Submission #896443

#	Time	Username	Problem	Language	Result	Execution time	Memory
896443		3laa	Event Hopping (BOI22_events)	C++14	0 / 100	244 ms	7644 KiB

events

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
#include <unordered_map>
#define endl '\n'
#define mid ((l+r)/2)
#define  F first
#define  S second
#define pb push_back
#define yes void (cout<<"YES"<<endl)
#define no void (cout<<"NO"<<endl)
#define ump unordered_map <ll,ll>
#define sp " "
#define vll vector<ll>
#define vint vector<int>
#define pll pair<ll,ll>
typedef long long ll;
using namespace std;
const ll inf=1e18+9;
const int N=2e5+9;
const ll M=1e9+7;
ll n,q;
int main(){
    cin>>n>>q;
    map<ll,pll> mp;
    for(ll i=0 ;i<n ; i++){
        ll x,y;
        cin>>x>>y;
        mp[i]={x,y};
    }
    while(q--){
        ll x,y;
        cin>>x>>y;
        x--; y--;
        if(mp[x].S>=mp[y].F&&mp[x].S<mp[y].S){
            cout<<1<<endl;
        }
        else{
            cout<<"impossible"<<endl;
        }
    }
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30