oj.uz

Submission #960497

# Submission time Handle Problem Language Result Execution time Memory
960497 2024-04-10T14:26:29 Z LmaoLmao Mecho (IOI09_mecho) C++14
0 / 100
 138 ms 9792 KB 
#include<bits/stdc++.h>
using namespace std;
#define fi first
#define se second
 
using ll = long long;
using ii = pair<int, int>;
 
const int N = 1e6+5;
const int INF = 1e9;

int d[1000][1000],m[1000][1000],n,s;
char a[1000][1000];
int dx[4]={1,0,0,-1};
int dy[4]={0,1,-1,0};
ii pos,h;

bool bfs(int x) {
    queue<ii> q;
    q.push(pos);
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            m[i][j]=0;
        }
    }
    while(!q.empty()) {
        ii u=q.front();
        q.pop();
        for(int i=0;i<4;i++) {
            ii v={u.fi+dx[i],u.se+dy[i]};
            if(v.fi<0 || v.fi>=n || v.se<0 || v.se>=n) continue;
            if(m[v.fi][v.se]==0 && a[v.fi][v.se]!='T' && 
            d[v.fi][v.se]-x>=(m[u.fi][u.se]*1.0+1)/(s*1.0) && a[v.fi][v.se]!='M') {
                m[v.fi][v.se]=m[u.fi][u.se]+1;
                q.push(v);
            }
        }
    }
    if(m[h.fi][h.se]>0) return 1; else return 0;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    queue<ii> q;
    cin >> n >> s;
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            cin >> a[i][j];
            if(a[i][j]=='H') {
                q.push({i,j});
            }
            if(a[i][j]=='M') pos={i,j};
            if(a[i][j]=='D') h={i,j};
        }
    }
    while(!q.empty()) {
        ii u=q.front();
        q.pop();
        for(int i=0;i<4;i++) {
            ii v={u.fi+dx[i],u.se+dy[i]};
            if(v.fi<0 || v.fi>=n || v.se<0 || v.se>=n) continue;
            if(d[v.fi][v.se]==0 && a[v.fi][v.se]!='T' && a[v.fi][v.se]!='H') {
                d[v.fi][v.se]=d[u.fi][u.se]+1;
                q.push(v);
            }
        }
    }
    int l=0,r=1000000,ans=-1;
    while(l<=r) {
        int m=(l+r)/2;
        if(bfs(m)) {
            ans=m;
            l=m+1;
        }
        else {
            r=m-1;
        }
    }
    for(int i=0;i<n;i++) {
        for(int j=0;j<n;j++) {
            cout << d[i][j] ;
        }
        cout << endl;
    }
    cout << -1;
    return 0;
}

Compilation message

mecho.cpp: In function 'int main()':
mecho.cpp:70:23: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
   70 |     int l=0,r=1000000,ans=-1;
      |                       ^~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2392 KB Output isn't correct
2 Incorrect 1 ms 2396 KB Output isn't correct
3 Incorrect 2 ms 2396 KB Output isn't correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Incorrect 2 ms 2396 KB Output isn't correct
6 Incorrect 1 ms 2396 KB Output isn't correct
7 Incorrect 72 ms 9540 KB Output isn't correct
8 Incorrect 1 ms 2392 KB Output isn't correct
9 Incorrect 1 ms 2396 KB Output isn't correct
10 Incorrect 1 ms 2396 KB Output isn't correct
11 Incorrect 1 ms 2392 KB Output isn't correct
12 Incorrect 1 ms 2648 KB Output isn't correct
13 Incorrect 1 ms 2652 KB Output isn't correct
14 Incorrect 2 ms 2652 KB Output isn't correct
15 Incorrect 1 ms 2396 KB Output isn't correct
16 Incorrect 1 ms 2396 KB Output isn't correct
17 Incorrect 1 ms 2396 KB Output isn't correct
18 Incorrect 1 ms 2396 KB Output isn't correct
19 Incorrect 1 ms 2652 KB Output isn't correct
20 Incorrect 1 ms 2652 KB Output isn't correct
21 Incorrect 1 ms 2652 KB Output isn't correct
22 Incorrect 1 ms 2652 KB Output isn't correct
23 Incorrect 1 ms 2652 KB Output isn't correct
24 Incorrect 2 ms 2648 KB Output isn't correct
25 Incorrect 1 ms 2652 KB Output isn't correct
26 Incorrect 1 ms 2652 KB Output isn't correct
27 Incorrect 1 ms 2652 KB Output isn't correct
28 Incorrect 1 ms 2652 KB Output isn't correct
29 Incorrect 1 ms 2652 KB Output isn't correct
30 Incorrect 1 ms 2652 KB Output isn't correct
31 Incorrect 1 ms 2652 KB Output isn't correct
32 Incorrect 1 ms 2652 KB Output isn't correct
33 Incorrect 11 ms 6236 KB Output isn't correct
34 Incorrect 9 ms 6236 KB Output isn't correct
35 Incorrect 21 ms 6376 KB Output isn't correct
36 Incorrect 10 ms 6748 KB Output isn't correct
37 Incorrect 16 ms 6700 KB Output isn't correct
38 Incorrect 26 ms 6492 KB Output isn't correct
39 Incorrect 13 ms 7000 KB Output isn't correct
40 Incorrect 12 ms 6928 KB Output isn't correct
41 Incorrect 29 ms 6940 KB Output isn't correct
42 Incorrect 16 ms 7260 KB Output isn't correct
43 Incorrect 16 ms 7260 KB Output isn't correct
44 Incorrect 38 ms 7220 KB Output isn't correct
45 Incorrect 21 ms 7772 KB Output isn't correct
46 Incorrect 18 ms 7584 KB Output isn't correct
47 Incorrect 49 ms 7404 KB Output isn't correct
48 Incorrect 21 ms 8096 KB Output isn't correct
49 Incorrect 21 ms 8028 KB Output isn't correct
50 Incorrect 58 ms 7848 KB Output isn't correct
51 Incorrect 25 ms 8540 KB Output isn't correct
52 Incorrect 26 ms 8528 KB Output isn't correct
53 Incorrect 70 ms 8296 KB Output isn't correct
54 Incorrect 29 ms 9044 KB Output isn't correct
55 Incorrect 30 ms 8824 KB Output isn't correct
56 Incorrect 85 ms 8496 KB Output isn't correct
57 Incorrect 31 ms 9524 KB Output isn't correct
58 Incorrect 37 ms 9300 KB Output isn't correct
59 Incorrect 83 ms 8944 KB Output isn't correct
60 Incorrect 39 ms 9792 KB Output isn't correct
61 Incorrect 38 ms 9752 KB Output isn't correct
62 Incorrect 96 ms 9380 KB Output isn't correct
63 Incorrect 96 ms 9392 KB Output isn't correct
64 Incorrect 138 ms 9552 KB Output isn't correct
65 Incorrect 131 ms 9396 KB Output isn't correct
66 Incorrect 124 ms 9304 KB Output isn't correct
67 Incorrect 105 ms 9484 KB Output isn't correct
68 Incorrect 56 ms 8784 KB Output isn't correct
69 Incorrect 61 ms 8916 KB Output isn't correct
70 Incorrect 56 ms 9020 KB Output isn't correct
71 Incorrect 54 ms 8784 KB Output isn't correct
72 Incorrect 46 ms 8980 KB Output isn't correct
73 Incorrect 45 ms 9300 KB Output isn't correct
74 Incorrect 58 ms 9344 KB Output isn't correct
75 Incorrect 65 ms 9296 KB Output isn't correct
76 Incorrect 57 ms 9184 KB Output isn't correct
77 Incorrect 62 ms 9296 KB Output isn't correct
78 Incorrect 62 ms 9300 KB Output isn't correct
79 Incorrect 60 ms 9468 KB Output isn't correct
80 Incorrect 58 ms 9296 KB Output isn't correct
81 Incorrect 61 ms 9296 KB Output isn't correct
82 Incorrect 54 ms 9300 KB Output isn't correct
83 Incorrect 72 ms 9296 KB Output isn't correct
84 Incorrect 62 ms 9328 KB Output isn't correct
85 Incorrect 62 ms 9296 KB Output isn't correct
86 Incorrect 69 ms 9340 KB Output isn't correct
87 Incorrect 70 ms 9292 KB Output isn't correct
88 Incorrect 80 ms 9296 KB Output isn't correct
89 Incorrect 67 ms 9296 KB Output isn't correct
90 Incorrect 69 ms 9296 KB Output isn't correct
91 Incorrect 74 ms 9316 KB Output isn't correct
92 Incorrect 66 ms 9292 KB Output isn't correct