30:45 Z alexdd 성질 급한 지학이 (IZhO13_crazy) C++17
100 / 100
 5 ms 500 KB 
#include<iostream>
using namespace std;
int n;
int p[1005];
bool occupied[1005];
bool verif(int lady)
{
    for(int i=1;i<=n;i++)
        occupied[i]=0;
    occupied[p[1]]=1;
    int assigned=0;
    for(int i=2;i<=n;i++)
    {
        assigned++;
        if(assigned==lady) assigned++;
        if(!occupied[assigned])
        {
            if(p[i]!=assigned)
                return 0;
            occupied[p[i]]=1;
        }
        else
        {
            if(p[i]==assigned)
                return 0;
            occupied[p[i]]=1;
        }
    }
    return 1;
}
signed main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    int t;
    cin>>t;
    while(t--)
    {
        cin>>n;
        for(int i=1;i<=n;i++)
        {
            cin>>p[i];
        }
        int unde=-1;
        for(int i=1;i<=n;i++)
        {
            if(verif(i))
            {
                //cout<<i<<" ";
                //continue;
                if(unde==-1)
                    unde=i;
                else
                {
                    unde=0;
                    break;
                }
            }
        }
        //cout<<"   zzz\n";
        cout<<unde<<"\n";
    }
    return 0;
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 356 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 3 ms 468 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 484 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 4 ms 348 KB Output is correct
20 Correct 5 ms 500 KB Output is correct