oj.uz

Submission #1120131

# Submission time Handle Problem Language Result Execution time Memory
1120131 2024-11-28T05:16:45 Z vjudge1 Event Hopping (BOI22_events) C++17
0 / 100
 94 ms 12468 KB 
#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
typedef long long ll;
void solve() {
    ll n; cin>>n;
    ll Q; cin>>Q;
    map<ll, ll> ord;
    vector<pair<ll, pair<ll, ll>>> v;
    for(ll i=1; i<=n; i++) {
        ll l,r; cin>>l>>r;
        v.push_back({r, {l, i}});
    }
    sort(v.begin(), v.end());
    ll p=1;
    ll lst=-1;
    for(auto [r, to]: v) {
        ll l=to.f, i=to.s;
        if(lst == -1 || (l <= lst && lst <= r)) {
            ord[p++]=i;
            lst=r;
        }
    }
    for(ll i=1; i<=Q; i++) {
        ll l, r; cin>>l>>r;
        if(ord[r]-ord[l] < 0) cout<<"impossible\n";
        else cout<<ord[r]-ord[l]<<"\n";
    }
}
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int t=1;
    // cin>>t;
    while(t--) {
        solve();
        cout<<'\n';
    }
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 1 ms 336 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 1 ms 336 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 1 ms 336 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 94 ms 12468 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output isn't correct
2 Halted 0 ms 0 KB -