Submission #1114068

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114068		thelegendary08	Jail (JOI22_jail)	C++17	0 / 100	1 ms	508 KiB

jail

#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) 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");
	int tt;
	cin>>tt;
	while(tt--){
		in(n);
		vvi adj(n+1);
		f0r(i,n-1){
			in2(a,b);
			adj[a].pb(b);
			adj[b].pb(a);
		}
		in(m);
		vpii v;
		vector<pair<pii,int>>w;
		f0r(i,m){
			in2(a,b);
			v.pb({min(a,b),max(a,b)});
			w.pb({{min(a,b),max(a,b)}, (a > b)});
		}
		sort(all(v));
		sort(all(w));
		int mx = -1;
		bool ok = 1;
		f0r(i,m-1){
			if(v[i].second <= mx){
				ok = 0;
				break;
			}
			else{
				mx = v[i].second;
			}
		}
		mx = -1;
		f0r(i, m-1){
			if(w[i].second){
				if(w[i].first.first < mx)ok = 0;
			}
			else{
				mx = w[i].first.second;
			}
		}
		yn(ok);
	}
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 16
• Subtask 4: 0 / 28
• Subtask 5: 0 / 12
• Subtask 6: 0 / 11
• Subtask 7: 0 / 23