#include <iostream>
#include <queue>
#include <vector>
#include <map>
#define p make_pair
using namespace std;
map<int,bool> memo[100000];
queue< pair<int,int> > q;
int check(int a,int b){
if(memo[a][b])
return 0;
q.push(p(a,b));
memo[a][b]=true;
return 1;
}
int main(){
int a,b,c,d,idx=0,t;
cin>>a>>b>>c>>d;
// a=3;b=7;c=3;d=2;
q.push(p(0,0));
memo[0][0]=true;
while(q.size()>0){
t=q.size();
for(int i=0;i<t;i++){
pair<int,int> pp;
pp=q.front();
// cout<<idx<<" "<<pp.first<<" "<<pp.second<<endl;
if(pp.first==c and pp.second==d){
cout<<idx;
return 0;
}
q.pop();
if(pp.first!=a) check(a,pp.second);
if(pp.second!=b) check(pp.first,b);
if(pp.first!=0) check(0,pp.second);
if(pp.second!=0) check(pp.first,0);
if(pp.second+pp.first>b){
check(pp.first-b+pp.second,b);
} else {
check(0,pp.first+pp.second);
}
if(pp.second+pp.first>a){
check(a,pp.second-a+pp.first);
} else {
check(pp.first+pp.second,0);
}
}
idx++;
}
cout<<-1;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
36 ms |
6904 KB |
Output is correct |
| 8 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 12 |
Correct |
6 ms |
4992 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
36 ms |
6904 KB |
Output is correct |
| 8 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 14 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 16 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 17 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 19 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 20 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 21 |
Correct |
6 ms |
4992 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 8 |
Correct |
9 ms |
5248 KB |
Output is correct |
| 9 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
7 ms |
4992 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 7 |
Correct |
36 ms |
6904 KB |
Output is correct |
| 8 |
Correct |
7 ms |
5120 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 10 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 11 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 14 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 15 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 16 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 17 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 19 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 20 |
Correct |
6 ms |
4992 KB |
Output is correct |
| 21 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 22 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 23 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 24 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 25 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 26 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 27 |
Correct |
8 ms |
5120 KB |
Output is correct |
| 28 |
Correct |
9 ms |
5248 KB |
Output is correct |
| 29 |
Correct |
8 ms |
4992 KB |
Output is correct |
| 30 |
Correct |
7 ms |
4992 KB |
Output is correct |
| 31 |
Correct |
8 ms |
5248 KB |
Output is correct |
| 32 |
Correct |
10 ms |
5376 KB |
Output is correct |
| 33 |
Correct |
161 ms |
14464 KB |
Output is correct |
| 34 |
Correct |
9 ms |
5120 KB |
Output is correct |
| 35 |
Correct |
11 ms |
5248 KB |
Output is correct |
| 36 |
Correct |
9 ms |
5080 KB |
Output is correct |
| 37 |
Correct |
12 ms |
5504 KB |
Output is correct |
| 38 |
Correct |
20 ms |
6016 KB |
Output is correct |
| 39 |
Correct |
11 ms |
5376 KB |
Output is correct |
| 40 |
Correct |
13 ms |
5504 KB |
Output is correct |
| 41 |
Correct |
25 ms |
6392 KB |
Output is correct |
| 42 |
Correct |
44 ms |
8184 KB |
Output is correct |
| 43 |
Correct |
26 ms |
6776 KB |
Output is correct |
| 44 |
Correct |
18 ms |
6144 KB |
Output is correct |
| 45 |
Correct |
302 ms |
23144 KB |
Output is correct |
| 46 |
Correct |
6 ms |
4992 KB |
Output is correct |
