oj.uz

Submission #639608

# Submission time Handle Problem Language Result Execution time Memory
639608 2022-09-10T17:36:31 Z teesla Monthly railway pass (LMIO18_menesinis_bilietas) C++14
30 / 100
 3000 ms 29920 KB 
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int>ii;
const int maxn=1e5+10;
vector<ii>adj[5*maxn];
int visitado[5*maxn];

int n,m;

void bfs(int x){
	visitado[x]=0;
	priority_queue<ii,vector<ii>,greater<ii>> fila;
	fila.push({0,x});

	while(!fila.empty()){
		int atual=fila.top().second,dist=fila.top().first;
		fila.pop();
		if(visitado[atual]!=-1 and dist>visitado[atual]) continue;
		visitado[atual]=dist;
		if(visitado[atual]>1)continue;

		for(int i=0; i<adj[atual].size(); i++){
			int viz=adj[atual][i].first, d=adj[atual][i].second;
			if(dist+d>1)continue;
			else if(visitado[viz]==-1 and dist+d<=1){
				visitado[viz]=d+dist;
				fila.push({d+dist,viz});
			}
			else if(visitado[viz]>dist+d){
				visitado[viz]=dist+d;
				fila.push({d+dist,viz});
			}
		}
	}
	return;
}

int main(){
	cin >> n>> m;
	for(int i=0; i<m; i++){
		int a,b;
		char c;
		cin >> a >> b >> c;
		if(c=='T'){
			adj[a].push_back({b,0});
			adj[b].push_back({a,0});
		}
		else{
			adj[a].push_back({b,1});
			adj[b].push_back({a,1});
		}
	}
	int res=0;

	for(int i=1; i<=n; i++){
		for(int j=0; j<=n; j++) visitado[j]=-1;
		bfs(i);
		int ok=1;
		for(int j=1; j<=n; j++){
			if(visitado[j]==-1 or visitado[j]>1){
				ok=0;
				break;
			}
		}
		//if(ok)cout << i<<endl;
		//cout << ok<<endl;
		res+=ok;
	}
	cout << res<<endl;
	return 0;
}

Compilation message

menesinis_bilietas.cpp: In function 'void bfs(int)':
menesinis_bilietas.cpp:22:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   for(int i=0; i<adj[atual].size(); i++){
      |                ~^~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3093 ms 29920 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3048 ms 13780 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11984 KB Output is correct
3 Correct 10 ms 12116 KB Output is correct
4 Correct 22 ms 12184 KB Output is correct
5 Correct 44 ms 12304 KB Output is correct
6 Correct 21 ms 12220 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 7 ms 11988 KB Output is correct
9 Correct 27 ms 12372 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 8 ms 12116 KB Output is correct
14 Correct 8 ms 12108 KB Output is correct
15 Correct 40 ms 12116 KB Output is correct
16 Correct 10 ms 11988 KB Output is correct
17 Correct 8 ms 12092 KB Output is correct
18 Correct 7 ms 11988 KB Output is correct
19 Correct 12 ms 12060 KB Output is correct
20 Correct 19 ms 12256 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11984 KB Output is correct
3 Correct 10 ms 12116 KB Output is correct
4 Correct 22 ms 12184 KB Output is correct
5 Correct 44 ms 12304 KB Output is correct
6 Correct 21 ms 12220 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 7 ms 11988 KB Output is correct
9 Correct 27 ms 12372 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 8 ms 12116 KB Output is correct
14 Correct 8 ms 12108 KB Output is correct
15 Correct 40 ms 12116 KB Output is correct
16 Correct 10 ms 11988 KB Output is correct
17 Correct 8 ms 12092 KB Output is correct
18 Correct 7 ms 11988 KB Output is correct
19 Correct 12 ms 12060 KB Output is correct
20 Correct 19 ms 12256 KB Output is correct
21 Correct 205 ms 12956 KB Output is correct
22 Execution timed out 3070 ms 22224 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11988 KB Output is correct
2 Correct 6 ms 11984 KB Output is correct
3 Correct 10 ms 12116 KB Output is correct
4 Correct 22 ms 12184 KB Output is correct
5 Correct 44 ms 12304 KB Output is correct
6 Correct 21 ms 12220 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 7 ms 11988 KB Output is correct
9 Correct 27 ms 12372 KB Output is correct
10 Correct 7 ms 11988 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 6 ms 11988 KB Output is correct
13 Correct 8 ms 12116 KB Output is correct
14 Correct 8 ms 12108 KB Output is correct
15 Correct 40 ms 12116 KB Output is correct
16 Correct 205 ms 12956 KB Output is correct
17 Execution timed out 3070 ms 22224 KB Time limit exceeded
18 Halted 0 ms 0 KB -