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Submission #57575

# Submission time Handle Problem Language Result Execution time Memory
57575 2018-07-15T09:22:14 Z Bodo171 Mecho (IOI09_mecho) C++14
42 / 100
 263 ms 40872 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((d[li][ci]-1)/S+val>=a[li][ci]) continue;
        if(li==l2&&ci==c2) return 1;
        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;
            if(s[j]=='H') a[i][j+1]=0;
        }
    }
    bfs();
   for(int pu=10;pu>=0;pu--)
        if(check(ans+(1<<pu)))
           ans+=(1<<pu);
    cout<<ans;
    return 0;
}

Subtask #1
42.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Incorrect 2 ms 496 KB Output isn't correct
3 Correct 2 ms 588 KB Output is correct
4 Incorrect 3 ms 588 KB Output isn't correct
5 Correct 2 ms 752 KB Output is correct
6 Incorrect 3 ms 752 KB Output isn't correct
7 Incorrect 165 ms 11320 KB Output isn't correct
8 Incorrect 2 ms 11320 KB Output isn't correct
9 Correct 2 ms 11320 KB Output is correct
10 Correct 2 ms 11320 KB Output is correct
11 Correct 3 ms 11320 KB Output is correct
12 Incorrect 3 ms 11320 KB Output isn't correct
13 Correct 3 ms 11320 KB Output is correct
14 Incorrect 3 ms 11320 KB Output isn't correct
15 Correct 3 ms 11320 KB Output is correct
16 Correct 3 ms 11320 KB Output is correct
17 Correct 2 ms 11320 KB Output is correct
18 Correct 2 ms 11320 KB Output is correct
19 Correct 3 ms 11320 KB Output is correct
20 Correct 3 ms 11320 KB Output is correct
21 Correct 3 ms 11320 KB Output is correct
22 Correct 3 ms 11320 KB Output is correct
23 Correct 4 ms 11320 KB Output is correct
24 Correct 3 ms 11320 KB Output is correct
25 Correct 6 ms 11320 KB Output is correct
26 Correct 4 ms 11320 KB Output is correct
27 Correct 4 ms 11320 KB Output is correct
28 Correct 3 ms 11320 KB Output is correct
29 Incorrect 4 ms 11320 KB Output isn't correct
30 Correct 3 ms 11320 KB Output is correct
31 Incorrect 4 ms 11320 KB Output isn't correct
32 Correct 4 ms 11320 KB Output is correct
33 Incorrect 15 ms 11320 KB Output isn't correct
34 Incorrect 13 ms 11320 KB Output isn't correct
35 Correct 38 ms 11320 KB Output is correct
36 Incorrect 16 ms 11320 KB Output isn't correct
37 Incorrect 18 ms 11320 KB Output isn't correct
38 Correct 42 ms 11320 KB Output is correct
39 Incorrect 19 ms 11320 KB Output isn't correct
40 Incorrect 24 ms 11320 KB Output isn't correct
41 Correct 70 ms 11320 KB Output is correct
42 Incorrect 32 ms 11320 KB Output isn't correct
43 Incorrect 21 ms 11320 KB Output isn't correct
44 Correct 65 ms 11320 KB Output is correct
45 Incorrect 32 ms 11320 KB Output isn't correct
46 Incorrect 33 ms 11320 KB Output isn't correct
47 Correct 122 ms 11320 KB Output is correct
48 Incorrect 40 ms 11320 KB Output isn't correct
49 Incorrect 31 ms 11320 KB Output isn't correct
50 Correct 134 ms 11576 KB Output is correct
51 Incorrect 42 ms 11860 KB Output isn't correct
52 Incorrect 37 ms 12276 KB Output isn't correct
53 Correct 149 ms 13460 KB Output is correct
54 Incorrect 42 ms 13760 KB Output isn't correct
55 Incorrect 60 ms 14228 KB Output isn't correct
56 Correct 182 ms 15732 KB Output is correct
57 Incorrect 67 ms 15828 KB Output isn't correct
58 Incorrect 54 ms 16436 KB Output isn't correct
59 Correct 207 ms 18020 KB Output is correct
60 Incorrect 85 ms 18180 KB Output isn't correct
61 Incorrect 46 ms 18768 KB Output isn't correct
62 Correct 230 ms 20772 KB Output is correct
63 Correct 168 ms 20772 KB Output is correct
64 Correct 254 ms 21256 KB Output is correct
65 Correct 263 ms 21796 KB Output is correct
66 Correct 221 ms 22552 KB Output is correct
67 Incorrect 200 ms 23052 KB Output isn't correct
68 Correct 115 ms 23796 KB Output is correct
69 Correct 149 ms 24324 KB Output is correct
70 Correct 100 ms 24952 KB Output is correct
71 Correct 98 ms 25712 KB Output is correct
72 Correct 104 ms 26208 KB Output is correct
73 Correct 102 ms 28864 KB Output is correct
74 Correct 136 ms 29584 KB Output is correct
75 Correct 108 ms 30168 KB Output is correct
76 Correct 131 ms 30800 KB Output is correct
77 Correct 134 ms 31540 KB Output is correct
78 Incorrect 189 ms 32032 KB Output isn't correct
79 Correct 108 ms 32716 KB Output is correct
80 Correct 118 ms 33424 KB Output is correct
81 Correct 150 ms 34044 KB Output is correct
82 Correct 126 ms 34696 KB Output is correct
83 Correct 153 ms 35124 KB Output is correct
84 Correct 158 ms 35756 KB Output is correct
85 Correct 141 ms 36452 KB Output is correct
86 Correct 148 ms 37156 KB Output is correct
87 Correct 184 ms 37708 KB Output is correct
88 Correct 162 ms 38432 KB Output is correct
89 Correct 147 ms 38964 KB Output is correct
90 Correct 177 ms 39592 KB Output is correct
91 Correct 136 ms 40220 KB Output is correct
92 Correct 145 ms 40872 KB Output is correct