| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 449998 |
2021-08-02T10:40:35 Z |
vanic |
007 (CEOI14_007) |
C++14 |
|
1000 ms |
15252 KB |
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <vector>
#include <cstring>
#include <queue>
#include <cassert>
#include <set>
#include <array>
using namespace std;
const int maxn=2e5+5;
vector < int > ms[maxn];
int a, b, c, d;
bool bio[2][maxn];
int n, m;
bool provjeri(int x){
set < array < int, 3 > > s;
memset(bio, 0, sizeof(bio));
s.insert({0, 0, b});
s.insert({x, 1, a});
array < int, 3 > y;
while(!s.empty()){
y=*s.begin();
s.erase(s.begin());
if(!y[1] && bio[1][y[2]]){
continue;
}
if(!y[1] && (y[2]==c || y[2]==d)){
return 0;
}
bio[y[1]][y[2]]=1;
for(int i=0; i<(int)ms[y[2]].size(); i++){
if(!bio[y[1]][ms[y[2]][i]]){
bio[y[1]][ms[y[2]][i]]=1;
s.insert({y[0]+1, y[1], ms[y[2]][i]});
}
}
}
return 1;
}
int binary(){
int lo=-1, hi=n, mid;
while(lo<hi){
mid=(lo+hi+1)/2;
if(provjeri(mid)){
lo=mid;
}
else{
hi=mid-1;
}
}
return lo;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> m;
cin >> a >> b >> c >> d;
a--; b--; c--; d--;
assert(a!=b && a!=c && a!=d);
int x, y;
for(int i=0; i<m; i++){
cin >> x >> y;
x--; y--;
ms[x].push_back(y);
ms[y].push_back(x);
}
cout << binary() << '\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
5324 KB |
Output is correct |
| 2 |
Correct |
3 ms |
5324 KB |
Output is correct |
| 3 |
Correct |
3 ms |
5324 KB |
Output is correct |
| 4 |
Incorrect |
3 ms |
5324 KB |
Output isn't correct |
| 5 |
Incorrect |
3 ms |
5324 KB |
Output isn't correct |
| 6 |
Correct |
3 ms |
5324 KB |
Output is correct |
| 7 |
Correct |
4 ms |
5324 KB |
Output is correct |
| 8 |
Incorrect |
3 ms |
5360 KB |
Output isn't correct |
| 9 |
Correct |
4 ms |
5348 KB |
Output is correct |
| 10 |
Correct |
4 ms |
5324 KB |
Output is correct |
| 11 |
Correct |
3 ms |
5324 KB |
Output is correct |
| 12 |
Incorrect |
4 ms |
5324 KB |
Output isn't correct |
| 13 |
Correct |
6 ms |
5324 KB |
Output is correct |
| 14 |
Incorrect |
5 ms |
5324 KB |
Output isn't correct |
| 15 |
Correct |
5 ms |
5324 KB |
Output is correct |
| 16 |
Incorrect |
5 ms |
5324 KB |
Output isn't correct |
| 17 |
Incorrect |
5 ms |
5432 KB |
Output isn't correct |
| 18 |
Incorrect |
5 ms |
5324 KB |
Output isn't correct |
| 19 |
Correct |
5 ms |
5324 KB |
Output is correct |
| 20 |
Correct |
5 ms |
5324 KB |
Output is correct |
| 21 |
Correct |
5 ms |
5324 KB |
Output is correct |
| 22 |
Correct |
5 ms |
5404 KB |
Output is correct |
| 23 |
Correct |
6 ms |
5324 KB |
Output is correct |
| 24 |
Incorrect |
5 ms |
5324 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
225 ms |
6712 KB |
Output is correct |
| 2 |
Incorrect |
252 ms |
7244 KB |
Output isn't correct |
| 3 |
Correct |
214 ms |
6840 KB |
Output is correct |
| 4 |
Incorrect |
293 ms |
7312 KB |
Output isn't correct |
| 5 |
Correct |
248 ms |
6712 KB |
Output is correct |
| 6 |
Correct |
211 ms |
6688 KB |
Output is correct |
| 7 |
Correct |
257 ms |
6860 KB |
Output is correct |
| 8 |
Correct |
226 ms |
6980 KB |
Output is correct |
| 9 |
Incorrect |
222 ms |
7312 KB |
Output isn't correct |
| 10 |
Correct |
410 ms |
11648 KB |
Output is correct |
| 11 |
Incorrect |
734 ms |
8280 KB |
Output isn't correct |
| 12 |
Correct |
802 ms |
9232 KB |
Output is correct |
| 13 |
Incorrect |
248 ms |
8504 KB |
Output isn't correct |
| 14 |
Correct |
379 ms |
7988 KB |
Output is correct |
| 15 |
Correct |
903 ms |
9056 KB |
Output is correct |
| 16 |
Execution timed out |
1053 ms |
9284 KB |
Time limit exceeded |
| 17 |
Correct |
621 ms |
8832 KB |
Output is correct |
| 18 |
Incorrect |
434 ms |
8956 KB |
Output isn't correct |
| 19 |
Correct |
570 ms |
9980 KB |
Output is correct |
| 20 |
Incorrect |
723 ms |
12916 KB |
Output isn't correct |
| 21 |
Incorrect |
921 ms |
10520 KB |
Output isn't correct |
| 22 |
Correct |
879 ms |
9912 KB |
Output is correct |
| 23 |
Execution timed out |
1092 ms |
10308 KB |
Time limit exceeded |
| 24 |
Correct |
900 ms |
10308 KB |
Output is correct |
| 25 |
Execution timed out |
1016 ms |
10084 KB |
Time limit exceeded |
| 26 |
Execution timed out |
1080 ms |
9804 KB |
Time limit exceeded |
| 27 |
Correct |
616 ms |
10428 KB |
Output is correct |
| 28 |
Correct |
626 ms |
10564 KB |
Output is correct |
| 29 |
Correct |
841 ms |
11188 KB |
Output is correct |
| 30 |
Incorrect |
770 ms |
13320 KB |
Output isn't correct |
| 31 |
Execution timed out |
1068 ms |
11164 KB |
Time limit exceeded |
| 32 |
Execution timed out |
1072 ms |
10488 KB |
Time limit exceeded |
| 33 |
Execution timed out |
1090 ms |
10548 KB |
Time limit exceeded |
| 34 |
Execution timed out |
1076 ms |
10904 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1046 ms |
10584 KB |
Time limit exceeded |
| 36 |
Incorrect |
869 ms |
10772 KB |
Output isn't correct |
| 37 |
Execution timed out |
1084 ms |
11496 KB |
Time limit exceeded |
| 38 |
Correct |
795 ms |
11376 KB |
Output is correct |
| 39 |
Execution timed out |
1078 ms |
11528 KB |
Time limit exceeded |
| 40 |
Execution timed out |
1046 ms |
12988 KB |
Time limit exceeded |
| 41 |
Execution timed out |
1083 ms |
15252 KB |
Time limit exceeded |
