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Submission #896383

# Submission time Handle Problem Language Result Execution time Memory
896383 2024-01-01T10:55:53 Z Aiperiii Passport (JOI23_passport) C++14
22 / 100
 2000 ms 49500 KB 
#include <bits/stdc++.h>
#define int long long
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
using namespace std;
signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);
    int n;
    cin>>n;
    vector <int> l(n+1),r(n+1),mx(n+1);
    for(int i=1;i<=n;i++){
        cin>>l[i]>>r[i];
        mx[i]=max(mx[i-1],r[i]);
    }
    int query;
    cin>>query;
    while(query--){
        int s;
        cin>>s;
        if(s==1){
            int x=r[s];
            int ans=1;
            while(x!=n){
                if(mx[x]==x){
                    ans=-1;
                    break;
                }
                
                ans++;
                x=mx[x];
                
            }
            cout<<ans<<"\n";
            continue;
        }
        queue < pair <int,int> > q;
        q.push({l[s],r[s]});
        vector <vector <int> >  dis(n+1,vector <int> (n+1,1e18));
        dis[l[s]][r[s]]=1;
        while(!q.empty()){
            int left=q.front().ff;
            int right=q.front().ss;
            q.pop();
            for(int i=left;i<=right;i++){
                if(dis[min(left,l[i])][max(right,r[i])]>dis[left][right]+1){
                    dis[min(left,l[i])][max(right,r[i])]=dis[left][right]+1;
                    q.push({min(left,l[i]),max(right,r[i])});
                }
            }
        }
        if(dis[1][n]==1e18)cout<<-1<<"\n";
        else cout<<dis[1][n]<<"\n";
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 74 ms 7452 KB Output is correct
5 Correct 75 ms 7360 KB Output is correct
6 Correct 81 ms 7664 KB Output is correct
7 Correct 60 ms 6720 KB Output is correct
8 Correct 53 ms 5716 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 3 ms 1116 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 3 ms 1116 KB Output is correct
16 Correct 1996 ms 47008 KB Output is correct
17 Correct 839 ms 49004 KB Output is correct
18 Correct 31 ms 49496 KB Output is correct
19 Correct 41 ms 46944 KB Output is correct
20 Execution timed out 2060 ms 49500 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 1100 KB Output is correct
12 Correct 2 ms 1116 KB Output is correct
13 Correct 1 ms 1116 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 3 ms 1116 KB Output is correct
16 Correct 1996 ms 47008 KB Output is correct
17 Correct 839 ms 49004 KB Output is correct
18 Correct 31 ms 49496 KB Output is correct
19 Correct 41 ms 46944 KB Output is correct
20 Execution timed out 2060 ms 49500 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 74 ms 7452 KB Output is correct
5 Correct 75 ms 7360 KB Output is correct
6 Correct 81 ms 7664 KB Output is correct
7 Correct 60 ms 6720 KB Output is correct
8 Correct 53 ms 5716 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 2 ms 1100 KB Output is correct
20 Correct 2 ms 1116 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 3 ms 1116 KB Output is correct
24 Correct 1996 ms 47008 KB Output is correct
25 Correct 839 ms 49004 KB Output is correct
26 Correct 31 ms 49496 KB Output is correct
27 Correct 41 ms 46944 KB Output is correct
28 Execution timed out 2060 ms 49500 KB Time limit exceeded
29 Halted 0 ms 0 KB -