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Submission #721618

# Submission time Handle Problem Language Result Execution time Memory
721618 2023-04-11T05:38:03 Z Erkinoff_Mohammed Event Hopping (BOI22_events) C++14
0 / 100
 152 ms 11716 KB 
#include "bits/stdc++.h"
using namespace std;
#define INF 2000000000
#define INFLL 3000000000000000000LL
#define ll long long





int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n,q;
    cin>>n>>q;
    pair<pair<int,int>,int>arr[n];
    for(int i=0;i<n;i++){
        int l,r;
        cin>>l>>r;
        arr[i]={{l,r},i+1};
    }
    sort(arr,arr+n);
    map<int,int>mp;
    for(int i=0;i<n;i++){
        mp[arr[i].second]=i;
    }
    set<int>s;
    for(int i=1;i<n;i++){
        if(arr[i-1].first.second<arr[i].first.first){
            s.insert(i);
        }
    }
    cout<<"\n";
    while(q--){
        int a,b;
        cin>>a>>b;
        auto it=s.upper_bound(a);
        if(it!=s.end())if((*it)<=b){
            cout<<"impossible\n";
            continue;
        }
        int out=mp[b]-mp[a];
        if(out<0)cout<<"impossible\n";
        else cout<<out<<"\n";
    }
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 101 ms 6720 KB Output is correct
2 Correct 133 ms 6720 KB Output is correct
3 Correct 152 ms 6756 KB Output is correct
4 Incorrect 141 ms 11716 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -