oj.uz

답안 #1119683

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1119683 2024-11-27T09:57:26 Z thelegendary08 Event Hopping (BOI22_events) C++17
0 / 100
 1500 ms 8408 KB 
#include<bits/stdc++.h>
#define pb push_back
#define int long long
#define vi vector<int>
#define vvi vector<vector<int>>
#define pii pair<int, int>
#define vpii vector<pair<int, int>>
#define vc vector<char>
#define vb vector<bool>
#define mii map<int,int>
#define f0r(i,n) for(int i=0;i<n;i++)
#define FOR(i,k,n) for(int i=k;i<n;i++)
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define in(a) int a; cin>>a
#define in2(a,b) int a,b; cin>>a>>b
#define in3(a,b,c) int a,b,c; cin>>a>>b>>c
#define in4(a,b,c,d) int a,b,c,d; cin>>a>>b>>c>>d
#define vin(v,n); vi v(n); f0r(i,n){cin>>v[i];}
#define out(a) cout<<a<<'\n'
#define out2(a,b) cout<<a<<' '<<b<<'\n'
#define out3(a,b,c) cout<<a<<' '<<b<<' '<<c<<'\n'
#define out4(a,b,c,d) cout<<a<<' '<<b<<' '<<c<<' '<<d<<'\n'
#define vout(v) cout<<#v<<' '; for(auto u : v){cout<<u<<' ';} cout<<'\n'
#define dout(a) cout<<a<<' '<<#a<<'\n'
#define dout2(a,b) cout<<a<<' '<<#a<<' '<<b<<' '<<#b<<'\n'
#define yn(x); if(x){cout<<"YES"<<'\n';}else{cout<<"NO"<<'\n';}
const int leg = 1e9 + 7;
const int mod = 998244353;
using namespace std;
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	//ifstream cin(".in");
	//ofstream cout(".out");
	in2(n,q);
	vpii v;
	f0r(i,n){
		in2(a,b);
		v.pb({a,b});
	}
	vvi adj(n);
	f0r(i,n){
		f0r(j,n){
			if(i != j){
				if(v[j].first <= v[i].second && v[i].second <= v[j].second){
					adj[i].pb(j);
				}
			}
		}
	}
	vvi dist(n,vi(n, 4e18));
	f0r(i,n){
		dist[i][i] = 0;
		priority_queue<pii>pq;
		pq.push({i, 0});
		while(!pq.empty()){
			int node = pq.top().second;
			pq.pop();
			for(auto u : adj[node]){
				if(dist[i][u] > dist[i][node] + 1){
					dist[i][u] = dist[i][node] + 1;
					pq.push({-dist[i][u], u});
				}
			}
		}
	}
	while(q--){
		in2(a,b);
		a--;
		b--;
		if(dist[a][b] == 4e18)out("impossible");
		else out(dist[a][b]);
	}
}

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 504 KB Output is correct
2 Execution timed out 1581 ms 6604 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Incorrect 9 ms 8408 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Incorrect 9 ms 8408 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Incorrect 9 ms 8408 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1522 ms 6604 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 504 KB Output is correct
2 Execution timed out 1581 ms 6604 KB Time limit exceeded
3 Halted 0 ms 0 KB -