| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 57587 |
2018-07-15T11:07:38 Z |
Bodo171 |
Mecho (IOI09_mecho) |
C++14 |
|
363 ms |
10748 KB |
#include <iostream>
#include <fstream>
using namespace std;
const int nmax=805;
int d1[]={-1,0,1,0};
int d2[]={0,-1,0,1};
int d[nmax][nmax],a[nmax][nmax];
string s;
pair<int,int> q[nmax*nmax];
int p,u,n,m,i,j,li,ci,lf,cf,l1,l2,c1,c2,S,ans;
bool ok(int X,int Y)
{
return (X>=1&&Y>=1&&X<=n&&Y<=n);
}
void bfs()
{
p=1;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(a[i][j]==0)
q[++u]={i,j};
for(p=1;p<=u;p++)
{
li=q[p].first;ci=q[p].second;
for(i=0;i<4;i++)
{
lf=li+d1[i];cf=ci+d2[i];
if(ok(lf,cf)&&a[li][ci]+1<a[lf][cf])
{
a[lf][cf]=a[li][ci]+1;
q[++u]={lf,cf};
}
}
}
}
bool check(int val)
{
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(d[i][j]!=-1)
d[i][j]=0;
d[l1][c1]=1;
q[p=u=1]={l1,c1};
for(p=1;p<=u;p++)
{
li=q[p].first;ci=q[p].second;
if(li==l2&&ci==c2) return 1;
if((d[li][ci]-1)/S+val>=a[li][ci]) continue;
for(i=0;i<4;i++)
{
lf=li+d1[i];cf=ci+d2[i];
if(ok(lf,cf)&&(!d[lf][cf]))
{
d[lf][cf]=d[li][ci]+1;
q[++u]={lf,cf};
}
}
}
return 0;
}
int main()
{
//freopen("data.in","r",stdin);
cin>>n>>S;
for(i=0;i<=n+1;i++)
for(j=0;j<=n+1;j++)
a[i][j]=(1<<30);
for(i=1;i<=n;i++)
{
cin>>s;
for(j=0;j<n;j++)
{
if(s[j]=='T') d[i][j+1]=a[i][j+1]=-1;
if(s[j]=='M') l1=i,c1=j+1;
if(s[j]=='D') l2=i,c2=j+1,a[i][j+1]=-1;
if(s[j]=='H') a[i][j+1]=0;
}
}
bfs();
for(int pu=20;pu>=0;pu--)
if(check(ans+(1<<pu)))
ans+=(1<<pu);
if(!check(0)) ans=-1;
cout<<ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
432 KB |
Output is correct |
| 4 |
Correct |
2 ms |
448 KB |
Output is correct |
| 5 |
Correct |
2 ms |
448 KB |
Output is correct |
| 6 |
Correct |
3 ms |
612 KB |
Output is correct |
| 7 |
Correct |
196 ms |
10736 KB |
Output is correct |
| 8 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 9 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 10 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 11 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 12 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 13 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 14 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 15 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 16 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 17 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 18 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 19 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 20 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 21 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 22 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 23 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 24 |
Correct |
6 ms |
10736 KB |
Output is correct |
| 25 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 26 |
Correct |
4 ms |
10736 KB |
Output is correct |
| 27 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 28 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 29 |
Correct |
2 ms |
10736 KB |
Output is correct |
| 30 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 31 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 32 |
Correct |
3 ms |
10736 KB |
Output is correct |
| 33 |
Correct |
16 ms |
10736 KB |
Output is correct |
| 34 |
Correct |
16 ms |
10736 KB |
Output is correct |
| 35 |
Correct |
42 ms |
10736 KB |
Output is correct |
| 36 |
Correct |
34 ms |
10736 KB |
Output is correct |
| 37 |
Correct |
37 ms |
10736 KB |
Output is correct |
| 38 |
Correct |
54 ms |
10736 KB |
Output is correct |
| 39 |
Correct |
31 ms |
10736 KB |
Output is correct |
| 40 |
Correct |
22 ms |
10736 KB |
Output is correct |
| 41 |
Correct |
76 ms |
10736 KB |
Output is correct |
| 42 |
Correct |
22 ms |
10736 KB |
Output is correct |
| 43 |
Correct |
22 ms |
10736 KB |
Output is correct |
| 44 |
Correct |
78 ms |
10736 KB |
Output is correct |
| 45 |
Correct |
37 ms |
10736 KB |
Output is correct |
| 46 |
Correct |
40 ms |
10736 KB |
Output is correct |
| 47 |
Correct |
125 ms |
10736 KB |
Output is correct |
| 48 |
Correct |
36 ms |
10736 KB |
Output is correct |
| 49 |
Correct |
34 ms |
10736 KB |
Output is correct |
| 50 |
Correct |
123 ms |
10736 KB |
Output is correct |
| 51 |
Correct |
37 ms |
10736 KB |
Output is correct |
| 52 |
Correct |
38 ms |
10736 KB |
Output is correct |
| 53 |
Correct |
156 ms |
10736 KB |
Output is correct |
| 54 |
Correct |
51 ms |
10736 KB |
Output is correct |
| 55 |
Correct |
47 ms |
10736 KB |
Output is correct |
| 56 |
Correct |
190 ms |
10736 KB |
Output is correct |
| 57 |
Correct |
62 ms |
10736 KB |
Output is correct |
| 58 |
Correct |
92 ms |
10736 KB |
Output is correct |
| 59 |
Correct |
214 ms |
10736 KB |
Output is correct |
| 60 |
Correct |
57 ms |
10736 KB |
Output is correct |
| 61 |
Correct |
56 ms |
10736 KB |
Output is correct |
| 62 |
Correct |
265 ms |
10736 KB |
Output is correct |
| 63 |
Correct |
245 ms |
10736 KB |
Output is correct |
| 64 |
Correct |
363 ms |
10736 KB |
Output is correct |
| 65 |
Correct |
323 ms |
10736 KB |
Output is correct |
| 66 |
Correct |
284 ms |
10736 KB |
Output is correct |
| 67 |
Correct |
260 ms |
10736 KB |
Output is correct |
| 68 |
Correct |
224 ms |
10736 KB |
Output is correct |
| 69 |
Correct |
166 ms |
10736 KB |
Output is correct |
| 70 |
Correct |
161 ms |
10736 KB |
Output is correct |
| 71 |
Correct |
168 ms |
10736 KB |
Output is correct |
| 72 |
Correct |
215 ms |
10736 KB |
Output is correct |
| 73 |
Correct |
84 ms |
10736 KB |
Output is correct |
| 74 |
Correct |
122 ms |
10748 KB |
Output is correct |
| 75 |
Correct |
144 ms |
10748 KB |
Output is correct |
| 76 |
Correct |
182 ms |
10748 KB |
Output is correct |
| 77 |
Correct |
128 ms |
10748 KB |
Output is correct |
| 78 |
Correct |
162 ms |
10748 KB |
Output is correct |
| 79 |
Correct |
126 ms |
10748 KB |
Output is correct |
| 80 |
Correct |
112 ms |
10748 KB |
Output is correct |
| 81 |
Correct |
219 ms |
10748 KB |
Output is correct |
| 82 |
Correct |
124 ms |
10748 KB |
Output is correct |
| 83 |
Correct |
134 ms |
10748 KB |
Output is correct |
| 84 |
Correct |
213 ms |
10748 KB |
Output is correct |
| 85 |
Correct |
183 ms |
10748 KB |
Output is correct |
| 86 |
Correct |
171 ms |
10748 KB |
Output is correct |
| 87 |
Correct |
177 ms |
10748 KB |
Output is correct |
| 88 |
Correct |
144 ms |
10748 KB |
Output is correct |
| 89 |
Correct |
234 ms |
10748 KB |
Output is correct |
| 90 |
Correct |
185 ms |
10748 KB |
Output is correct |
| 91 |
Correct |
177 ms |
10748 KB |
Output is correct |
| 92 |
Correct |
173 ms |
10748 KB |
Output is correct |
