oj.uz

답안 #960500

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
960500 2024-04-10T14:28:47 Z LmaoLmao Mecho (IOI09_mecho) C++14
8 / 100
 113 ms 8156 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)/s && 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;
        }
    }
    cout << ans;
    return 0;
}

Subtask #1
8.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 2392 KB Output isn't correct
2 Incorrect 1 ms 2396 KB Output isn't correct
3 Incorrect 1 ms 2396 KB Output isn't correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Incorrect 1 ms 2396 KB Output isn't correct
6 Incorrect 1 ms 2396 KB Output isn't correct
7 Correct 48 ms 8024 KB Output is correct
8 Incorrect 1 ms 2396 KB Output isn't correct
9 Incorrect 1 ms 2396 KB Output isn't correct
10 Incorrect 1 ms 2392 KB Output isn't correct
11 Incorrect 0 ms 2396 KB Output isn't correct
12 Incorrect 1 ms 2652 KB Output isn't correct
13 Incorrect 1 ms 2652 KB Output isn't correct
14 Correct 1 ms 2652 KB Output is 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 1 ms 2652 KB Output isn't correct
25 Incorrect 1 ms 2652 KB Output isn't correct
26 Incorrect 1 ms 2648 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 2648 KB Output isn't correct
30 Incorrect 1 ms 2652 KB Output isn't correct
31 Incorrect 1 ms 2648 KB Output isn't correct
32 Incorrect 1 ms 2652 KB Output isn't correct
33 Incorrect 4 ms 5980 KB Output isn't correct
34 Incorrect 4 ms 5980 KB Output isn't correct
35 Incorrect 13 ms 6112 KB Output isn't correct
36 Incorrect 4 ms 6236 KB Output isn't correct
37 Incorrect 5 ms 6316 KB Output isn't correct
38 Incorrect 17 ms 6316 KB Output isn't correct
39 Incorrect 6 ms 6296 KB Output isn't correct
40 Incorrect 6 ms 6488 KB Output isn't correct
41 Incorrect 29 ms 6504 KB Output isn't correct
42 Incorrect 7 ms 6492 KB Output isn't correct
43 Incorrect 7 ms 6492 KB Output isn't correct
44 Incorrect 28 ms 6704 KB Output isn't correct
45 Incorrect 7 ms 6744 KB Output isn't correct
46 Incorrect 7 ms 6784 KB Output isn't correct
47 Incorrect 35 ms 6900 KB Output isn't correct
48 Incorrect 9 ms 7000 KB Output isn't correct
49 Incorrect 9 ms 7004 KB Output isn't correct
50 Incorrect 41 ms 6884 KB Output isn't correct
51 Incorrect 12 ms 7260 KB Output isn't correct
52 Incorrect 10 ms 7260 KB Output isn't correct
53 Incorrect 46 ms 7260 KB Output isn't correct
54 Incorrect 12 ms 7260 KB Output isn't correct
55 Incorrect 13 ms 7260 KB Output isn't correct
56 Incorrect 53 ms 7456 KB Output isn't correct
57 Incorrect 13 ms 7516 KB Output isn't correct
58 Incorrect 15 ms 7516 KB Output isn't correct
59 Incorrect 63 ms 7516 KB Output isn't correct
60 Incorrect 14 ms 7772 KB Output isn't correct
61 Incorrect 14 ms 7772 KB Output isn't correct
62 Incorrect 69 ms 7860 KB Output isn't correct
63 Incorrect 79 ms 7856 KB Output isn't correct
64 Incorrect 110 ms 7768 KB Output isn't correct
65 Incorrect 113 ms 8112 KB Output isn't correct
66 Incorrect 94 ms 7876 KB Output isn't correct
67 Correct 74 ms 7768 KB Output is correct
68 Incorrect 34 ms 7768 KB Output isn't correct
69 Incorrect 33 ms 7772 KB Output isn't correct
70 Incorrect 24 ms 7772 KB Output isn't correct
71 Incorrect 25 ms 7772 KB Output isn't correct
72 Incorrect 24 ms 8024 KB Output isn't correct
73 Incorrect 30 ms 8028 KB Output isn't correct
74 Incorrect 36 ms 8024 KB Output isn't correct
75 Incorrect 39 ms 8144 KB Output isn't correct
76 Incorrect 36 ms 8156 KB Output isn't correct
77 Incorrect 38 ms 8028 KB Output isn't correct
78 Correct 48 ms 8028 KB Output is correct
79 Incorrect 36 ms 8028 KB Output isn't correct
80 Incorrect 38 ms 8028 KB Output isn't correct
81 Incorrect 43 ms 7916 KB Output isn't correct
82 Incorrect 36 ms 8028 KB Output isn't correct
83 Incorrect 44 ms 8016 KB Output isn't correct
84 Incorrect 41 ms 8028 KB Output isn't correct
85 Incorrect 43 ms 8060 KB Output isn't correct
86 Incorrect 47 ms 8024 KB Output isn't correct
87 Incorrect 43 ms 8064 KB Output isn't correct
88 Incorrect 47 ms 8024 KB Output isn't correct
89 Incorrect 49 ms 8024 KB Output isn't correct
90 Incorrect 49 ms 8028 KB Output isn't correct
91 Incorrect 50 ms 8024 KB Output isn't correct
92 Incorrect 47 ms 8028 KB Output isn't correct