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Submission #1083315

# Submission time Handle Problem Language Result Execution time Memory
1083315 2024-09-02T22:55:24 Z hohemhein Mecho (IOI09_mecho) C++17
54 / 100
 1000 ms 13020 KB 
#include <bits/stdc++.h>
#define ii pair<int,int>
#define iii pair<ii,int>
#define iiii pair<ii,ii>
#define f first
#define s second
#define pb push_back
#define pu push
#define ll long long
#define int long long
#define endl "\n"
#define all(x) (x).begin() , (x).end()
using namespace std;
const int nmax = 8e2+4;
const int oo = 1e12+3;
const ll mod = 1e9+7;

char m[nmax][nmax];
int bee[nmax][nmax];
int bear[nmax][nmax];

int mov[] = { 1,-1 };


void llenar(){

   for( int i = 0; i < nmax; i++ ){
    fill( bear[i], bear[i]+nmax, -1 );
    fill( bee[i], bee[i]+nmax, oo );
   }

}

void bfsBee( vector<ii>&aux, int n ){
  queue<ii>c;
  for( auto [i,j] : aux ){
        c.pu({i,j});
        bee[i][j] = 0;
  }

  while( !c.empty() ){
     auto [x,y] = c.front();
     c.pop();

     for( int i = 0; i < 2; i++ )
        if( x+mov[i] > 0 && x+mov[i] <= n && m[ x+mov[i] ][y] == 'G' && bee[ x+mov[i] ][y] == oo ){
           c.pu( {x+mov[i],y} );
           bee[ x+mov[i] ][y] = bee[x][y]+1;
     }

     for( int i = 0; i < 2; i++ )
        if( y+mov[i] > 0 && y+mov[i] <= n && m[x][y+mov[i]] == 'G' && bee[x][y+mov[i]] == oo ){
           c.pu( {x,y+mov[i]} );
           bee[x][y+mov[i]] = bee[x][y]+1;
     }


  }

}


void bfsBear( ii X, int n, int k ){
  queue<iii>c;
  c.pu({{X.f,X.s},0});
  bear[X.f][X.s] = bee[X.f][X.s] - 1;

  while( !c.empty() ){
     auto [x,y] = c.front().f;
     int pe = c.front().s;
     c.pop();

     for( int i = 0; i < 2; i++ ){
        int newValue = min( bear[x][y] , bee[x+mov[i]][y] - pe/k - 1 );
        if( x+mov[i] > 0 && x+mov[i] <= n && m[ x+mov[i] ][y] != 'T' && bear[ x+mov[i] ][y] < newValue && bee[ x+mov[i] ][y] > pe/k ){
           c.pu( { {x+mov[i],y}, pe+1 } );
           bear[ x+mov[i] ][y] = newValue;
     }
    }

     for( int i = 0; i < 2; i++ ){
        int newValue = min( bear[x][y] , bee[x][y+mov[i]] - pe/k - 1 );
        if( y+mov[i] > 0 && y+mov[i] <= n && m[x][y+mov[i]] != 'T'&& bear[x][y+mov[i]] < newValue && bee[x][y+mov[i]] > pe/k ){
           c.pu( {{x,y+mov[i]},pe+1} );
           bear[x][y+mov[i]] = newValue;
     }
    }

  }

}



int32_t main()
{
    ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie();
    //cout << fixed << setprecision(4);

    /*ifstream cin ("atlarge.in");
    ofstream cout ("atlarge.out");*/


    llenar();

    int n, k; cin >> n >> k;
    ii init, meta;

    vector<ii>aux;

    for( int i = 1; i <= n; i++ )
        for( int j = 1; j <= n; j++ ){
            cin >> m[i][j];
            if( m[i][j] == 'H' )aux.pb({i,j});
            else if( m[i][j] == 'M' )init = {i,j};
            else if( m[i][j] == 'D' )meta = {i,j};
        }
     m[init.f][init.s] = 'G';
     bfsBee( aux, n );

     bfsBear( init, n, k);

   /*  for( int i = 1; i <= n; i++ ){
        for( int j = 1; j <= n; j++ )
        cout << bear[i][j] <<" ";
        cout <<"\n";
     }*/

     if( bear[meta.f][meta.s] != oo )cout << bear[meta.f][meta.s] <<"\n";
     else cout <<"-1\n";

    return 0;
}

Subtask #1
54.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 10588 KB Output isn't correct
2 Incorrect 4 ms 10588 KB Output isn't correct
3 Incorrect 4 ms 10388 KB Output isn't correct
4 Incorrect 4 ms 10588 KB Output isn't correct
5 Correct 4 ms 10588 KB Output is correct
6 Correct 4 ms 10588 KB Output is correct
7 Correct 34 ms 12072 KB Output is correct
8 Incorrect 4 ms 10588 KB Output isn't correct
9 Correct 5 ms 10580 KB Output is correct
10 Correct 5 ms 10444 KB Output is correct
11 Correct 5 ms 10588 KB Output is correct
12 Correct 5 ms 10588 KB Output is correct
13 Correct 5 ms 10584 KB Output is correct
14 Correct 4 ms 10584 KB Output is correct
15 Incorrect 4 ms 10584 KB Output isn't correct
16 Correct 4 ms 10588 KB Output is correct
17 Incorrect 4 ms 10376 KB Output isn't correct
18 Correct 4 ms 10588 KB Output is correct
19 Incorrect 4 ms 10588 KB Output isn't correct
20 Correct 4 ms 10588 KB Output is correct
21 Incorrect 4 ms 10564 KB Output isn't correct
22 Correct 4 ms 10584 KB Output is correct
23 Incorrect 4 ms 10588 KB Output isn't correct
24 Correct 5 ms 10416 KB Output is correct
25 Incorrect 4 ms 10496 KB Output isn't correct
26 Correct 4 ms 10588 KB Output is correct
27 Incorrect 5 ms 10640 KB Output isn't correct
28 Correct 4 ms 10588 KB Output is correct
29 Incorrect 5 ms 10588 KB Output isn't correct
30 Correct 4 ms 10588 KB Output is correct
31 Incorrect 4 ms 10588 KB Output isn't correct
32 Correct 4 ms 10588 KB Output is correct
33 Incorrect 8 ms 10844 KB Output isn't correct
34 Correct 7 ms 10844 KB Output is correct
35 Correct 87 ms 11160 KB Output is correct
36 Incorrect 8 ms 11056 KB Output isn't correct
37 Correct 9 ms 10844 KB Output is correct
38 Correct 130 ms 11252 KB Output is correct
39 Incorrect 8 ms 11096 KB Output isn't correct
40 Correct 9 ms 11108 KB Output is correct
41 Correct 200 ms 11392 KB Output is correct
42 Incorrect 11 ms 11100 KB Output isn't correct
43 Correct 10 ms 10984 KB Output is correct
44 Correct 248 ms 11596 KB Output is correct
45 Incorrect 10 ms 11100 KB Output isn't correct
46 Correct 11 ms 11096 KB Output is correct
47 Correct 324 ms 11900 KB Output is correct
48 Incorrect 13 ms 11356 KB Output isn't correct
49 Correct 12 ms 11356 KB Output is correct
50 Correct 428 ms 12116 KB Output is correct
51 Incorrect 14 ms 11356 KB Output isn't correct
52 Correct 14 ms 11520 KB Output is correct
53 Correct 560 ms 12628 KB Output is correct
54 Incorrect 14 ms 11612 KB Output isn't correct
55 Correct 15 ms 11400 KB Output is correct
56 Correct 673 ms 12408 KB Output is correct
57 Incorrect 16 ms 11684 KB Output isn't correct
58 Correct 17 ms 11612 KB Output is correct
59 Correct 840 ms 12880 KB Output is correct
60 Incorrect 17 ms 11612 KB Output isn't correct
61 Correct 19 ms 11612 KB Output is correct
62 Execution timed out 1008 ms 13020 KB Time limit exceeded
63 Correct 30 ms 11852 KB Output is correct
64 Correct 32 ms 11864 KB Output is correct
65 Correct 32 ms 11608 KB Output is correct
66 Incorrect 32 ms 11608 KB Output isn't correct
67 Correct 28 ms 11608 KB Output is correct
68 Correct 25 ms 11844 KB Output is correct
69 Correct 26 ms 11884 KB Output is correct
70 Correct 26 ms 11868 KB Output is correct
71 Correct 25 ms 11868 KB Output is correct
72 Correct 28 ms 12120 KB Output is correct
73 Correct 28 ms 12380 KB Output is correct
74 Correct 45 ms 12380 KB Output is correct
75 Correct 24 ms 12376 KB Output is correct
76 Correct 28 ms 12380 KB Output is correct
77 Correct 24 ms 12380 KB Output is correct
78 Correct 28 ms 12224 KB Output is correct
79 Correct 171 ms 12380 KB Output is correct
80 Correct 36 ms 12124 KB Output is correct
81 Correct 29 ms 12120 KB Output is correct
82 Correct 59 ms 12124 KB Output is correct
83 Correct 27 ms 12124 KB Output is correct
84 Correct 59 ms 12248 KB Output is correct
85 Correct 97 ms 12124 KB Output is correct
86 Correct 117 ms 12120 KB Output is correct
87 Correct 37 ms 12124 KB Output is correct
88 Correct 75 ms 12124 KB Output is correct
89 Correct 239 ms 12372 KB Output is correct
90 Correct 30 ms 12120 KB Output is correct
91 Correct 39 ms 12120 KB Output is correct
92 Correct 33 ms 12124 KB Output is correct