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Submission #866409

# Submission time Handle Problem Language Result Execution time Memory
866409 2023-10-26T05:09:58 Z GoldLight Crocodile's Underground City (IOI11_crocodile) C++17
100 / 100
 395 ms 50384 KB 
#include <bits/stdc++.h>
using namespace std;
void fast(){ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);}
 
//const int NN=1e5;
const long long INF=1e18;
// int R[NN+1][2], L[NN+1], P[NN+1];
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]){
	vector<pair<int,int>> v[N];
	for(int i=0; i<M; i++){
		v[R[i][0]].push_back({R[i][1], L[i]});
		v[R[i][1]].push_back({R[i][0], L[i]});
	}
	vector<vector<long long>> dist(N+2, vector<long long>(2, INF));
	priority_queue<pair<long long,int>, vector<pair<long long,int>>, greater<pair<long long,int>>> pq;
	for(int i=0; i<K; i++){
		dist[P[i]][0]=dist[P[i]][1]=0;
		pq.push({0, P[i]});
	}
	while(!pq.empty()){
		auto[d, u]=pq.top(); pq.pop();
		if(d>dist[u][1]) continue;
		for(auto [to, di]:v[u]){
			if(d+di<dist[to][0]){
				if(dist[to][0]!=dist[to][1] && dist[to][0]<INF){
					dist[to][1]=dist[to][0];
					pq.push({dist[to][1], to});
				}
				dist[to][0]=d+di;
			}
			else if(d+di<dist[to][1]){
				dist[to][1]=d+di;
				pq.push({d+di, to});
			}
		}
	}
	return dist[0][1];
}
// int main(){
// 	fast();
// 	int n, m, k; cin>>n>>m>>k;
// 	for(int i=0; i<m; i++){
// 		cin>>R[i][0]>>R[i][1];
// 	}
// 	for(int i=0; i<m; i++) cin>>L[i];
// 	for(int i=0; i<k; i++) cin>>P[i];
// 	cout<<travel_plan(n, m, k);
// }
 
/*
#define int long long
const int INF=1e18;
signed main(){
	fast();
	int teskes; cin>>teskes;
	while(teskes--){
		int n, m, k; cin>>n>>m>>k;
		int a[n+1], now=0;
		for(int i=1; i<=n; i++) cin>>a[i];
		vector<pair<int,int>> v[n+1], to(2*k+5);
		vector<int> dp(2*k+5, -INF);
		dp[0]=0;
		v[1].push_back({1, now++});  
		for(int i=1; i<=k; i++){
			int a, b, c, d, h; cin>>a>>b>>c>>d>>h;
			v[a].push_back({b, now++});
			v[c].push_back({d, now++});
			to[now-2]={now-1, h};
		}
		v[n].push_back({m, now});
		for(int i=1; i<=n; i++){
			int sz=v[i].size();
			sort(v[i].begin(), v[i].end());
			for(int j=1; j<sz; j++){
				dp[v[i][j].second]=max(dp[v[i][j].second], dp[v[i][j-1].second]-(v[i][j].first-v[i][j-1].first)*a[i]);
			}
			for(int j=sz-2; j>=0; j--){
				dp[v[i][j].second]=max(dp[v[i][j].second], dp[v[i][j+1].second]-(v[i][j+1].first-v[i][j].first)*a[i]);
			}
			for(auto [r, num]:v[i]){
				if(to[num].first && dp[num]!=-INF){
					dp[to[num].first]=max(dp[to[num].first], dp[num]+to[num].second);
				}
			}
		}
		if(dp[now]==-INF) cout<<"NO ESCAPE";
		else cout<<-dp[now];
		cout<<'\n';
	}
}
*/
/*
#define int long long
const int INF=1e18, N=3e5;
signed main(){
	fast();
	int teskes; cin>>teskes;
	while(teskes--){
		int n, m, k; cin>>n>>m>>k;
		int a[n+1], num=2;
		for(int i=1; i<=n; i++) cin>>a[i];
		map<pair<int,int>, int> mp; mp[{1, 1}]=0, mp[{n, m}]=1;
		vector<pair<int,int>> v[N+1];
		priority_queue<pair<int,int>, vector<pair<int,int>>, greater<pair<int,int>>> pq;
		pq.push({1, 1}), pq.push({n, m});
		for(int i=1; i<=k; i++){
			int p, q, r, s, h; cin>>p>>q>>r>>s>>h;
			if(!mp.count({p, q})) mp[{p, q}]=num++;
			if(!mp.count({r, s})) mp[{r, s}]=num++;
			v[mp[{p, q}]].push_back({mp[{r, s}], -h});
			pq.push({p, q});
			pq.push({r, s});
		}
		int la=pq.top().first, lb=pq.top().second; pq.pop();
		while(!pq.empty()){
			auto[na, nb]=pq.top(); pq.pop(); //new
			if(la==na && lb==nb) continue;
			if(la==na){
				v[mp[{la, lb}]].push_back({mp[{na, nb}], (nb-lb)*a[la]});
				v[mp[{na, nb}]].push_back({mp[{la, lb}], (nb-lb)*a[la]});
			}
			la=na, lb=nb;
		}
		vector<int> dist(num, INF);
		vector<bool> vis(num);
		dist[0]=0;
		pq.push({0, 0});
		while(!pq.empty()){
			auto[d, u]=pq.top(); pq.pop();
			if(vis[u]) continue;
			vis[u]=true;
			cout<<d<<' '<<u<<'\n';
			for(auto &[to, h]:v[u]){
				if(!vis[to] && dist[u]+h<dist[to]){
					dist[to]=dist[u]+h;
					pq.push({dist[to], to});
				}
			}
		}
		cout<<'\n';
		for(auto [x, y]:mp) cout<<x.first<<' '<<x.second<<' '<<y<<'\n';
		cout<<'\n';
		// for(auto [x, y]:mp){
		// 	cout<<x.first<<' '<<x.second<<" : ";
		// 	for(auto [node, val]:v[y]) cout<<node<<' ';
		// 	cout<<'\n';
		// }
		// if(dist[1]==INF) cout<<"NO ESCAPE";
		// else cout<<dist[1];
		// cout<<'\n';
	}
}*/

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4540 KB Output is correct
6 Correct 1 ms 4440 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4540 KB Output is correct
6 Correct 1 ms 4440 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 2 ms 4696 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 3 ms 4700 KB Output is correct
13 Correct 3 ms 4696 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4540 KB Output is correct
6 Correct 1 ms 4440 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 2 ms 4696 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 3 ms 4700 KB Output is correct
13 Correct 3 ms 4696 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 310 ms 42020 KB Output is correct
17 Correct 59 ms 16976 KB Output is correct
18 Correct 75 ms 17748 KB Output is correct
19 Correct 395 ms 50384 KB Output is correct
20 Correct 225 ms 35156 KB Output is correct
21 Correct 33 ms 9048 KB Output is correct
22 Correct 228 ms 33456 KB Output is correct