oj.uz

Submission #1106710

# Submission time Handle Problem Language Result Execution time Memory
1106710 2024-10-30T23:57:45 Z inksamurai Passport (JOI23_passport) C++17
54 / 100
 2000 ms 194752 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int) a.size()
#define all(a) a.begin(),a.end()
#define vec(...) vector<__VA_ARGS__>
#define _3M8yqhy ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}

const int inf=1e9;

void slv(){
	int n;
	cin>>n;

	vec(pii) a;
	rep(i,n){
		int l,r;
		cin>>l>>r;
		l-=1,r-=1;
		a.pb({l,r});
	}	

	auto get=[&](vi d,vec(pii) cover_ranges){
		int _n=n+20*n;
		vec(vec(pii)) adj(_n);
		auto build=[&](auto self,int node,int l,int r)->void{
			if(l==r-1){
				adj[l].pb({0,n+node});
				return;
			}
			int m=(l+r)/2;
			self(self,node*2+1,l,m);
			self(self,node*2+2,m,r);
			adj[node*2+1+n].pb({0,node+n});
			adj[node*2+2+n].pb({0,node+n});
		};
		build(build,0,0,n);
		auto add=[&](auto self,int node,int l,int r,int _l,int _r,int v)->void{
			if(_l<=l and r<=_r){
				adj[node+n].pb({1,v});
				return;
			}
			if(l>=_r or r<=_l){
				return;
			}
			int m=(l+r)/2;
			self(self,node*2+1,l,m,_l,_r,v);
			self(self,node*2+2,m,r,_l,_r,v);
		};
		rep(v,n){
			add(add,0,0,n,cover_ranges[v].fi,cover_ranges[v].se+1,v);
		}
		vi dp(_n,inf);
		rep(v,n){
			dp[v]=d[v];
		}
		priority_queue<pii,vec(pii),greater<pii>> pq;
		rep(v,n){
			pq.push({dp[v],v});
		}
		while(sz(pq)){
			auto [cosu,v]=pq.top();
			pq.pop();
			if(dp[v]!=cosu) continue;
			for(auto [w,u]:adj[v]){
				if(dp[u]>dp[v]+w){
					dp[u]=dp[v]+w;
					pq.push({dp[u],u});
				}
			}
		}
		vi ret(n);
		rep(v,n){
			ret[v]=dp[v];
			// print(ret[v]);
		}
		return ret;
	};

	vi pns(n,inf);
	// 12 way
	rep(t,2){
		vi d1(n,inf);
		vec(pii) cover_ranges1;
		{
			rep(i,n){
				cover_ranges1.pb({a[i].fi,a[i].se});
				if(a[i].fi==0){
					d1[i]=1;
				}
			}
		}
		vi d2(n,inf);
		vec(pii) cover_ranges2;
		{
			rep(i,n){
				cover_ranges2.pb({0,a[i].se});
				if(a[i].se==n-1){
					d2[i]=1;
				}
			}
		}
		d1=get(d1,cover_ranges1);
		// break;
		d2=get(d2,cover_ranges2);
		// if(!t){
		// 	print(d1[2],d2[2]);
		// }
		vi d3(n,inf);
		{
			d3[0]=d2[0];
			rng(v,1,n-1){
				d3[v]=d1[v]+d2[v]-1;
			}
			d3[n-1]=d1[n-1];
		}
		vec(pii) cover_ranges3;
		{
			rep(i,n){
				cover_ranges3.pb({a[i].fi,a[i].se});
			}
		}
		d3=get(d3,cover_ranges3);

		rep(v,n){
			if(!t){
				pns[v]=min(pns[v],d3[v]);
			}else{
				pns[n-1-v]=min(pns[n-1-v],d3[v]);
			}
		}

		rep(i,n){
			a[i].fi=n-1-a[i].fi;
			a[i].se=n-1-a[i].se;
			swap(a[i].fi,a[i].se);
		}
		reverse(all(a));
	}

	int q;
	cin>>q;
	rep(i,q){
		int x;
		cin>>x;
		x-=1;
		print(pns[x]==inf?-1:pns[x]);
	}
}

signed main(){
_3M8yqhy;
	slv();
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1861 ms 189188 KB Output is correct
5 Correct 1262 ms 179252 KB Output is correct
6 Correct 988 ms 180628 KB Output is correct
7 Correct 764 ms 151700 KB Output is correct
8 Correct 516 ms 149940 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 504 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 704 KB Output is correct
12 Correct 2 ms 700 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 2 ms 704 KB Output is correct
15 Correct 2 ms 700 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 504 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 704 KB Output is correct
12 Correct 2 ms 700 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 2 ms 704 KB Output is correct
15 Correct 2 ms 700 KB Output is correct
16 Correct 13 ms 2576 KB Output is correct
17 Correct 12 ms 2492 KB Output is correct
18 Correct 14 ms 2736 KB Output is correct
19 Correct 12 ms 2776 KB Output is correct
20 Correct 10 ms 2480 KB Output is correct
21 Correct 11 ms 2480 KB Output is correct
22 Correct 7 ms 2492 KB Output is correct
23 Correct 12 ms 2480 KB Output is correct
24 Correct 12 ms 2736 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 504 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 704 KB Output is correct
12 Correct 2 ms 700 KB Output is correct
13 Correct 2 ms 876 KB Output is correct
14 Correct 2 ms 704 KB Output is correct
15 Correct 2 ms 700 KB Output is correct
16 Correct 13 ms 2576 KB Output is correct
17 Correct 12 ms 2492 KB Output is correct
18 Correct 14 ms 2736 KB Output is correct
19 Correct 12 ms 2776 KB Output is correct
20 Correct 10 ms 2480 KB Output is correct
21 Correct 11 ms 2480 KB Output is correct
22 Correct 7 ms 2492 KB Output is correct
23 Correct 12 ms 2480 KB Output is correct
24 Correct 12 ms 2736 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 14 ms 2636 KB Output is correct
28 Correct 12 ms 2648 KB Output is correct
29 Correct 11 ms 2528 KB Output is correct
30 Correct 11 ms 2512 KB Output is correct
31 Correct 11 ms 2524 KB Output is correct

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1861 ms 189188 KB Output is correct
5 Correct 1262 ms 179252 KB Output is correct
6 Correct 988 ms 180628 KB Output is correct
7 Correct 764 ms 151700 KB Output is correct
8 Correct 516 ms 149940 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 504 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 2 ms 704 KB Output is correct
20 Correct 2 ms 700 KB Output is correct
21 Correct 2 ms 876 KB Output is correct
22 Correct 2 ms 704 KB Output is correct
23 Correct 2 ms 700 KB Output is correct
24 Correct 13 ms 2576 KB Output is correct
25 Correct 12 ms 2492 KB Output is correct
26 Correct 14 ms 2736 KB Output is correct
27 Correct 12 ms 2776 KB Output is correct
28 Correct 10 ms 2480 KB Output is correct
29 Correct 11 ms 2480 KB Output is correct
30 Correct 7 ms 2492 KB Output is correct
31 Correct 12 ms 2480 KB Output is correct
32 Correct 12 ms 2736 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 14 ms 2636 KB Output is correct
36 Correct 12 ms 2648 KB Output is correct
37 Correct 11 ms 2528 KB Output is correct
38 Correct 11 ms 2512 KB Output is correct
39 Correct 11 ms 2524 KB Output is correct
40 Execution timed out 2037 ms 194752 KB Time limit exceeded
41 Halted 0 ms 0 KB -